5e3c3aaf4268eb00017e9c42
612 Vietnamese Rice Genomes
Vietnam is experiencing changes in the rainfall and temperature patterns which are likely to have serious impacts on rice cultivation and productivity. There is an urgent need to identify loci that can be exploited to breed a new generation of sustainable rice. Rice varieties, which have been bred within Vietnam are adapted to the range of ecosystem and a potential source of novel variation, but so far these varieties have been underrepresented in large scale Asian diversity studies.  We have used our panel of 612 Vietnamese varieties to describe four Japonica and five Indica subpopulations which are adapted to a range of ecosystems found throughout Vietnam. The I5 subpopulation appears to be distinct from known Asian rice subpopulations.  We have carried out a genome-wide association study and identified region of selection for all the subpopulations. These regions are a potential source of novel loci for national and international breeding programs.
Vietnam is experiencing changes in the rainfall and temperature patterns which are likely to have serious impacts on rice cultivation and productivity. There is an urgent need to identify loci that can be exploited to breed a new generation of sustainable rice. Rice varieties, which have been bred within Vietnam are adapted to the range of ecosystem and a potential source of novel variation, but so far these varieties have been underrepresented in large scale Asian diversity studies.  We have used our panel of 612 Vietnamese varieties to describe four Japonica and five Indica subpopulations which are adapted to a range of ecosystems found throughout Vietnam. The I5 subpopulation appears to be distinct from known Asian rice subpopulations.  We have carried out a genome-wide association study and identified region of selection for all the subpopulations. These regions are a potential source of novel loci for national and international breeding programs.