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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

eproductive Patterns Drive the Gene Flow and Spatial Dispersal of Euschistus heros (Hemiptera: Pentatomidae

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Autor(es):
Hickmann, Frederico [1] ; Cordeiro, Erick Goes [1] ; Soares, Patricia Lima [1] ; Aurelio, Mateus Souza L. [1] ; Schwertner, Cristiano Feldens [2] ; Correa, Alberto Soares [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr USP ESALQ, Dept Entomol & Acarol, BR-13418900 Piracicaba, SP - Brazil
[2] Univ Fed Sao Paulo, Dept Ecol & Evolutionary Biol, Grad Program Ecol & Evolut, BR-09972270 Diadema, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Journal of Economic Entomology; v. 114, n. 6, p. 2346-2354, DEC 2021.
Citações Web of Science: 0
Resumo

Euschistus heros (Hemiptera: Pentatomidae) has two allopatric strains with a hybrid zone in central Brazil. Asymmetric dispersal and gene flow between these strains of E. heros have been observed, where the South strain (SS) moves more quickly to the northern regions of the country than the North strain (NS) to the southern areas. In addition, SS generally has a bigger body size and presents dark brown coloration, and NS is usually smaller in size and presents light brown coloration. Here, we studied the reproductive behavior and tested for the presence of assortative mating and reproductive barriers between the two allopatric strains of E. heros. Nonrandom mating was observed in the SS strain based on mating choice trials and the reproductive isolation indexes. SS females and males prefer to mate with their co-specific (same strain) partner, while NS insects showed no mating preference. The insect's pronotum width was positively associated with the mating choice suggesting size-assortative mating in E. heros. Reciprocal crosses between strains yielded similar reproductive outputs when compared with pure strain crosses, suggesting similar fitness of hybrid pure strains. The asymmetric gene flow in the hybridization zone that favors SS seems to be associated with the reproductive behavior of the species, which favors the typical phenotype found in the SS populations. (AU)

Processo FAPESP: 14/11495-3 - Um enfoque demográfico e adaptativo visando a construção de estratégias sustentáveis de manejo de pragas agrícolas para o agroecossistema brasileiro
Beneficiário:Alberto Soares Corrêa
Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
Processo FAPESP: 14/50871-0 - INCT 2014: Instituto Nacional de Ciência Tecnologia de Semioquímicos na Agricultura
Beneficiário:José Roberto Postali Parra
Modalidade de apoio: Auxílio à Pesquisa - Temático
Processo FAPESP: 18/20351-6 - Dormência e adaptação a hospedeiros de duas linhagens alopátricas de Euschistus heros (Hemiptera: Pentatomidae)
Beneficiário:Frederico Hickmann
Modalidade de apoio: Bolsas no Brasil - Doutorado