More
    AgronomyDiseasesNew Late Blight Resistance Gene Discovered

    New Late Blight Resistance Gene Discovered

    -

    Researchers have found a diploid wild potato with a high resistance to the pathogen which causes late blight in potatoes, a news release from the Chinese Academy of Agricultural Sciences and the James Hutton institute published on Sept. 21, says.

    Late blight is caused Phytophthorainfestans. In the diploid potato researchers found novel R genes using dRenSeq analysis, further transcriptional analysis identified the essential role of multiple signal transduction pathways and secondary metabolic pathways in plant immunity in the wild potato.

    “We found that the observed resistance in this wild potato was due to previously uncharacterized novel resistance genes,” Guangcun Li, one of the scientists involved in the study, explains in the release. “We also discovered that photosynthesis was inhibited to promote the immune response.”

    It is a new discovery that photosynthetic inhibition exists in potatoes, the release notes. However, the scientists also found the physical barrier of leaves was very important.

    “The leaves of this wild potato are hard and show immunity when inoculated with P. infestansat low concentration,” says Li.

    This research provides new resources for potato late blight resistance breeding and a new theoretical basis for disease resistance breeding of potato. To learn more, read “New Findings on the Resistance Mechanism of an Elite Diploid Wild Potato Species JAM1-4 in Response to a Super Race Strain of Phytophthora infestans,” published in the August issue of Phytopathology.

    Trending This Week

    Potato field at Borden-Carleton, P.E.I.

    The P.E.I. Potato Industry is Edging Back to Normal

    0
    After a year of upheaval following a potato wart discovery, P.E.I. has worked hard to regain their spud status. More than a year after potato...
    Centre pivot in P.E.I.

    P.E.I. Potato Board Calls on Feds to Listen to International Experts Report

    0
    The Prince Edward Island Potato Board is calling on the federal government to listen to the findings from an international panel of experts who...
    Freshly emerged potato field

    Fortified Stimulate Yield Enhancer’s (aka Stimulate) Offers 40.4 cwt/acre Marketable Yield and Consistent Benefits

    Drumroll please…. The results are in from this year’s trials and – at a whopping 12.6 to 1 (!!) return on investment – Stimulate’s results...
    Manitoba Potato Production Days 2023 stage

    MPPD Celebrates 50 Years of Potato Memories

    0
    Manitoba Potato Production Days (MPPD) kicked off its 50th anniversary celebration with an opening night reception followed by a full day of presentations, demonstrations...
    Potato field being sprayed

    PMRA Potato Products Review Refresher

    0
    With the PMRA having reviewed numerous potato products, it’s important to keep track of what you can and can’t use anymore. Over the past few...