Association of SNP markers with the linolenic acid content in soybean seeds

Authors

  • Marcos de Oliveira Pinto Embrapa Milho e Sorgo
  • Pedro Ivo Vieira Good‑God Universidade Federal de Viçosa
  • Maurílio Alves Moreira UFV, Departamento de Bioquímica e Biologia Molecular
  • Everaldo Gonçalves de Barros Universidade Federal de Viçosa

DOI:

https://doi.org/10.1590/S1678-3921.pab2013.v48.13158

Keywords:

Glycine max, FAD3A, FAD3B, FAD3C, 18, 3, allelic replacement.

Abstract

The objective of this work was to validate the association of single nucleotide polymorphism (SNP) markers for the genes FAD3A, FAD3B, and FAD3C with the linolenic acid content (18:3) in soybean seeds and to analyze the influence of the genetic parameters of these markers on this trait. One hundred and eighty‑five F2 progenies derived from a cross between A29 (mutant for the three FAD3 genes, 1% 18:3 content) and Tucunaré (wild‑type genotype, 11% 18:3 content) were genotyped. The molecular markers for genes FAD3A, FAD3B, and FAD3C explained the variations in 18:3 content of the F2 and F2:3 segregating populations. In addition, allelic substitutions in the FAD3A locus provide greater variations in 18:3 content than substitutions in the other two loci.

Author Biography

Everaldo Gonçalves de Barros, Universidade Federal de Viçosa

Departamento de Biologia Geral

Instituto de Biotecnologia Aplicada à Agropecuária - BIOAGRO

Genética Molecular de Plantas

Downloads

Published

2013-06-06

How to Cite

Pinto, M. de O., Good‑God, P. I. V., Moreira, M. A., & de Barros, E. G. (2013). Association of SNP markers with the linolenic acid content in soybean seeds. Pesquisa Agropecuaria Brasileira, 48(3), 263–269. https://doi.org/10.1590/S1678-3921.pab2013.v48.13158

Issue

v.48, n.3, mar. 2013

Section

GENETICS