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BRIEF RESEARCH REPORT article

Front. Plant Sci.
Sec. Plant Breeding
Volume 15 - 2024 | doi: 10.3389/fpls.2024.1525620

Improving resistance to lepidopteran pests and herbicide using Sanming dominant genic male sterile (S-DGMS) rice (Oryza sativa L.)

Provisionally accepted
Zhen Li Zhen Li Xu Liu Xu Liu Hua Zhang Hua Zhang Pingbo Li Pingbo Li *Fangyin Yao Fangyin Yao
  • Institute of Wetland Agriculture and Ecology, Shandong Academy of Agricultural Sciences, Jinan, Shandong Province, China

The final, formatted version of the article will be published soon.

    In order to improve both the resistance to lepidopteran pests and resistance to herbicide imazethapyr of mainstay japonica varieties in Huang-Huai rice region, the Sanming dominant genic male sterile (S-DGMS) rice was used as a platform to facilitate the pyramiding of functional genes and the replacement of genomic background. Twelve novel lines were developed, each carrying a crystal toxin gene conferring resistance to lepidopteran pests and the allele ALS 627N conferring resistance to herbicide imazethapyr in the background of a mainstay japonica variety. Genomic background of twelve novel lines was examined using 48 specified molecular markers, and each line carried less than two polymorphic markers relative to the corresponding mainstay variety. All twelve lines displayed high resistance to lepidopteran pests and the herbicide imazethapyr. The major agronomic traits of twelve lines showed no difference relative to the responding mainstay variety under spraying of pesticide. The popularization of the twelve japonica lines could facilitate the reduced use of pesticide and highly efficient control of weed and weedy rice in the future, thus promoting the development of japonica rice production. Therefore, S-DGMS rice could be a powerful tool in genetic improvement of target traits in rice.

    Keywords: S-DGMS rice, Lepidopteran pests, crystal toxin genes, Imazethapyr, ALS, genetic improvement

    Received: 10 Nov 2024; Accepted: 25 Nov 2024.

    Copyright: © 2024 Li, Liu, Zhang, Li and Yao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Pingbo Li, Institute of Wetland Agriculture and Ecology, Shandong Academy of Agricultural Sciences, Jinan, Shandong Province, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.