Data/hora: 16/06/2024 00:39:36

Provedor de dados: | 86
País: | Brazil
Título: | Genetic diversity of irrigated barley based on molecular and quantitative data and on malting quality
Autores: | Amabile,Renato Fernando; Faleiro,Fábio Gelape; Vieira,Eduardo Alano; Peixoto,José Ricardo; Capettini,Flávio; Ribeiro Júnior,Walter Quadros.
Data: | 2013-07-01
Ano: | 2013
Palavras-chave: | Hordeum vulgare; Breeding; Cerrado; Cluster analysis; Genetic resources; Selection indices.
Resumo: | The objective of this work was to quantify the genetic diversity of elite genotypes of irrigated barley in the Brazilian savanna. Thirty elite barley genotypes from Embrapa Cerrados' collection were evaluated using 160 RAPD markers, 12 agronomic traits related to yield components, and 10 malting quality parameters. The genetic dissimilarity matrices based on molecular markers, quantitative traits, and malting quality characters were calculated and a cluster analysis was performed using the unweighted pair-group method with arithmetic mean (UPGMA) as grouping criterion. High genetic diversity among accessions were observed. The estimated genetic dissimilarities were weakly correlated, showing the complementarity of the different character groups. Selection indices and graphical dispersion analysis allowed the selection of promising genotypes and the indication of suitable crosses for maximizing the heterotic effects in breeding programs for irrigated barley in the Brazilian savanna.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000700007

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2013000700007
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.48 n.7 2013
Fonte: | info:eu-repo/semantics/openAccess