数字农科院2.0

Genome-wide association study to dissect the genetic architecture of bolting-related traits in carrot (Daucus carota)

文献类型： 外文期刊

作者： Xiaoping Kong;Jie Wu;Xiangping Yan;Feiyun Zhuang;Hongwei Zhou;Shaonan Xu;Chenggang Ou

作者机构：

关键词： Bolting trait;Candidate gene;Daucus carota;GWAS;SNP marker

期刊名称： Scientific Reports

ISSN：

年卷期： 2025 年 15 卷 1 期

页码：

收录情况： SCIE（2025版）

摘要： As a crucial root vegetable, the phenomenon of bolting and flowering presents a significant challenge to the commercial value of carrot. However, the genetic mechanism of carrot bolting remains to be fully elucidated. In this study, we conducted a two-year cultivation experiment with a population of 240 carrots to examine traits associated with bolting. We conducted whole-genome sequencing on these carrots and subsequently performed population structure analysis, as well as genome-wide association studies (GWAS). A total of nine single nucleotide polymorphism (SNP) loci were identified across diverse environmental conditions that exhibited significant associations with bolting speed and other traits. Furthermore, within 93 candidate genes identified, the RING-domain zinc-finger protein LOC108205243 was determined to play a significant role in the regulation of bolting traits. The SNPs and candidate genes identified in this research may serve as molecular markers for bolting traits, thereby offering essential resources for genetic engineering breeding efforts aimed at managing bolting in carrots.

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