Journal article
Allelic Variation of BnaFTA2 and BnaFTC6 Is Associated With Flowering Time and Seasonal Crop Type in Rapeseed ( Brassica napus L.)
Plant, cell and environment, Vol.48(1), pp.852-865
01/2025
PMID: 39360620
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Abstract
Different ecological types of rapeseed (Brassica napus L.), including winter, spring, and semi-winter cultivars, exhibit varying flowering times and cannot be planted in the same cultivation areas. FLOWERING LOCUS T (FT) plays a key role in regulating flowering. In allotetraploid B. napus six copies of FT (BnaFT) have been reported. However, there is uncertainty about how the translated products of each paralog, as well as cis-allelic variations at each locus, contribute functionally to flowering time and define specific crop types. In this study, we confirm that BnaFT exhibit distinct expression patterns in different crop types of rapeseed. Using the CRISPR/Cas9 gene editing system, we provide functional evidence that the mutants between Bnaft paralogues affects the regulation of flowering time. Furthermore, we identify a new haplotype of BnaFT.A2 that is associated with early flowering time, although this appears necessary but not sufficient to confer a spring type phenotype. Three haplotypes of BnaFT.C6 were further identified and associated with both flowering time and crop types. We speculate that variations in both BnaFT.A2 and BnaFT.C6 may have undergone diversifying selection during the divergence of seasonal crop types in rapeseed.
Details
- Title
- Allelic Variation of BnaFTA2 and BnaFTC6 Is Associated With Flowering Time and Seasonal Crop Type in Rapeseed ( Brassica napus L.)
- Creators
- Ming Wan - Huazhong Agricultural UniversityDawei Zhao - Huazhong Agricultural UniversityShengzhe Lin - Huazhong Agricultural UniversityPengfei Wang - Huazhong Agricultural UniversityBaoling Liang - Huazhong Agricultural UniversityQingdong Jin - Huazhong Agricultural UniversityYushun Jiao - Huazhong Agricultural UniversityYixian Song - Huazhong Agricultural UniversityXianhong Ge - Huazhong Agricultural UniversityGraham J. King - Southern Cross UniversityGuangsheng Yang - Huazhong Agricultural UniversityJing Wang - Huazhong Agricultural UniversityDengfeng Hong - Huazhong Agricultural University
- Publication Details
- Plant, cell and environment, Vol.48(1), pp.852-865
- Publisher
- John Wiley & Sons Ltd.
- Number of pages
- 14
- Grant note
- This work was supported by the earmarked fund for CARS-12 and the Key Research & Development Programme of Hubei Province (2022BBA0038, 2022BBE001).
- Identifiers
- 991013285435202368
- Copyright
- © 2024 John Wiley & Sons Ltd.
- Academic Unit
- Office of the Vice Chancellor; Faculty of Science and Engineering; Science
- Language
- English
- Resource Type
- Journal article