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Jizeng Jia, PhD

Jizeng Jia, PhD

Jizeng Jia, PhD, from the Institute of Crop Sciences, Chinese Academy of Agriculture Science, Beijing, discusses the limitations of current technologies and how they were overcome to develop the highest density wheat array commercially available.

Wheat research has lagged behind other sequenced crops, such as rice, largely due to the lack of genomic sequence and fine mapping information. Current platforms are limiting due to genotyping difficulties resulting from multi-copy locations of most SNP markers, low polymorphism in wheat, and insufficient numbers of usable markers. This led Dr. Jia to work with the Expert Design Program at Affymetrix and develop a wheat screening array that includes markers from the D genome. This wheat array has opened the door to haplotype research in polyploid wheat, and it serves as an invaluable resource for evaluating genetic diversity and investigating the genetic basis of trait variations in wheat.

With the high-density 660K wheat genotyping array, the wheat research community can push the studies of wheat genomics, genetic diversity detection and HapMap development, gene cloning, and breeding.
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  • Scientist Spotlight (pdf, 286 KB) The development of a powerful tool for evaluating genetic diversity and investigating the genetic basis of trait variations in polyploid wheat

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