Grape Breeders No Longer Flying Blind

Wines & Vines, March 2018 issue
By Tim Martinson

“For grape breeders and geneticists, the previous trickle of scarce genetic knowledge has turned into a flood of DNA sequence information. For the first time, there is enough sequence information to allow geneticists to make a detailed map of the 19 pairs of chromosomes and 500 million base pairs in the grape genome. This map enables them to locate genetic markers (short DNA sequences) associated with single gene loci, or what they call Quantitative Trait Loci (QTLs).” Read full article here

A vine susceptible to powdery mildew (left) and a resistant vine (right)

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