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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Epistatic effects on grain yield of soybean [Glycine max (L.) Merrill].
Autores:  BARONA, M. A. A.
COLOMBARI FILHO, J. M.
SANTOS, V. da S.
GERALDI, I. O.
Data:  2013-01-22
Ano:  2012
Palavras-chave:  Regulação da expressão genética
Soja
Gene
Interação genética
Soybean
Epistasis
Gene expression regulation
Genotype-environment interaction
Resumo:  Studies addressing the estimation of genetic parameters in soybean have not emphasized the epistatic effects. The purpose of this study was to estimate the significance of these effects on soybean grain yield, based on the Modified Triple Test Cross design. Thirty-two inbred lines derived from a cross between two contrasting lines were used, which were crossed with two testers (L1 and L2). The experiments were carried out at two locations, in 10 x 10 triple lattice designs with 9 replications, containing 32 lines (Pi ), 64 crosses (32 Pi x L1 and 32 Pi x L2 ) and controls. The variation between ( L li + L 2i - P i ) revealed the presence of epistasis, as well as an interaction of epistasis x environment. Since the predominant component of epistasis in autogamous species is additive x additive (i type), we suggest postponing the selection for grain yield to later generations of inbreeding in order to exploit the beneficial effects of additive x additive epistasis.

2012
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  31867

http://www.alice.cnptia.embrapa.br/handle/doc/945909

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/74917/1/cbab.pdf
Editor:  Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 12, n. 4, p. 231-236, 2012.
Relação:  Embrapa Arroz e Feijão - Artigo em periódico indexado (ALICE)
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