Genomic and transcriptome analyses reveal potential contributors to erucic acid biosynthesis in seeds of rapeseed (Brassica napus)
文献类型： 外文期刊
作者： Xu, Shiqi 1 ; Chen, Shan 1 ; Cai, Jialing 1 ; Yan, Tao 1 ; Tu, Mengxin 1 ; Wang, Ruisen 3 ; Hua, Shuijin 2 ; Jiang, Lixi 1 ;
作者机构： 1.Zhejiang Univ, Inst Crop Sci, 866 Yu Hang Tang Rd, Hangzhou 310058, Peoples R China
2.Zhejiang Acad Agr Sci, Desheng Zhong Rd 298, Hangzhou 310022, Peoples R China
3.Jaixing Acad Agr Sci, Jiaxing 314000, Peoples R China
期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.4； 五年影响因子：5.7 ）
ISSN： 0040-5752
年卷期： 2024 年 137 卷 6 期
页码：
收录情况： SCI
摘要： Erucic acid content (EAC) is a crucial trait in rapeseed, with low LEAC oil recognized for its health benefits and high EA oil holding industrial value. Despite its significance, the genomic consequences of intensive LEAC-cultivar selection and the genetic basis underlying EA regulation remain largely unexplored. To address this knowledge gap, we conducted selective signal analyses, genome-wide association studies (GWAS), and transcriptome analyses. Our investigation unveiled the genetic footprints resulting from LEAC selection in germplasm populations, drawing attention to specific loci that contribute to enriching diversity. By integrating GWAS and transcriptome analyses, we identified a set of 23 genes that play a significant role in determining EAC in seeds or are downstream consequences of EA-level alterations. These genes have emerged as promising candidates for elucidating the potential mechanisms governing EAC in rapeseed. To exemplify the findings, we selected specific genes to demonstrate the distribution of single nucleotide polymorphisms and haplotypes associated with different EAC phenotypes. Additionally, we showcased to develop molecular markers distinguishing between LEAC and high EAC genotypes.
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