USA: New research reveals mutation responsible for disease resistance in cassava

Published 2022년 7월 20일

Tridge summary

Researchers, led by Rebecca Bart at the Danforth Plant Science Center, have identified a genetic mutation that provides resistance to cassava mosaic disease (CMD), a condition that significantly reduces cassava yield. This discovery, published in Nature Communications, could greatly aid cassava production in regions like Africa, India, and Southeast Asia, where CMD is prevalent. The research could also potentially be applied to other crops such as cotton and tomato, which are also targeted by similar viruses. The team plans to further investigate the mechanism of the mutation to understand its stability and sustainability.

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Original content

Groundbreaking research led by Rebecca Bart, PhD, associate member, Nigel Taylor, PhD, associate member, Dorothy King, distinguished investigator, Donald Danforth Plant Science Center, and their collaborators at ETH Zurich, University of California Los Angeles, and the National Crops Resources Research Institute (NaCRRI) in Uganda, has identified a genetic mutation that confers resistance to cassava mosaic disease (CMD). Their findings have significant implications for improving cassava yield and sustaining farmer income in the face of a widespread disease, and their discovery could also shed light on disease resistance in other major crops. This seminal work, Mutations in DNA polymerase δ subunit 1 co-segregate with CMD2-type resistance to cassava mosaic geminiviruses, was recently published in the scientific journal Nature Communications. Farmers in Africa, India, and Southeast Asia – some of the largest cassava-producing regions in the world – too often suffer huge yield losses ...

Source: Hortidaily