茶树SRO基因家族的鉴定及表达分析

doi:10.13305/j.cnki.jts.2019.04.004

Abstract

Abstract: SROs (Similar to rcd one) are plant-specific gene families. In this study, 9 CsSRO gene family members were identified from tea tree genome by bioinformatics method and named as CsRCD1—4 and CsSRO1—5 respectively. All coding proteins of the 9 CsSRO genes have characteristic structural domains PARP and RST, and have similar conserved motifs. The CsSRO genes were divided into 3 groups based on phylogenetic tree analysis, with the group Ι containing CsRCD1—4, the group Ⅱ containing CsSRO1, CsSRO2 and the group Ⅲ containing CsSRO3—5. Gene structure analysis shows that this gene family contained 4 to 9 exons. Analysis of transcriptome data from 8 tea tree tissues shows that CsRCD1/CsRCD3/CsRCD4 might play an important role in different developmental stages of tea plants. Most CsSRO genes were highly expressed in roots and mature leaves. Upstream promoter region analysis found a large number of cis-acting elements closely related to plant development, hormones and stress response. Further expression analysis shows that 9 CsSRO genes were induced by drought and abscission acid treatments, suggesting CsSRO genes may be closely related to drought resistance.

Key words: Camellia sinensis, SRO, phylogeny analysis, stress

CLC Number:

GUO Yongchun, WANG Pengjie, CHEN Di, ZHENG Yucheng, CHEN Xuejin, YE Naixing. Genome-wide Identification and Expression Analysis of SRO Gene Family in Camellia sinensis[J]. Journal of Tea Science, 2019, 39(4): 392-402.

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Genome-wide Identification and Expression Analysis of SRO Gene Family in Camellia sinensis

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