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    Haplotype variations of major flowering time genes in quinoa unveil their role in the adaptation to different environmental conditions

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    pce.14071.pdf
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    Description:
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    Type
    Article
    Authors
    Patiranage, Dilan S.R.
    Asare, Edward
    Maldonado-Taipe, Nathaly
    Rey, Elodie cc
    Emrani, Nazgol cc
    Tester, Mark A. cc
    Jung, Christian
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Center for Desert Agriculture
    Plant Science
    The Salt Lab
    Date
    2021-05-05
    Embargo End Date
    2022-04-20
    Submitted Date
    2021-01-06
    Permanent link to this record
    http://hdl.handle.net/10754/668957
    
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    Abstract
    Response to photoperiod is of major importance in crop production. It defines the adaptation of plants to local environments. Quinoa is a short day plant which had been domesticated in the Andeans regions. We wanted to understand the adaptation to long-day conditions by studying orthologs of two major flowering time regulators of Arabidopsis, FLOWERING LOCUS T (FT) and CONSTANS (CO) in quinoa accessions with contrasting photoperiod response. By searching the quinoa reference genome sequence, we identified 24 FT and six CO homologs. CqFT genes displayed remarkably different expression patterns between long-day and short-day conditions, whereas the influence of the photoperiod on CqCOL expressions was moderate. Cultivation of 276 quinoa accessions under short-day and long-day conditions revealed great differences in photoperiod sensitivity. After sequencing their genomes, we identified large sequence variations in 12 flowering time genes. We found non-random distribution of haplotypes across accessions from different geographical origins, highlighting the role of CqFT and CqCOL genes in the adaptation to different day-length conditions. We identified five haplotypes causing early flowering under long days. This study provides assets for quinoa breeding because superior haplotypes can be assembled in a predictive breeding approach to produce well-adapted early flowering lines under long-day photoperiods. This article is protected by copyright. All rights reserved.
    Citation
    Patiranage, D. S. R., Asare, E., Maldonado-Taipe, N., Rey, E., Emrani, N., Tester, M., & Jung, C. (2021). Haplotype variations of major flowering time genes in quinoa unveil their role in the adaptation to different environmental conditions. Plant, Cell & Environment. doi:10.1111/pce.14071
    Publisher
    Wiley
    Journal
    Plant, Cell & Environment
    DOI
    10.1111/pce.14071
    PubMed ID
    33878205
    Additional Links
    https://onlinelibrary.wiley.com/doi/10.1111/pce.14071
    ae974a485f413a2113503eed53cd6c53
    10.1111/pce.14071
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Center for Desert Agriculture

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