Data/hora: 11/06/2024 13:24:39

Provedor de dados: | 75
País: | Brazil
Título: | Genetic dissimilarity, selection index and correlation estimation in a melon germplasm
Autores: | Gomes,Danilo A; Alves,Igor M; Maciel,Gabriel M; Siquieroli,Ana Carolina S; Peixoto,Joicy Vitória M; Pires,Patrícia dos S; Medeiros,Iago A de.
Data: | 2021-03-01
Ano: | 2021
Palavras-chave: | Cucumis melo; Plant breeding; Multivariate analysis; Nonparametric indices; Selection gain.
Resumo: | ABSTRACT The success of breeding programs depends on genetic variability. Individuals selected based on a few traits may be a limitation. One alternative is the use of nonparametric indices. However, there is no information on the use of selection indices in melon germplasms. The present study aimed to estimate genetic dissimilarity in a melon germplasm and select potential parent plants for future breeding programs. The genetic material consisted of 37 melon accessions. The traits assessed were fruit diameter and length, diameter and length of the fruit cavity and total soluble solids. Genetic dissimilarity was assessed by multivariate analyses (UPGMA and Tocher). Selection gain estimates were analyzed by comparing the classic Smith-Hazel and sum of ranks indices. Genetic diversity was observed between accessions. The variable that contributed most to genetic dissimilarity was fruit cavity length. Simultaneous selection for the traits assessed based on the sum of ranks index is better suited to melon germplasm assessment. The best accessions for the five variables simultaneously were UFU07, UFU23, UFU09, UFU21, UFU28 and UFU30.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362021000100046
Editor: | Associação Brasileira de Horticultura
Relação: | 10.1590/s0102-0536-20210107
Formato: | text/html
Fonte: | Horticultura Brasileira  v.39 n.1 2021
Fonte: | info:eu-repo/semantics/openAccess