Use este identificador para citar ou linkar para este item:
https://locus.ufv.br//handle/123456789/25610
Tipo: | Artigo |
Título: | Effective population size and genetic gain expected in a population of Coffea canephora |
Autor(es): | Resende, Marcos Deon Vilela de Mistro, Júlio César Fazuoli, Luiz Carlos Vencovsky, Roland |
Abstract: | This work aimed to study the effective population size and genetic gain in a population of robusta coffee (Coffea canephora Pierre) and verify the possibility of using recurrent selection. The experiment comprised 25 treatments, consisting of 21 C. canephora progenies and four C. arabica (cultivars) grown in Brazil. The experimental design was a 5x5 quadruple balanced lattice, with 24 replications, with one plant per plot. Six harvests were performed in each plant. Statistical analysis was carried out using the mixed model methodology. The analysis showed high additive genetic variability, and the magnitude of the additive components prevailed over that of the dominance components. These facts revealed the plant population liability to undergo recurrent selection, whose expected genetic gains were high. Results suggest that the effective population size and inbreeding degree throughout recurrent selection cycles be monitored. During selective cycles, cloning with weak selection is required due to few progenies. |
Palavras-chave: | Robusta coffee Quantitative genetics Inbreeding Additive components |
Editor: | Crop Breeding and Applied Biotechnology |
Tipo de Acesso: | Open Access |
URI: | http://dx.doi.org/10.1590/1984-70332019v19n1a01 http://www.locus.ufv.br/handle/123456789/25610 |
Data do documento: | Mar-2019 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
artigo.pdf | Texto completo | 322,14 kB | Adobe PDF | Visualizar/Abrir |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.