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

作者：Pinto Marcos de Oliveira^*; Vieira Good God Pedro Ivo; Moreira Maurilio Alves; de Barros Everaldo Goncalves

来源：Pesquisa Agropecuaria Brasileira, 2013, 48(3): 263-269.

DOI：10.1590/S0100-204X2013000300004

• Glycine max
• FAD3A
• FAD3B
• FAD3C
• 18:3
• allelic replacement

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 F-2 progenies derived from a cross between A29 (mutant for the three FAD3 genes, 1% 18:3 content) and Tucunare (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 F-2 and F-2:3 segregating populations. In addition, allelic substitutions in the FAD3A locus provide greater variations in 18:3 content than substitutions in the other two loci.

• 出版日期2013-3