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Local adaptation of Brevicoryne brassicae (Homoptera: Aphididae) to host species at Chiapas, Mexico

Por: Ruiz Montoya, Lorena. Doctora, 1964- [autor/a].
Núñez Farfán, Juan [autor/a].
Tipo de material: Capítulo de libro
 impreso(a) 
 Capítulo de libro impreso(a) Tema(s): Brevicoryne brassicae | Brassica oleracea | Brassica campestris | Adaptación (Biología) | PulgonesTema(s) en inglés: Cabbage aphid | Brassica oleracea | Turnips | Adaptation (Biology) | Plant-liceDescriptor(es) geográficos: Balún Canán, Tenejapa (Chiapas, México) Clasificación: AR/595.752097275 / R8 En: Aphids in a New Millennium / Editors: Jean-Christophe Simon, Jean-Christophe Dedryver, Claude Rispe, Maurice Hullé. Rennes, France : Institut National de la Recherche Agronomique, 2004. páginas 261-266. --ISBN: 273-801-113-6Número de sistema: 51905Resumen:
Inglés

To assess if the populations of Brevicoryne brassicae that use Brassica campestris and B. oleracea are adaptively differentiated in Balún Canal (Chiapas, Mexico), a reciprocal transfer experiment was carried out. Each population was grown in its native and in the alien environment. Whether an organism established successfully or not on each host was recorded. For each organism, three fitness-related traits were measured: age at first reproduction, number of nymphs produced, and longevity. The aphids, on average, reproduced earlier, produced more nymphs and had lower longevity in the wild species B. campestris than in the cultivated B. oleracea. Analysis of selection indicated that early reproduction and higher longevity are favoured in the cultivated species B. oleracea. Finally, each population had the higher proportion of successful establishment on its native environment (host) than in the alien, supporting a scenario of local adaptation.

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ECOSUR AR 595.752097275 R8 Disponible ECO010015552

To assess if the populations of Brevicoryne brassicae that use Brassica campestris and B. oleracea are adaptively differentiated in Balún Canal (Chiapas, Mexico), a reciprocal transfer experiment was carried out. Each population was grown in its native and in the alien environment. Whether an organism established successfully or not on each host was recorded. For each organism, three fitness-related traits were measured: age at first reproduction, number of nymphs produced, and longevity. The aphids, on average, reproduced earlier, produced more nymphs and had lower longevity in the wild species B. campestris than in the cultivated B. oleracea. Analysis of selection indicated that early reproduction and higher longevity are favoured in the cultivated species B. oleracea. Finally, each population had the higher proportion of successful establishment on its native environment (host) than in the alien, supporting a scenario of local adaptation. eng

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