| Info. | Vol.4 - No.2 (2010.06.20) |
|---|---|
| Title | Genetic analysis of gene expression for pigmentation in Chinese cabbage (Brassica rapa) |
| Authors | ChangKug Kim1 , SungHan Park1 , Shoshi Kikuchi2 , SooJin Kwon3 , Suhyoung Park4 , UngHan Yoon1 ,DongSuk Park1 , YoungJoo Seol1 , JangHo Hahn1 , SooChul Park1 & DongHern Kim5 |
| Institutions | 1Genomics Division, National Academy of Agricultural Science
(NAAS), Rural Development Administration (RDA), Suwon 441-707, Korea 2Division of Genome and Biodiversity Research, National Institute of Agrobiological Sciences (NIAS), Tsukuba, Ibaraki 305-8602, Japan 3Department of Genetics, University of Georgia (UGA), Athens, GA 30602, USA 4Vegetable Science Division, National Institute of Horticultural & Herbal Science (NIHHS), Suwon 440-706, Korea 5Bio-crop Division, National Academy of Agricultural Science (NAAS), Suwon 441-707, Korea |
| Abstract | Anthocyanins are a major class of flavonoids that are produced in the tissues of many plant species in response to environmental signals. The pigmentation of Chinese cabbage (Brassica rapa) was analyzed using newly developed 300K Brassica rapa microarrays. The significantly expressed genes were analyzed by clusters of orthologous groups (COGs) and hypergeometric analyses for transcription factors associated with anthocyanin pigmentation. The candidate genes were classified into 11 groups that exhibited functionally diverse transcription factor activity involved in anthocyanin-based pigmentation. Thirty-eight unknown genes were identified that potentially play a role in anthocyanin biosynthesis. Three of these unknown genes differed dramatically among cabbage leaves with yellow, green, or red pigmentation. These three genes may play a regulatory role in the anthocyanin production process or may be related to anthocyanin metabolism during flavonoid biosynthesis. These results show functional diversity of transcription factor families and that the biological functions of the anthocyanin-related transcription factors may be activated in a pigmentation signaling pathway in Chinese cabbage (Brassica rapa). |
| Keyword | Pigmentation, Anthocyanin, Chinese cabbage, Brassica rapa, Transcription factor |
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