Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 1 de 1
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
Nat Commun ; 9(1): 1699, 2018 04 27.
Artigo em Inglês | MEDLINE | ID: mdl-29703888

RESUMO

Plasticity, the capacity of an organism to respond to its environment, is thought to evolve through changes in development altering the integration of environmental cues. In polyphenism, a discontinuous plastic response produces two or more phenotypic morphs. Here we describe evolutionary change in wing polyphenism and its underlying developmental regulation in natural populations of the red-shouldered soapberry bug, Jadera haematoloma (Insecta: Hemiptera: Rhopalidae) that have adapted to a novel host plant. We find differences in the fecundity of morphs in both sexes and in adult expression of insulin signaling components in the gonads. Further, the plastic response of ancestral-state bugs can be shifted to resemble the reaction norm of derived bugs by the introduction of exogenous insulin or RNA interference targeting the insulin signaling component encoded by FoxO. These results suggest that insulin signaling may be one pathway involved in the evolution of this polyphenism, allowing adaptation to a novel nutritional environment.


Assuntos
Adaptação Fisiológica/genética , Heterópteros/fisiologia , Insulina/metabolismo , Fenótipo , Transdução de Sinais/genética , Animais , Evolução Molecular , Comportamento Alimentar/fisiologia , Feminino , Masculino , Seleção Genética/fisiologia , Fatores Sexuais , Asas de Animais/fisiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA