AI Article Synopsis
- Flowering time in rapeseed is important for yield, oil quality, and plant maturity, driving research into its genetic regulation.
- A genome-wide association study identified 46 haplotype regions related to flowering time, with 28 overlapping known quantitative trait loci.
- Key genes (-A02, -A10, -A09) showed variations linked to flowering time, and co-expression analysis revealed connections with various flowering pathway genes, suggesting a complex regulatory network for breeding early maturing rapeseed varieties.
Article Abstract
Unlabelled: Flowering time is a crucial determinant of both the yield and oil quality of rapeseed as well as a key indicator of plant maturity. We performed a genome-wide association study and transcriptome analysis to identify key genes/loci regulating flowering time in L. Forty-six haplotype regions harboring candidate genes were determined to be significantly associated with flowering time, and 28 of these haplotype regions overlapped with previously reported quantitative trait loci. A further investigation of these haplotype regions revealed nucleotide variations in the genes -A02, -A10, and -A09 that correlated with phenotypic variations in flowering time. Furthermore, the co-expression network analysis indicated that -A02 is directly linked to -A10 and -A09, in a subnetwork and also associated with 13 vernalization, 31 photoperiod, 33 autonomous pathway, and 10 gibberellin pathway genes, forming a potential network regulating flowering time in rapeseed. These results provide valuable haplotype markers for the breeding of early maturing rapeseed varieties.
Supplementary Information: The online version contains supplementary material available at 10.1007/s11032-024-01479-4.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11637149 | PMC |
| http://dx.doi.org/10.1007/s11032-024-01479-4 | DOI Listing |
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