Gene expression analysis of bud and leaf color in tea
文献类型: 外文期刊
第一作者: Wei, Kang
作者: Wei, Kang;Zhang, Yazhen;Wu, Liyun;Li, Hailin;Ruan, Li;Bai, Peixian;Zhang, Chengcai;Zhang, Fen;Xu, Liyi;Wang, Liyuan;Cheng, Hao
作者机构:
关键词: Purple soot tea;Camellia sinensis;Anthocyanins;MYB transcriptional factor;RNA-Seq analysis
期刊名称:PLANT PHYSIOLOGY AND BIOCHEMISTRY ( 影响因子:4.27; 五年影响因子:4.816 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Purple shoot tea attributing to the high anthocyanin accumulation is of great interest for its wide health benefits. To better understand potential mechanisms involved in purple buds and leaves formation in tea plants, we performed transcriptome analysis of six green or purple shoot tea individuals from a F1 population using the Illumina sequencing method. Totally 292 million RNA-Seq reads were obtained and assembled into 112,233 unigenes, with an average length of 759 bp and an N50 of 1081 bp. Moreover, totally 2193 unigenes showed significant differences in expression levels between green and purple tea samples, with 1143 up- and 1050 down-regulated in the purple teas. Further real time PCR analysis confirmed RNA-Seq results. Our study identified 28 differentially expressed transcriptional factors and A CsMYB gene was found to be highly similar to AtPAP1 in Arabidopsis. Further analysis of differentially expressed genes involved in anthocyanin biosynthesis and transportation showed that the late biosynthetic genes and genes involved in anthocyanin transportation were largely affected but the early biosynthetic genes were less or none affected. Overall, the identification of a large number of differentially expressed genes offers a global view of the potential mechanisms associated with purple buds and leaves formation, which will facilitate molecular breeding in tea plants. (C) 2016 Elsevier Masson SAS. All rights reserved.
分类号: Q945`Q946
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