Genome-wide identification and expression analysis of CRK gene family in chili pepper (Capsicum annuum L.) in response to Colletotrichum truncatum infection

文献类型： 外文期刊

第一作者： Rout, Swati Sumit

作者： Rout, Swati Sumit;Rout, Priyadarshini;Kumar, Gagan;Nanda, Satyabrata;Uzair, Muhammad

作者机构：

关键词： Genome-wide identification; evolutionary analysis; cysteine-rich receptor-like kinases; Capsicum annuum; Colletotrichum truncatum

期刊名称：JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY （ 影响因子：1.9； 五年影响因子：1.9 ）

ISSN： 1462-0316

年卷期： 2023 年 98 卷 2 期

页码：

收录情况： SCI

摘要： The cysteine-rich receptor-like kinases (CRKs) belong to the plant receptor-like kinases family and have multitudinous roles, including stress responses. However, information on CRKs in chili pepper (Capsicum annuum L.) plants is limited. In this study, a total of 22 C. annuum CRKs (CaCRKs) have been identified in the chili genome. All the identified CaCRKs were mapped onto different chili chromosomes. The gene duplication analysis revealed that five gene pairs had the Ka/Ks ratio greater than one, suggesting the positive selection of CaCRKs in chili. Phylogenetic analysis grouped the CaCRKs into four groups alongside other plant CRKs. The structural characterization of the CaCRKs revealed that all of them carry the signature domains and motifs. The gene ontology analysis predicted their major potential functions to be stress response and protein kinase activity. The expression analysis the CaCRKs in two contrasting chili varieties under Colletotrichum truncatum infection added valuable insights into their involvement in chili-C. truncatum interactions. The comparison of expression dynamics suggested that CaCRK13 could be a potential candidate gene in regulating chili defense against anthracnose pathogen. Moreover, the results of this study will help to get insights into the chili CRKs and their involvement in chili defense response against C. truncatum.

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