Farmers without borders-genetic structuring in century old barley (Hordeum vulgare).

ABSTRACT: The geographic distribution of genetic diversity can reveal the evolutionary history of a species. For crop plants, phylogeographic patterns also indicate how seed has been exchanged and spread in agrarian communities. Such patterns are, however, easily blurred by the intense seed trade, plant improvement and even genebank conservation during the twentieth century, and discerning fine-scale phylogeographic patterns is thus particularly challenging. Using historical crop specimens, these problems are circumvented and we show here how high-throughput genotyping of historical nineteenth century crop specimens can reveal detailed geographic population structure. Thirty-one historical and nine extant accessions of North European landrace barley (Hordeum vulgare L.), in total 231 individuals, we

SUBMITTER: Forsberg NE 

PROVIDER: S-EPMC4815629 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature