Geographic Distributions of the Non-responsive Haplotypes A and B of the Ppd-H1 Gene (IMAGE)

Washington University in St. Louis

Geographic Distributions of the Non-responsive Haplotypes A and B of the Ppd-H1 Gene

Caption

The study confirms that ancient barley from central China contains mutations at the Ppd-H1 gene locus that switch off the photoperiod response. It also shows that extant barley landraces planted in China carry the genetic haplotype A, which infers that Chinese barley has a different genetic origin than the haplotype B barley that made its way to northern Europe.

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(Courtesy of <i>PLOS One</i>)

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