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VviPLATZ1 is a major factor that controls female flower morphology determination in grapevine

Author

Listed:
  • Pat Iocco-Corena

    (Locked Bag 2, Waite Campus)

  • Jamila Chaïb

    (Locked Bag 2, Waite Campus
    Limagrain, HM.CLAUSE IBERICA S.A.U.)

  • Laurent Torregrosa

    (University of Montpellier, CIRAD, INRAe, Institut Agro)

  • Don Mackenzie

    (Locked Bag 2, Waite Campus)

  • Mark R. Thomas

    (Locked Bag 2, Waite Campus)

  • Harley M. Smith

    (Locked Bag 2, Waite Campus)

Abstract

Plant genetic sex determinants that mediate the transition to dioecy are predicted to be diverse, as this type of mating system independently evolved multiple times in angiosperms. Wild Vitis species are dioecious with individuals producing morphologically distinct female or male flowers; whereas, modern domesticated Vitis vinifera cultivars form hermaphrodite flowers capable of self-pollination. Here, we identify the VviPLATZ1 transcription factor as a key candidate female flower morphology factor that localizes to the Vitis SEX-DETERMINING REGION. The expression pattern of this gene correlates with the formation reflex stamens, a prominent morphological phenotype of female flowers. After generating CRISPR/Cas9 gene-edited alleles in a hermaphrodite genotype, phenotype analysis shows that individual homozygous lines produce flowers with reflex stamens. Taken together, our results demonstrate that loss of VviPLATZ1 function is a major factor that controls female flower morphology in Vitis.

Suggested Citation

  • Pat Iocco-Corena & Jamila Chaïb & Laurent Torregrosa & Don Mackenzie & Mark R. Thomas & Harley M. Smith, 2021. "VviPLATZ1 is a major factor that controls female flower morphology determination in grapevine," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-27259-8
    DOI: 10.1038/s41467-021-27259-8
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    1. Alex Harkess & Jinsong Zhou & Chunyan Xu & John E. Bowers & Ron Hulst & Saravanaraj Ayyampalayam & Francesco Mercati & Paolo Riccardi & Michael R. McKain & Atul Kakrana & Haibao Tang & Jeremy Ray & Jo, 2017. "The asparagus genome sheds light on the origin and evolution of a young Y chromosome," Nature Communications, Nature, vol. 8(1), pages 1-10, December.
    2. Mélanie Massonnet & Noé Cochetel & Andrea Minio & Amanda M. Vondras & Jerry Lin & Aline Muyle & Jadran F. Garcia & Yongfeng Zhou & Massimo Delledonne & Summaira Riaz & Rosa Figueroa-Balderas & Brandon, 2020. "The genetic basis of sex determination in grapes," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
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