Anthocyanin biosynthetic genes in Brassica rapa

BMC Genomics

Xiaowu Wang¹  Jianli Liang¹  Shuning Zheng¹  Bo Liu¹  Jian Wu¹  Feng Cheng¹  Ning Guo¹ 

[1] Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Zhongguancun Nandajie No.12, Haidian district, Beijing 100081, P. R. China

关键词: Cruciferae;    Brassica rapa;    Whole genome duplication;    Anthocyanin biosynthetic genes;    Comparative genomics;   

Others  :  1216725
DOI  :  10.1186/1471-2164-15-426

 received in 2013-12-20, accepted in 2014-05-27,  发布年份 2014

【 摘 要 】

Background

Anthocyanins are a group of flavonoid compounds. As a group of important secondary metabolites, they perform several key biological functions in plants. Anthocyanins also play beneficial health roles as potentially protective factors against cancer and heart disease. To elucidate the anthocyanin biosynthetic pathway in Brassica rapa, we conducted comparative genomic analyses between Arabidopsis thaliana and B. rapa on a genome-wide level.

Results

In total, we identified 73 genes in B. rapa as orthologs of 41 anthocyanin biosynthetic genes in A. thaliana. In B. rapa, the anthocyanin biosynthetic genes (ABGs) have expanded and most genes exist in more than one copy. The anthocyanin biosynthetic structural genes have expanded through whole genome and tandem duplication in B. rapa. More structural genes located upstream of the anthocyanin biosynthetic pathway have been retained than downstream. More negative regulatory genes are retained in the anthocyanin biosynthesis regulatory system of B. rapa.

Conclusions

These results will promote an understanding of the genetic mechanism of anthocyanin biosynthesis, as well as help the improvement of the nutritional quality of B. rapa through the breeding of high anthocyanin content varieties.

【 授权许可】

   
2014 Guo et al.; licensee BioMed Central Ltd.

【 图 表 】

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