Data/hora: 13/06/2024 07:06:04

Provedor de dados: 	Pesquisa Agropecuária Brasileira	
País: 	Brazil	
Título: 	Inheritance of resistance to soybean cyst nematode races 3 and 14 in soybean RIL and F2 populations	
Autores: 	Silva,Marcia Flores da; Schuster,Ivan; Cervigni,Gerardo Domingo Lucio; Silva,João Flávio Veloso da; Dias,Waldir Pereira; Ferreira,Adésio; Barros,Everaldo Gonçalves de; Moreira,Maurílio Alves.	
Data: 	2007-12-01	
Ano: 	2007	
Palavras-chave: 	Glycine max; Heterodera glycines; Improvement; Recombinant inbred lines; Soybean cyst nematode.	
Resumo: 	The objective of this work was to evaluate the soybean inheritance of resistance to cyst nematode races 3 and 14. The following populations where evaluated: one population of recombinant inbred lines (RILs) [Hartwig (resistant) x Y23 (susceptible line)] for races 3, 14 and 9; one population of families F2:3 [M-SOY 8001 (resistant) x MB/BR 46 - Conquista (susceptible)] for race 3; and one population of families F2:3 [(S5995 (resistant) x BRSMG Renascença (susceptible)] for race 14. In RIL populations, four epistatic genes were identified which conditioned resistance to race 14, and three epistatic ones for resistance to races 3 and 9. The lack of one gene provided moderate resistance under all situations. The highest number of genes for resistance to race 14 points out that genes responsible for lower effects might be involved. In population F2:3 from M-SOY 8001 x MB/BR 46 - Conquista, one recessive gene for moderate resistance and two recessive genes complete resistance to race 3 were identified. Two recessive genes conditioning moderate resistance to race 14 were identified in population F2:3 from the crossing S5995 x BRSMG Renascença. These results will be useful in designing crossings, involving these parentals, with higher possibility to accumulating genes that provide resistance to several SCN races.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007001200010	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2007001200010	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.42 n.12 2007	
Fonte: 	info:eu-repo/semantics/openAccess