Data/hora: 10/06/2024 11:45:59

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 19/07/2018
Data da última atualização: | 20/07/2018
Autoria: | CERVIGNI, G. D. L.; SCHUSTER, I.; SEDIYAMA, C. S.; BARROS, E. G. de; MOREIRA, M. A.
Afiliação: | Gerardo Domingo Lucio Cervigni, Universidade Federal de Viçosa - UFV/Instituto de Biotecnologia Aplicada à Agropecuária - BIOAGRO; Ivan Schuster, Cooperativa Central de Pesquisa Agrícola; Carlos Sigueyuki Sediyama, Universidade Federal de Viçosa - UFV/Departamento de Fitotecnia; Everaldo Gonçalves de Barros, Universidade Federal de Viçosa - UFV/Departamento de Biologia Geral; Maurilio Alves Moreira, UFV/Departamento de Bioquímica e Biologia Molecular.
Título: | Inherit ance pattern and selection criteria for resistance to soybean cyst nematode races 3 and 9.
Ano de publicação: | 2007
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 10, p. 1413-1419, out. 2007
Idioma: | Inglês
Notas: | Título em português: Padrão de herança e critérios de seleção para resistênciaàs raças 3 e 9 do nematóide-de-cisto-da-soja.
Conteúdo: | The objective of this work was to determine soybean resistance inheritance to Heterodera glycines Ichinohe (soybean cyst nematode ? SCN) races 3 and 9, as well as to evaluate the efficiency of direct and indirect selection in a soybean population of 112 recombinant inbred lines (RIL) derived from the resistant cultivar Hartwig. The experiment was conducted in a completely randomized design, in Londrina, PR, Brazil. The estimated narrow-sense heritabilities for resistance to races 3 and 9 were 80.67 and 77.97%. The genetic correlation coefficient (rg = 0.17; p<0.01) shows that some genetic components of resistance to these two races are inherited together . The greatest genetic gain by indirect selection was obtained to race 9, selecting to race 3 due to simpler inheritance of resistance to race 9 and not because these two races share common resistance genes. The resistance of cultivar Hartwig to races 3 and 9 is determined by 4 and 2 genes, respectively . One of these genes confers resistance to both races, explaining a fraction of the significant genetic correlation found between resistance to these SCN races. The inheritance pattern described indicates that selection for resistance to SCN must be performed for each race individually.
Palavras-Chave: | Linhagem endogâmica recombinante; Recombinant inbred lines; Resistance.
Thesagro: | Glycine Max; Heterodera Glycines; Resistência.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/180027/1/Inheritance-pattern-and-selection-criteria-for-resistance.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (62814-1) - UPE - AP - PP - 630.7081 - P474 -  - DIS