Artificial selection causes significant linkage disequilibrium among multiple unlinked genes in Australian wheat.

ABSTRACT: Australia has one of the oldest modern wheat breeding programs worldwide although the crop was first introduced to the country in 1788. Breeders selected wheat with high adaptation to different Australian climates, while ensuring satisfactory yield and quality. This artificial selection left distinct genomic signatures that can be used to retrospectively understand breeding targets, and to detect economically important alleles. To study the effect of artificial selection on modern cultivars and cultivars released in different Australian states, we genotyped 482 Australian cultivars representing the history of wheat breeding in Australia since 1840. Computer simulation showed that 86 genomic regions were significantly affected by artificial selection. Characterization of 18 major genes know

SUBMITTER: Joukhadar R 

PROVIDER: S-EPMC6708422 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature