Laboratory Personnel

The USDA Central Small Grain Genotyping Lab, September 2018.
Front row, left to right: Dr. Paul St. Amand, Dr. Guihua Bai, Dr. Hui Chen, Dr. Lanfei Zhao, and Yuzhou 'Bruce' Xu.
Middle row: Yaoguang Li, Ruolin Bian, Dr. Zhao Liu, Zihui Liu, and Abdulrahman Hashimi.
Back row: Yunfeng Xu, Dr. Amy Bernardo, Nida Ghori, Umara Rana, and Madison Tunnell.


  • Dr. Guihua Bai

    Dr. Guihua Bai
    Principal Investigator

  • Dr. Paul St. Amand

    Dr. Paul St. Amand
    USDA Research Geneticist
    Manages the USDA genotyping lab, analyzes genotyping samples, and provides genotyping training to visitors and new scientists.

  • Dr. Amy Bernardo

    Dr. Amy Bernardo
    Research Associate
    Develops markers for disease resistance genes and conducts DNA and RNA sequencing using our Ion Proton.

  • Madison Tunnell

    Madison Tunnell
    Biological Science Aid
    Performs and teaches DNA extractions, genotyping, general housekeeping, and reagent preparation.

Visiting Scientists

Postdoctoral Scientists

  • Dr. Zhao Liu

    Mapping QTL and developing diagnostic markers for agronomically important traits.

  • Dr. Hui Chen

    Hui Chen
    Molecular and genetic mechanisms of wheat resistance to diseases and pre-harvest sprouting (PHS) based on next-generation sequencing technologies.

Graduate Students

  • Ruolin Bian

    Characterization of a novel wheat FHB resistance gene from a Jagger mutant.

  • Nida Ghori

    Improving wheat germplasm for changing environments via next generation sequencing.

  • Yuzhou 'Bruce' Xu

    Cloning FHB resistance genes in wheat using genetic and bioinformatic approaches.

  • Umara Rana

    Umara Rana
    Mappping Fusarium head blight resistance QTL in wheat.

  • Abdulrahman Hashimi

    Abdulrahman Hashimi
    Mappping Fusarium head blight resistance QTL in wheat cultivar Lyman.

  • Yaoguang Li

    Studying the interaction of plant height genes in wheat.

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