Genetic Diversity, Population Structure and Ancestral Origin of Australian Wheat.

ABSTRACT: Since the introduction of wheat into Australia by the First Fleet settlers, germplasm from different geographical origins has been used to adapt wheat to the Australian climate through selection and breeding. In this paper, we used 482 cultivars, representing the breeding history of bread wheat in Australia since 1840, to characterize their diversity and population structure and to define the geographical ancestral background of Australian wheat germplasm. This was achieved by comparing them to a global wheat collection using in-silico chromosome painting based on SNP genotyping. The global collection involved 2,335 wheat accessions which was divided into 23 different geographical subpopulations. However, the whole set was reduced to 1,544 accessions to increase the differentiation

SUBMITTER: Joukhadar R 

PROVIDER: S-EPMC5733070 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature