Comprehensive analysis of sesame LRR-RLKs: structure, evolution and dynamic expression profiles under Macrophomina phaseolina stress

• Published in: Frontiers in plant science Vol. 15; p. 1334189
• Main Authors: Yan, Wenqing, Ni, Yunxia, Zhao, Hui, Liu, Xintao, Jia, Min, Zhao, Xinbei, Li, Yongdong, Miao, Hongmei, Liu, Hongyan, Zhang, Haiyang
• Format: Journal Article
• Language: English
• Published: Switzerland Frontiers Media S.A 12-02-2024
• Subjects: evolution; expression profiles; LRR-RLK; Macrophomina phaseolina; Plant Science; Sesamum indicum; LRR-RLK; Sesamum indicum; Macrophomina phaseolina; evolution; expression profiles
• ISSN: 1664-462X; 1664-462X
• DOI: 10.3389/fpls.2024.1334189

Leucine-rich repeat receptor-like kinases (LRR-RLKs) can participate in the regulation of plant growth and development, immunity and signal transduction.
, one of the most important oil crops, has a significant role in promoting human health. In this study, 175
genes were identified in
, and they were subdivided into 12 subfamilies by phylogenetic analysis. Gene duplication analysis showed that the expansion of the
family members in the sesame was mainly due to segmental duplication. Moreover, the gene expansion of subfamilies IV and III contributed to the perception of stimuli under
stress in the sesame. The collinearity analysis with other plant species revealed that the duplication of
genes occurred after the differentiation of dicotyledons and monocotyledons. The expression profile analysis and functional annotation of
genes indicated that they play a vital role in biotic stress. Furthermore, the protein-protein interaction and coexpression networks suggested that SiLRR-RLKs contributed to sesame resistance to
by acting alone or as a polymer with other SiLRR-RLKs. In conclusion, the comprehensive analysis of the
gene family provided a framework for further functional studies on
genes.