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Molecular identification of the wheat male fertility gene Ms1 and its prospects for hybrid breeding

Author

Listed:
  • Elise J. Tucker

    (University of Adelaide)

  • Ute Baumann

    (University of Adelaide)

  • Allan Kouidri

    (University of Adelaide)

  • Radoslaw Suchecki

    (University of Adelaide)

  • Mathieu Baes

    (University of Adelaide)

  • Melissa Garcia

    (University of Adelaide)

  • Takashi Okada

    (University of Adelaide)

  • Chongmei Dong

    (University of Sydney)

  • Yongzhong Wu

    (DuPont Pioneer Hi-Bred International Inc.)

  • Ajay Sandhu

    (DuPont Pioneer Hi-Bred International Inc.)

  • Manjit Singh

    (DuPont Pioneer Hi-Bred International Inc.)

  • Peter Langridge

    (University of Adelaide)

  • Petra Wolters

    (DuPont Pioneer Hi-Bred International Inc.)

  • Marc C. Albertsen

    (DuPont Pioneer Hi-Bred International Inc.)

  • A. Mark Cigan

    (DuPont Pioneer Hi-Bred International Inc.)

  • Ryan Whitford

    (University of Adelaide)

Abstract

The current rate of yield gain in crops is insufficient to meet the predicted demands. Capturing the yield boost from heterosis is one of the few technologies that offers rapid gain. Hybrids are widely used for cereals, maize and rice, but it has been a challenge to develop a viable hybrid system for bread wheat due to the wheat genome complexity, which is both large and hexaploid. Wheat is our most widely grown crop providing 20% of the calories for humans. Here, we describe the identification of Ms1, a gene proposed for use in large-scale, low-cost production of male-sterile (ms) female lines necessary for hybrid wheat seed production. We show that Ms1 completely restores fertility to ms1d, and encodes a glycosylphosphatidylinositol-anchored lipid transfer protein, necessary for pollen exine development. This represents a key step towards developing a robust hybridization platform in wheat.

Suggested Citation

  • Elise J. Tucker & Ute Baumann & Allan Kouidri & Radoslaw Suchecki & Mathieu Baes & Melissa Garcia & Takashi Okada & Chongmei Dong & Yongzhong Wu & Ajay Sandhu & Manjit Singh & Peter Langridge & Petra , 2017. "Molecular identification of the wheat male fertility gene Ms1 and its prospects for hybrid breeding," Nature Communications, Nature, vol. 8(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00945-2
    DOI: 10.1038/s41467-017-00945-2
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