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Comparative genomic and phylogenetic analysis of anthocyanin biosynthetic genes in Arabidopsis thaliana and Brassica oleracea
REN Jie,LIU Zhiyong,TAN Chong,ZHANG Yun,FENG Hui *
Department of Horticulture, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
*Correspondence author
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Funding: National Natural Science Foundation of China （No.31272157, 31201625）, National Research Foundation for the Doctoral Program of Higher Education of China（No.2012210310006）
Opened online:27 May 2016
Accepted by: none
Citation: REN Jie,LIU Zhiyong,TAN Chong.Comparative genomic and phylogenetic analysis of anthocyanin biosynthetic genes in Arabidopsis thaliana and Brassica oleracea[OL]. [27 May 2016] http://en.paper.edu.cn/en_releasepaper/content/4688557
 
 
Background: Anthocyanins are water-soluble natural pigments that are widely distributed in plants. Numerous studies of these flavonoids, which play many important physiological roles, have been performed in the model plant Arabidopsis thaliana. However, no previous studies have focused on anthocyanin biosynthetic pathways in Brassica oleracea. We therefore performed a comparative genomic and phylogenetic analysis of anthocyanin biosynthetic genes in B. oleracea and A. thaliana to explore this pathway in B. oleracea. Results: B. oleracea contains 113 anthocyanin biosynthesis genes, which are orthologs of 62 AtABGs. More than one copy of these genes are present in B. oleracea compared to A. thaliana. Whole genome duplication and tandem duplication have affected these structural and regulatory genes in B. oleracea. More structural genes encode proteins that function upstream of the anthocyanin biosynthetic pathway than downstream. Conclusions: This systematic study of anthocyanin biosynthetic genes in B. oleracea will help elucidate the genetic mechanism of anthocyanin biosynthesis in B. oleracea and perhaps plants in general. The results may also be useful for breeding high-anthocyanin plants. Results: B. oleracea contains 113 anthocyanin biosynthesis genes, which are orthologs of 62 AtABGs. More than one copy of these genes are present in B. oleracea compared to A. thaliana. Whole genome duplication and tandem duplication have affected these structural and regulatory genes in B. oleracea. More structural genes encode proteins that function upstream of the anthocyanin biosynthetic pathway than downstream. Conclusions: This systematic study of anthocyanin biosynthetic genes in B. oleracea will help elucidate the genetic mechanism of anthocyanin biosynthesis in B. oleracea and perhaps plants in general. The results may also be useful for breeding high-anthocyanin plants.
Keywords:Anthocyanin biosynthetic genes; comparative genomics; phylogenetic analysis ; Brassica oleracea
 
 
 

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