Data/hora: 13/06/2024 09:27:48

Provedor de dados: | 65
País: | Brazil
Título: | Predominant trait inheritance in wheat with multivariate approach
Autores: | Melo,Rita Carolina de; Toigo,Marcelo de Carli; Lannes,Sergio Dias; Trevisani,Nicole; Pereira,Thayse Cristine Vieira; Grigolo,Sibila; Guidolin,Altamir Frederico; Coimbra,Jefferson Luís Meirelles.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Triticum aestivum; Multivariate contrasts; Additivity; Inbreeding.
Resumo: | ABSTRACT: The objective of this study was to analize the inheritance of characters in wheat using multivariate analysis of variance. Sixteen genetic constitutions were evaluated between commercial cultivars and progenies F1 and F2. Treatments were arranged in completely randomized blocks, with three replicates. Five characters were evaluated. Multivariate analysis of variance and multivariate contrasts were then performed to test the hypotheses. The significant differences, obtained for comparison between parents and progenies F1, may be evidence of heterosis occurrence. However, only comparisons between progenies P1_P3 (F1) vs. P1_P3 (F2) and P4_P2 (F1) vs. P4_P2 (F2) showed significant differences. Multivariate analysis of variance revealed that inheritance of the characters studied is predominantly of the additive type. It is possible that, this occurred due to the degree of relationship between parents who reunited identical alleles at the same locus, by ancestry, as a result of inbreeding effects. The knowledge of additive inheritance may represent a faster incorporation of resistance or quality characteristics in new cultivars.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700201
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20160859
Formato: | text/html
Fonte: | Ciência Rural  v.47 n.7 2017
Fonte: | info:eu-repo/semantics/openAccess