Comparative analysis of alternative splicing, alternative polyadenylation and the expression of the two KIN genes from cytoplasmic male sterility cabbage (Brassica oleracea L. var. capitata L.)

文献类型： 外文期刊

第一作者： Tao, Peng

作者： Tao, Peng;Huang, Xiaoyun;Li, Biyuan;Wang, Wuhong;Yue, Zhichen;Lei, Juanli;Zhong, Xinmin;Huang, Xiaoyun

作者机构：

关键词： KIN;Alternative splicing;Alternative polyadenylation;Gene expression;Brassica oleracea L var;capitata L

期刊名称：MOLECULAR GENETICS AND GENOMICS （ 影响因子：3.291； 五年影响因子：3.257 ）

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收录情况： SCI

摘要： The KIN genes are crucial members of the cold-regulated gene family. They play exclusive roles during the developmental processes of many organs and respond to various abiotic stresses in plants. However, little is known about the regulation of KIN gene expression in cytoplasmic male sterility (CMS) cabbages (Brassica oleracea L. var. capitata L.). We carried out a genome-wide analysis to identify the KIN genes in the CMS cabbage. Two non-redundant KIN genes, named BoKIN1 (Bol021262) and BoKIN2 (Bol030498), were identified. Reverse transcriptase PCR detected alternative splicing (AS) products of BoKIN1 (four AS products) and BoKIN2 (three AS products). In addition, alternative polyadenylation (APA) was observed for BoKIN1 and BoKIN2 in the CMS cabbage, resulting in variable 3'UTRs in their transcripts. Furthermore, the transcription levels of BoKIN1-0 and BoKIN2-0, the introns of which were spliced completely, were analyzed in various organs and young leaves treated by abiotic stresses. Our data indicated that BoKIN1-0 is highly expressed in various organs, whereas BoKIN2-0 is expressed exclusively in the stamen. Our study also suggested that BoKIN1-0 was upregulated significantly in young leaves of plants exposed to abscisic acid treatment, and cold and heat stress. BoKIN1 and BoKIN2 had differential AS and APA patterns in pre-mRNA processing, and showed differences in their expression patterns and transcript levels. BoKIN1 participates widely in organ development and responds to diverse abiotic stresses, whereas BoKIN2 plays a main role in stamen development in the CMS cabbage.

分类号： Q7

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