Expertos analizan el interés de Guerrero por la pintura mural contemporánea

El ciclo de conferencias Por el Color reúne esta semana en el Centro José Guerrero de la Diputación de Granada a cuatro expertos de reconocido prestigio del ámbito de la arquitectura y el arte que pretenden abordar una faceta poco conocida de la obra del pintor granadino: el interés que en los primeros años de su estancia en Nueva York, en la década de los 50, mostró por la arquitectura y sus posibles relaciones con la pintura contemporánea y en concreto, los diversos experimentos e investigaciones sobre muralismo que llevó a cabo.

El director del ciclo, el catedrático de composición arquitectónica de la Universidad de Granada, Juan Calatrava, afirma que «Guerrero estaba fascinado por las posibilidades de la industria química norteamerícana después de la Segunda Guerra Mundial y en especial sobre el desarrollo de los silicatos, que podían posibilitar una nueva pintura mural de gran escala, alejada del fresco tradicional». Bajo las influencias de los muralistas mexicanos, sobre todo de Ribera y de los artistas que actuaban bajo el auspicio del New Deal, Guerrero fue becado en Chicago para abordar esta investigación y logró pequeñas obras, hoy desaparecidas.

El programa se abre hoy con una conferencia de Antonio Jiménez Torrecillas titulada José Guerrero y la fragilidad de la cultura. El miércoles le tocará el turno a Romy Golan, con la charla Portable Murals. El jueves será Calatrava con con José Guerrero, la pintura y el mural, y el viernes De la síntesis antimoderna de las artes a la autonomía del arte, de Simón Marchán. Todas las conferencias serán a las 19 horas en el Centro José Guerrero.

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El Festival Internacional de Teatro acoge una obra de un grupo rumano

El grupo de teatro Ludic Student Theatre, de Rumanía, pone en escena Irish Poem For Violin And Soul, en la Universidad de Granada. La obra, procedente de la Universidad rumana Alexandru Ioan Cuza, es el cuarto espectáculo que se presenta en el III Festival Internacional de Teatro de la Universidad de Granada, que organiza el Aula de Artes Escénicas del Secretariado de Extensión Universitaria de la UGR, con la colaboración del Grupo Coimbra.

La actuación tendrá lugar hoy en el Aula Magna de la Facultad de Filosofía y Letras, a las 19 horas. Las entradas se podrán recoger desde una hora antes en la antesala del Aula Magna.

Las siete universidades europeas que en esta ocasión participan con sus grupos en el III Festival Internacional de Teatro de la Universidad de Granada pertenecen al Grupo Coimbra, y representan a seis países: Suiza (Universidad de Genève), Estonia (Universidad Tartu Viljandi), España (Universidades de Salamanca y de Granada), Rumanía (Universidad Alexandru Ioan Cuza), Alemania (Univ. «Friedrich Schiller» de Jena), y Reino Unido (Universidad de Bristol).

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La ordenanza de convivencia ‘dispara’ la prostitución en los pisos de proxenetas

La ordenanza municipal de convivencia que pretendía combatir la mendicidad, los graffitis o el ‘botellón’ cumple un año. En este tiempo, el Ayuntamiento ha impuesto 3.322 denuncias, 508 relacionadas con la prostitución.

La norma, que ha servido como inspiración a la de otras capitales como Málaga, está recurrida ante el Tribunal Superior de Justicia de Andalucía (TSJA). Pese a los datos, el Consistorio se plantea su primera modificación.

La medida más llamativa, que fue aprobada en octubre de 2009, fue la de las multas al ofrecimiento, demanda o práctica sexual en la vía pública, que puede alcanzar hasta los 3.000 euros de sanción, aunque ahora se estudia que en el caso de las prostitutas se conmute por servicios comunitarios. Sin embargo, iba acompañada de toda una serie de normas sobre el uso del espacio público que hicieron que el Grupo de Juristas 17 de marzo la recurriese por violar, supuestamente, «principios y garantías constitucionales», como el derecho de reunión o manifestación.
Consecuencias

Una de los principales efectos secundarios de esta norma es el auge de esta práctica a locales y a pisos de proxenetas. El profesor Francisco Jiménez Bautista, que enseña Antropología Social en la Universidad de Granada y está especializado en el estudio de la prostitución, explica que «en realidad, no han salido de Granada. Algunas se han movido los famosos 200 metros, hasta meterse en los municipios de Pulianas o Maracena, pero la mayoría se han trasladado a los clubs de alterne o han alquilado pisos que les gestiona el proxeneta», asegura.

«El resultado es que, curiosamente, han subido los precios, y los cuatro o cinco prostíbulos grandes que hay en la ciudad manejan unas 500 mujeres diarias», explica.

El mismo grupo de juristas ahora alega contra las medidas similares que se están incorporando a la ordenanza hermana de Málaga, para la que el concejal de Seguridad Ciudadana de Granada, Eduardo del Moral e impulsor de la «convivencia», fue consultado. Los opositores al texto lo comparan con la Ley de vagos y maleantes mientras el Ayuntamiento utiliza el contraste para explicar lo que la ordenanza no puede hacer, por ejemplo «retirar a un grupo de sin techo de un parque porque hacen ruido. Se los puede multar, pero, ¿de qué sirve?».

La Asociación de Vecinos Albayda, que aglutinaba a los de la carretera de Jaén, lugar habitual para las meretrices callejeras, valora «muy positivamente» el año de aplicación, ya que han desaparecido las situaciones que denunciaban entonces, como bajar a tirar la basura y encontrarse a una profesional «ejerciendo» o escuchar las transacciones de turno bajo sus ventanas. La presidente de la asociación, Carmen Lorenzo, explica que «en realidad, se han trasladado unos 200 metros, pero por lo menos ahora la policía no pasa de largo. Eso sí, las obras del metro también han ayudado a cambiarlas de sitio».

El otro fenómeno que acompaña es «el cambio de horario. La prostituta callejera ahora atiende a las cuatro de la tarde. El cliente, que suele ser un hombre casado, se busca un horario menos sospechoso y en el que sepa que no va a haber mucha vigilancia policial. La demanda se ajusta a las prohibiciones».

Este fenómeno lo constatan en el Ayuntamiento. Del Moral, impulsor de la ordenanza advierte que «tiene poco sentido intentar cobrarles a las prostitutas. La mayoría de las multas que se pagan voluntariamente son de clientes, hombres casados que no quieren que llegue la notificación a casa».
Voces discordancias

La Asociación Pro Derechos Humanos de Andalucía (APDHA) considera que de «convivencia» ha habido «poco o nada» y que se ha precarizado la situación de los colectivos más vulnerables. «El texto anunciaba que se iba a reinvertir el dinero de las multas en programas sociales, y de eso no hemos visto nada», denuncia la portavoz, Natalia Rodríguez.

«Además, los indigentes se han quedado en muchos casos sin sus únicas fuentes de ingresos, como era la música o la venta ambulante, y a las prostitutas no se les ofrecen alternativas», afirma Rodríguez.

El Ayuntamiento señala que aún se están ejecutando «las multas de mayo» y que los colectivos multados en esos casos son los que más difícilmente van a pagarlas. «Actuamos a denuncia de los vecinos, por ejemplo en el caso de los ‘gorrillas’ o por denuncias de ruido, no arbitrariamente», explica el concejal.

En cuanto a los programas sociales, de momento ya hay una campaña de concienciación sobre la explotación sexual en autobuses, marquesinas y otras dependencias municipales. También se consulta la legalidad de que el Consistorio pueda ofrecer los servicios comunitarios como alternativa a la multa «aunque no está claro si es posible, normalmente debe decretarlo un juez».
Abusos de autoridad

La principal queja de los juristas se refiere a la «indefensión» en que el texto deja al ciudadano, al dejar qué es punible a la interpretación del agente de la policía local que actúe en cada caso. En el año se contabilizan varios casos de incidentes en que la multa se convierte en denuncia por atentado a la autoridad ante la negativa del multado a dar sus datos, como en el caso del joven sancionado por beber una coca-cola en la vía pública.

«Hay que aplicar el sentido común», pide José Manuel Fernández, portavoz de la Policía Local. «No son casos penales, no es necesario un juez. Entiendo que estas quejas llegan desde gente que no confía en el criterio de un municipal, pero, ¿a quién llamas para controlar el tráfico si hay un atasco? Son problemas de la vía pública, que es lo que controla el Ayuntamiento, y el agente informa, pide los datos y, en última instancia, multa. Otra cosa es que se le resistan o le agredan, entonces, ¿qué tiene qué hacer?».

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News tips from a special issue of the International Journal of Plant Sciences

The November/December issue of the International Journal of Plant Sciences explores the current state of our knowledge of natural selection in plants.

“Plants were crucially important to Darwin’s development of the theory of natural selection (six of his books were on plants),” writes Jeffrey Conner, a biologist at Michigan State University and guest editor of the issue. “Plants are still crucially important to the study of natural selection in the field.”

The issue features reviews and original research articles that explore multiple aspects of this complex topic. A complete table of contents for the issue is available at http://www.journals.uchicago.edu/toc/ijps/current.

The Evolution of Self-Fertilization

The ability of some plants to self-fertilize has its advantages, especially in areas where there aren’t many pollinating insects. But research by Susan Mazer from U.C. Santa Barbara and colleagues suggests that self-fertilization may not always be an evolutionary advantage in and of itself. Rather, it sometimes may evolve because it is linked to physiological traits that help plants deal with seasonal drought.

The researchers studied four closely related species of Clarkia, which belong to the Evening Primrose family. Two of the species are predominantly self-fertilizing (selfers); the other two are predominantly outcrossing, meaning they fertilize via pollen transfer from plant to plant. The research has found that the selfers have physiological traits (faster photosynthetic rates per area of leaf, for example) that appear to promote a more rapid life cycle. As a result, selfers produce flowers and begin the reproductive process weeks before their outcrossing counterparts, and before the onset of the late spring drought in the plants’ native habitat.

In addition to avoiding the periods of most intense drought, the faster life cycle is associated with more rapid floral development and the production of smaller flowers. In those smaller flowers, the male and female sex parts are closer together, increasing the chance that pollen will be transferred to the flower’s own stigma — self-fertilization. These results suggest that in the case of Clarkia, self-fertilization may have evolved partly as a “side-effect” of natural selection for a drought-avoiding life cycle.

Susan Mazer, Leah Dudley, Alisa Hove, Simon K. Emms, and Amy Verhoeven, “Physiological performance within and between Clarkia sister taxa with contrasting mating systems: do selfers avoid water-stress by flowering early?”

How Pollinators Sculpt Flowers

For the past 10 years, José María Gómez and Francisco Perfectti of the University of Granada have used complex geometric analysis to study how insect pollinators influence the evolution of flower shape.

Through a series of experiments, the researchers found that different pollinators have preferences for distinct variations in flower shape in E. mediohispanicum, a wild herb common in mountainous regions of Spain. For example, large bees preferred flowers with narrow petals; small bees had a preference for wider flowers; bee flies had a preference for rounded flowers. In the wild, flower shapes in different populations of E. mediohispanicum were found to differ significantly according to which type of pollinators were more common in the area. The result is a “geographic mosaic of selection on different [flower] shapes,” the researchers write.

Why would insects prefer specific flower shapes? Gómez and Perfectti’s research indicates that, in E. mediohispanicum, flower shape is an honest signal of a pollinator’s reward. Flowers with shapes preferred by pollinators tend to have higher output of nectar and pollen. The research provides valuable insight into the evolution of a complex trait in flowering plants — a topic Darwin once described as an “abominable mystery.”

José María Gómez and Francisco Perfectti, “Evolution of complex traits: the case of Erysimum corolla shape.”

Natural Selection on Not-so-natural Plants

Research by Andrew Stephenson and his colleagues at Penn State shows that while a genetically modified squash plant may be resistant to common virus transmitted by aphids, it’s no match for bacteria transmitted by beetles.

Stephenson’s ongoing research program examines what happens when modified genes, known as transgenes, escape into fields of wild squash. Stephenson is investigating a particular transgene that gives squash plants extra resistance to a virus that commonly infects both wild and cultivated squash. Scientists have long worried that if transgenes like this one escape into the wild, plants with the gene may grow unchecked and wreak havoc on ecosystems.

Stephenson’s field experiments, which have been going on for four years now, show that the transgene does help plants resist the target virus. When aphids that carry the virus arrive in experimental fields in the spring, wild plants without the transgene tend to become infected while transgenic plants stay healthy. Good health, however, makes the transgenic squash look tasty to beetles. Beetles preferentially attack transgenic squash, infecting many with devastating bacteria. The beetle attack neutralizes nearly all of the fitness advantage the transgenic squash may have enjoyed by being resistant to viral infection. So in this case, natural selection kept the genetically modified plants in check.

Miruna Sasu, Matthew Ferrari, and Andrew Stephenson, “Costs and Benefits of a Virus Resistant Transgene During Introgression into a Wild Gourd.”

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News tips from a special issue of the International Journal of Plant Sciences

The November/December issue of the International Journal of Plant Sciences explores the current state of our knowledge of natural selection in plants.

«Plants were crucially important to Darwin’s development of the theory of natural selection (six of his books were on plants),» writes Jeffrey Conner, a biologist at Michigan State University and guest editor of the issue. «Plants are still crucially important to the study of natural selection in the field.»

The issue features reviews and original research articles that explore multiple aspects of this complex topic. A complete table of contents for the issue is available at http://www.journals.uchicago.edu/toc/ijps/current.

The Evolution of Self-Fertilization

The ability of some plants to self-fertilize has its advantages, especially in areas where there aren’t many pollinating insects. But research by Susan Mazer from U.C. Santa Barbara and colleagues suggests that self-fertilization may not always be an evolutionary advantage in and of itself. Rather, it sometimes may evolve because it is linked to physiological traits that help plants deal with seasonal drought.

The researchers studied four closely related species of Clarkia, which belong to the Evening Primrose family. Two of the species are predominantly self-fertilizing (selfers); the other two are predominantly outcrossing, meaning they fertilize via pollen transfer from plant to plant. The research has found that the selfers have physiological traits (faster photosynthetic rates per area of leaf, for example) that appear to promote a more rapid life cycle. As a result, selfers produce flowers and begin the reproductive process weeks before their outcrossing counterparts, and before the onset of the late spring drought in the plants’ native habitat.

In addition to avoiding the periods of most intense drought, the faster life cycle is associated with more rapid floral development and the production of smaller flowers. In those smaller flowers, the male and female sex parts are closer together, increasing the chance that pollen will be transferred to the flower’s own stigma—self-fertilization. These results suggest that in the case of Clarkia, self-fertilization may have evolved partly as a «side-effect» of natural selection for a drought-avoiding life cycle.

Susan Mazer, Leah Dudley, Alisa Hove, Simon K. Emms, and Amy Verhoeven, «Physiological performance within and between Clarkia sister taxa with contrasting mating systems: do selfers avoid water-stress by flowering early?»

How Pollinators Sculpt Flowers

For the past 10 years, José María Gómez and Francisco Perfectti of the University of Granada have used complex geometric analysis to study how insect pollinators influence the evolution of flower shape.

Through a series of experiments, the researchers found that different pollinators have preferences for distinct variations in flower shape in E. mediohispanicum, a wild herb common in mountainous regions of Spain. For example, large bees preferred flowers with narrow petals; small bees had a preference for wider flowers; bee flies had a preference for rounded flowers. In the wild, flower shapes in different populations of E. mediohispanicum were found to differ significantly according to which type of pollinators were more common in the area. The result is a «geographic mosaic of selection on different [flower] shapes,» the researchers write.

Why would insects prefer specific flower shapes? Gómez and Perfectti’s research indicates that, in E. mediohispanicum, flower shape is an honest signal of a pollinator’s reward. Flowers with shapes preferred by pollinators tend to have higher output of nectar and pollen. The research provides valuable insight into the evolution of a complex trait in flowering plants—a topic Darwin once described as an «abominable mystery.»

José María Gómez and Francisco Perfectti, «Evolution of complex traits: the case of Erysimum corolla shape.»

Natural Selection on Not-so-natural Plants

Research by Andrew Stephenson and his colleagues at Penn State shows that while a genetically modified squash plant may be resistant to common virus transmitted by aphids, it’s no match for bacteria transmitted by beetles.

Stephenson’s ongoing research program examines what happens when modified genes, known as transgenes, escape into fields of wild squash. Stephenson is investigating a particular transgene that gives squash plants extra resistance to a virus that commonly infects both wild and cultivated squash. Scientists have long worried that if transgenes like this one escape into the wild, plants with the gene may grow unchecked and wreak havoc on ecosystems.

Stephenson’s field experiments, which have been going on for four years now, show that the transgene does help plants resist the target virus. When aphids that carry the virus arrive in experimental fields in the spring, wild plants without the transgene tend to become infected while transgenic plants stay healthy. Good health, however, makes the transgenic squash look tasty to beetles. Beetles preferentially attack transgenic squash, infecting many with devastating bacteria. The beetle attack neutralizes nearly all of the fitness advantage the transgenic squash may have enjoyed by being resistant to viral infection. So in this case, natural selection kept the genetically modified plants in check.

Miruna Sasu, Matthew Ferrari, and Andrew Stephenson, «Costs and Benefits of a Virus Resistant Transgene During Introgression into a Wild Gourd.»

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News tips from a special issue of the International Journal of Plant Sciences

The November/December issue of the International Journal of Plant Sciences explores the current state of our knowledge of natural selection in plants. «Plants were crucially important to Darwin’s development of the theory of natural selection (six of his books were on plants),» writes Jeffrey Conner, a biologist at Michigan State University and guest editor of the issue. «Plants are still crucially important to the study of natural selection in the field.»

The issue features reviews and original research articles that explore multiple aspects of this complex topic. A complete table of contents for the issue is available at http://www.journals.uchicago.edu/toc/ijps/current.

The Evolution of Self-Fertilization

The ability of some plants to self-fertilize has its advantages, especially in areas where there aren’t many pollinating insects. But research by Susan Mazer from U.C. Santa Barbara and colleagues suggests that self-fertilization may not always be an evolutionary advantage in and of itself. Rather, it sometimes may evolve because it is linked to physiological traits that help plants deal with seasonal drought.

The researchers studied four closely related species of Clarkia, which belong to the Evening Primrose family. Two of the species are predominantly self-fertilizing (selfers); the other two are predominantly outcrossing, meaning they fertilize via pollen transfer from plant to plant. The research has found that the selfers have physiological traits (faster photosynthetic rates per area of leaf, for example) that appear to promote a more rapid life cycle. As a result, selfers produce flowers and begin the reproductive process weeks before their outcrossing counterparts, and before the onset of the late spring drought in the plants’ native habitat.

In addition to avoiding the periods of most intense drought, the faster life cycle is associated with more rapid floral development and the production of smaller flowers. In those smaller flowers, the male and female sex parts are closer together, increasing the chance that pollen will be transferred to the flower’s own stigma—self-fertilization. These results suggest that in the case of Clarkia, self-fertilization may have evolved partly as a «side-effect» of natural selection for a drought-avoiding life cycle.

Susan Mazer, Leah Dudley, Alisa Hove, Simon K. Emms, and Amy Verhoeven, «Physiological performance within and between Clarkia sister taxa with contrasting mating systems: do selfers avoid water-stress by flowering early?»

How Pollinators Sculpt Flowers

For the past 10 years, José María Gómez and Francisco Perfectti of the University of Granada have used complex geometric analysis to study how insect pollinators influence the evolution of flower shape.

Through a series of experiments, the researchers found that different pollinators have preferences for distinct variations in flower shape in E. mediohispanicum, a wild herb common in mountainous regions of Spain. For example, large bees preferred flowers with narrow petals; small bees had a preference for wider flowers; bee flies had a preference for rounded flowers. In the wild, flower shapes in different populations of E. mediohispanicum were found to differ significantly according to which type of pollinators were more common in the area. The result is a «geographic mosaic of selection on different [flower] shapes,» the researchers write.

Why would insects prefer specific flower shapes? Gómez and Perfectti’s research indicates that, in E. mediohispanicum, flower shape is an honest signal of a pollinator’s reward. Flowers with shapes preferred by pollinators tend to have higher output of nectar and pollen. The research provides valuable insight into the evolution of a complex trait in flowering plants—a topic Darwin once described as an «abominable mystery.»

José María Gómez and Francisco Perfectti, «Evolution of complex traits: the case of Erysimum corolla shape.»

Natural Selection on Not-so-natural Plants

Research by Andrew Stephenson and his colleagues at Penn State shows that while a genetically modified squash plant may be resistant to common virus transmitted by aphids, it’s no match for bacteria transmitted by beetles.

Stephenson’s ongoing research program examines what happens when modified genes, known as transgenes, escape into fields of wild squash. Stephenson is investigating a particular transgene that gives squash plants extra resistance to a virus that commonly infects both wild and cultivated squash. Scientists have long worried that if transgenes like this one escape into the wild, plants with the gene may grow unchecked and wreak havoc on ecosystems.

Stephenson’s field experiments, which have been going on for four years now, show that the transgene does help plants resist the target virus. When aphids that carry the virus arrive in experimental fields in the spring, wild plants without the transgene tend to become infected while transgenic plants stay healthy. Good health, however, makes the transgenic squash look tasty to beetles. Beetles preferentially attack transgenic squash, infecting many with devastating bacteria. The beetle attack neutralizes nearly all of the fitness advantage the transgenic squash may have enjoyed by being resistant to viral infection. So in this case, natural selection kept the genetically modified plants in check.

Miruna Sasu, Matthew Ferrari, and Andrew Stephenson, «Costs and Benefits of a Virus Resistant Transgene During Introgression into a Wild Gourd.»

Descargar


News tips from a special issue of the International Journal of Plant Sciences

The November/December issue of the International Journal of Plant Sciences explores the current state of our knowledge of natural selection in plants.

«Plants were crucially important to Darwin’s development of the theory of natural selection (six of his books were on plants),» writes Jeffrey Conner, a biologist at Michigan State University and guest editor of the issue. «Plants are still crucially important to the study of natural selection in the field.»

The issue features reviews and original research articles that explore multiple aspects of this complex topic. A complete table of contents for the issue is available at http://www.journals.uchicago.edu/toc/ijps/current.

The Evolution of Self-Fertilization

The ability of some plants to self-fertilize has its advantages, especially in areas where there aren’t many pollinating insects. But research by Susan Mazer from U.C. Santa Barbara and colleagues suggests that self-fertilization may not always be an evolutionary advantage in and of itself. Rather, it sometimes may evolve because it is linked to physiological traits that help plants deal with seasonal drought.

The researchers studied four closely related species of Clarkia, which belong to the Evening Primrose family. Two of the species are predominantly self-fertilizing (selfers); the other two are predominantly outcrossing, meaning they fertilize via pollen transfer from plant to plant. The research has found that the selfers have physiological traits (faster photosynthetic rates per area of leaf, for example) that appear to promote a more rapid life cycle. As a result, selfers produce flowers and begin the reproductive process weeks before their outcrossing counterparts, and before the onset of the late spring drought in the plants’ native habitat.

In addition to avoiding the periods of most intense drought, the faster life cycle is associated with more rapid floral development and the production of smaller flowers. In those smaller flowers, the male and female sex parts are closer together, increasing the chance that pollen will be transferred to the flower’s own stigma – self-fertilization. These results suggest that in the case of Clarkia, self-fertilization may have evolved partly as a «side-effect» of natural selection for a drought-avoiding life cycle.

Susan Mazer, Leah Dudley, Alisa Hove, Simon K. Emms, and Amy Verhoeven, «Physiological performance within and between Clarkia sister taxa with contrasting mating systems: do selfers avoid water-stress by flowering early?»

How Pollinators Sculpt Flowers

For the past 10 years, José María Gómez and Francisco Perfectti of the University of Granada have used complex geometric analysis to study how insect pollinators influence the evolution of flower shape.

Through a series of experiments, the researchers found that different pollinators have preferences for distinct variations in flower shape in E. mediohispanicum, a wild herb common in mountainous regions of Spain. For example, large bees preferred flowers with narrow petals; small bees had a preference for wider flowers; bee flies had a preference for rounded flowers. In the wild, flower shapes in different populations of E. mediohispanicum were found to differ significantly according to which type of pollinators were more common in the area. The result is a «geographic mosaic of selection on different [flower] shapes,» the researchers write.

Why would insects prefer specific flower shapes? Gómez and Perfectti’s research indicates that, in E. mediohispanicum, flower shape is an honest signal of a pollinator’s reward. Flowers with shapes preferred by pollinators tend to have higher output of nectar and pollen. The research provides valuable insight into the evolution of a complex trait in flowering plants – a topic Darwin once described as an «abominable mystery.»

José María Gómez and Francisco Perfectti, «Evolution of complex traits: the case of Erysimum corolla shape.»

Natural Selection on Not-so-natural Plants

Research by Andrew Stephenson and his colleagues at Penn State shows that while a genetically modified squash plant may be resistant to common virus transmitted by aphids, it’s no match for bacteria transmitted by beetles.

Stephenson’s ongoing research program examines what happens when modified genes, known as transgenes, escape into fields of wild squash. Stephenson is investigating a particular transgene that gives squash plants extra resistance to a virus that commonly infects both wild and cultivated squash. Scientists have long worried that if transgenes like this one escape into the wild, plants with the gene may grow unchecked and wreak havoc on ecosystems.

Stephenson’s field experiments, which have been going on for four years now, show that the transgene does help plants resist the target virus. When aphids that carry the virus arrive in experimental fields in the spring, wild plants without the transgene tend to become infected while transgenic plants stay healthy. Good health, however, makes the transgenic squash look tasty to beetles. Beetles preferentially attack transgenic squash, infecting many with devastating bacteria. The beetle attack neutralizes nearly all of the fitness advantage the transgenic squash may have enjoyed by being resistant to viral infection. So in this case, natural selection kept the genetically modified plants in check.

Miruna Sasu, Matthew Ferrari, and Andrew Stephenson, «Costs and Benefits of a Virus Resistant Transgene During Introgression into a Wild Gourd.»

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Granada Económica

Pág. 9 – Instituciones (Portada): La UGR recibirá 14 millones de euros del Ministerio de Ciencia para Innocampus

La empresa PTEC y la UGR se unen contra el Alzheimer

Pág. 14: LA UGR se convierte en líder indiscutible del programa Innocampus

Programa que enseña cómo los ordenadores entienden las instrucciones que se les dan

Pág. 15: La empresa PTEC y la UGR firman un convenio de colaboración

Conservación del patrimonio

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Granada 7 días

Pág. 3: Movilidad Internacional

Pág. 20: Una mirada a la China actual

Festival de Teatro Universitario

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ABC

Pág. 50: Granada sufrió más de veinte terremotos durante el fin de semana

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20 Minutos

Pág. 2: Cine: Otra mujer / Teatro: Universitarios, a escena

Registrados una veintena de pequeños terremotos durante el fin de semana

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Ideal

Pág. 9: «No hay por qué alarmarse. Estamos en una zona de series sísmicas»

Pág. 12: Los estudiantes se apuntan a los experimentos científicos

Pág. 13 – Publicidad: III Festival Internacional de Teatro Universitario de Granada

VIVIR -Pág. 11: Teatro: ‘Irish Poem For Violin And Soul’

Pág. 41: Cuatro especialistas analizan la relación de José Guerrero con la arquitectura

Pág. 44: La ciencia, contada por marionetas

Ciclo de conferencias de la Unesco

III festival internacional de teatro universitario

Identifican tres nuevos genes que predisponen a padecer esclerodermia

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