Journalartikel

Integrative analysis of GWAS and transcriptome to reveal novel loci regulation flowering time in semi-winter rapeseed


AutorenlisteHuang, Luyao; Min, Yao; Schiessl, Sarah; Xiong, Xinghua; Jan, Habib U.; He, Xin; Qian, Wei; Guan, Chunyun; Snowdon, Rod J.; Hua, Wei; Guan, Mei; Qian, Lunwen

Jahr der Veröffentlichung2021

ZeitschriftPlant Science: An international journal of experimental plant biology

Bandnummer310

ISSN0168-9452

eISSN1873-2259

DOI Linkhttps://doi.org/10.1016/j.plantsci.2021.110980

VerlagElsevier


Abstract
Flowering is an important turning point from vegetative growth to reproductive growth, and vernalization is an essential condition for the flowering of annual winter plants. To investigate the genetic architecture of flowering time in rapeseed, we used the 60 K Brassica Infinium SNP array to perform a genome-wide analysis of haplotype blocks associated with flowering time in 203 Chinese semi-winter rapeseed inbred lines. Twenty-one haplotype regions carrying one or more candidate genes showed a significant association with flowering time. Interestingly, we detected a SNP (Bn-scaff_22728_1-p285715) located in exon 3 of the BnVIN3-C03 gene that showed a significant association with flowering time on chromosome C03. Based on the SNP alleles A and G, two groups of accessions with early and late flowering time phenotypes were selected, respectively, and PCR amplification and gene expression analysis were combined to reveal the structural variation of the BnVIN3-C03 gene that affected flowering time. Moreover, we found that BnVIN3-C03 inhibited the expression of BnFLC-A02, BnFLC-A03.1, BnFLC-A10 and BnFLC-C03.1, thus modulating the flowering time of Brassica napus. This result provides insight into the genetic improvement of flowering time in B. napus.



Zitierstile

Harvard-ZitierstilHuang, L., Min, Y., Schiessl, S., Xiong, X., Jan, H., He, X., et al. (2021) Integrative analysis of GWAS and transcriptome to reveal novel loci regulation flowering time in semi-winter rapeseed, Plant Science: An international journal of experimental plant biology, 310, Article 110980. https://doi.org/10.1016/j.plantsci.2021.110980

APA-ZitierstilHuang, L., Min, Y., Schiessl, S., Xiong, X., Jan, H., He, X., Qian, W., Guan, C., Snowdon, R., Hua, W., Guan, M., & Qian, L. (2021). Integrative analysis of GWAS and transcriptome to reveal novel loci regulation flowering time in semi-winter rapeseed. Plant Science: An international journal of experimental plant biology. 310, Article 110980. https://doi.org/10.1016/j.plantsci.2021.110980


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