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Subtelomeric 5-enolpyruvylshikimate-3-phosphate synthase copy number variation confers glyphosate resistance in Eleusine indica

Author

Listed:
  • Chun Zhang

    (Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Institute of Plant Protection, Guangdong Academy of Agricultural Sciences)

  • Nicholas A. Johnson

    (Michigan State University)

  • Nathan Hall

    (Michigan State University)

  • Xingshan Tian

    (Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Institute of Plant Protection, Guangdong Academy of Agricultural Sciences)

  • Qin Yu

    (University of Western Australia (UWA))

  • Eric L. Patterson

    (Michigan State University)

Abstract

Genomic structural variation (SV) has profound effects on organismal evolution; often serving as a source of novel genetic variation. Gene copy number variation (CNV), one type of SV, has repeatedly been associated with adaptive evolution in eukaryotes, especially with environmental stress. Resistance to the widely used herbicide, glyphosate, has evolved through target-site CNV in many weedy plant species, including the economically important grass, Eleusine indica (goosegrass); however, the origin and mechanism of these CNVs remain elusive in many weed species due to limited genetic and genomic resources. To study this CNV in goosegrass, we present high-quality reference genomes for glyphosate-susceptible and -resistant goosegrass lines and fine-assembles of the duplication of glyphosate’s target site gene 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). We reveal a unique rearrangement of EPSPS involving chromosome subtelomeres. This discovery adds to the limited knowledge of the importance of subtelomeres as genetic variation generators and provides another unique example for herbicide resistance evolution.

Suggested Citation

  • Chun Zhang & Nicholas A. Johnson & Nathan Hall & Xingshan Tian & Qin Yu & Eric L. Patterson, 2023. "Subtelomeric 5-enolpyruvylshikimate-3-phosphate synthase copy number variation confers glyphosate resistance in Eleusine indica," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40407-6
    DOI: 10.1038/s41467-023-40407-6
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    References listed on IDEAS

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    1. Yan Li & Aymeric Leveau & Qiang Zhao & Qi Feng & Hengyun Lu & Jiashun Miao & Zheyong Xue & Azahara C. Martin & Eva Wegel & Jing Wang & Anastasia Orme & Maria-Dolores Rey & Miroslava Karafiátová & Jan , 2021. "Subtelomeric assembly of a multi-gene pathway for antimicrobial defense compounds in cereals," Nature Communications, Nature, vol. 12(1), pages 1-13, December.
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