Root trait diversity, molecular marker diversity, and trait-marker associations in a core collection of Lupinus angustifolius.

ABSTRACT: Narrow-leafed lupin (Lupinus angustifolius L.) is the predominant grain legume crop in southern Australia, contributing half of the total grain legume production of Australia. Its yield in Australia is hampered by a range of subsoil constraints. The adaptation of lupin genotypes to subsoil constraints may be improved by selecting for optimal root traits from new and exotic germplasm sources. We assessed root trait diversity and genetic diversity of a core collection of narrow-leafed lupin (111 accessions) using 191 Diversity Arrays Technology (DArT) markers. The genetic relationship among accessions was determined using the admixture model in STRUCTURE. Thirty-eight root-associated traits were characterized, with 21 having coefficient of variation values >0.5. Principal coordinate analysis

SUBMITTER: Chen Y 

PROVIDER: S-EPMC4896361 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature