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Dosage differences in 12-OXOPHYTODIENOATE REDUCTASE genes modulate wheat root growth

Author

Listed:
  • Gilad Gabay

    (University of California)

  • Hanchao Wang

    (University of California
    University of Haifa)

  • Junli Zhang

    (University of California)

  • Jorge I. Moriconi

    (Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
    Universidad Nacional de San Martín (UNSAM))

  • German F. Burguener

    (University of California)

  • Leonardo D. Gualano

    (Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
    Universidad Nacional de San Martín (UNSAM))

  • Tyson Howell

    (University of California)

  • Adam Lukaszewski

    (University of California)

  • Brian Staskawicz

    (University of California)

  • Myeong-Je Cho

    (University of California)

  • Jaclyn Tanaka

    (University of California)

  • Tzion Fahima

    (University of Haifa)

  • Haiyan Ke

    (University of California)

  • Katayoon Dehesh

    (University of California)

  • Guo-Liang Zhang

    (Fudan University)

  • Jin-Ying Gou

    (Fudan University
    China Agricultural University)

  • Mats Hamberg

    (Karolinska Institutet)

  • Guillermo E. Santa-María

    (Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
    Universidad Nacional de San Martín (UNSAM))

  • Jorge Dubcovsky

    (University of California
    Howard Hughes Medical Institute)

Abstract

Wheat, an essential crop for global food security, is well adapted to a wide variety of soils. However, the gene networks shaping different root architectures remain poorly understood. We report here that dosage differences in a cluster of monocot-specific 12-OXOPHYTODIENOATE REDUCTASE genes from subfamily III (OPRIII) modulate key differences in wheat root architecture, which are associated with grain yield under water-limited conditions. Wheat plants with loss-of-function mutations in OPRIII show longer seminal roots, whereas increased OPRIII dosage or transgenic over-expression result in reduced seminal root growth, precocious development of lateral roots and increased jasmonic acid (JA and JA-Ile). Pharmacological inhibition of JA-biosynthesis abolishes root length differences, consistent with a JA-mediated mechanism. Transcriptome analyses of transgenic and wild-type lines show significant enriched JA-biosynthetic and reactive oxygen species (ROS) pathways, which parallel changes in ROS distribution. OPRIII genes provide a useful entry point to engineer root architecture in wheat and other cereals.

Suggested Citation

  • Gilad Gabay & Hanchao Wang & Junli Zhang & Jorge I. Moriconi & German F. Burguener & Leonardo D. Gualano & Tyson Howell & Adam Lukaszewski & Brian Staskawicz & Myeong-Je Cho & Jaclyn Tanaka & Tzion Fa, 2023. "Dosage differences in 12-OXOPHYTODIENOATE REDUCTASE genes modulate wheat root growth," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36248-y
    DOI: 10.1038/s41467-023-36248-y
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    References listed on IDEAS

    as
    1. Carla Galinha & Hugo Hofhuis & Marijn Luijten & Viola Willemsen & Ikram Blilou & Renze Heidstra & Ben Scheres, 2007. "PLETHORA proteins as dose-dependent master regulators of Arabidopsis root development," Nature, Nature, vol. 449(7165), pages 1053-1057, October.
    2. Masashi Yamada & Xinwei Han & Philip N. Benfey, 2020. "RGF1 controls root meristem size through ROS signalling," Nature, Nature, vol. 577(7788), pages 85-88, January.
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