Haplotype variations of major flowering time genes in quinoa unveil their role in the adaptation to different environmental conditions
Type
ArticleAuthors
Patiranage, Dilan S.R.Asare, Edward
Maldonado-Taipe, Nathaly
Rey, Elodie

Emrani, Nazgol

Tester, Mark A.

Jung, Christian
KAUST Department
Biological and Environmental Science and Engineering (BESE) DivisionCenter for Desert Agriculture
Plant Science
The Salt Lab
Date
2021-05-05Embargo End Date
2022-04-20Submitted Date
2021-01-06Permanent link to this record
http://hdl.handle.net/10754/668957
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Show full item recordAbstract
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.14071Publisher
WileyJournal
Plant, Cell & EnvironmentPubMed ID
33878205Additional Links
https://onlinelibrary.wiley.com/doi/10.1111/pce.14071ae974a485f413a2113503eed53cd6c53
10.1111/pce.14071
Scopus Count
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