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Wang Jie, Wei Ai-Li, Shi Ying, Li Yan-Hui, Han Yu-Xin, Wang Zhong-Jie. Adaptive evolutionary analysis of hetR gene in Nostoc[J]. Plant Science Journal, 2020, 38(1): 23-31. DOI: 10.11913/PSJ.2095-0837.2020.10023
Citation: Wang Jie, Wei Ai-Li, Shi Ying, Li Yan-Hui, Han Yu-Xin, Wang Zhong-Jie. Adaptive evolutionary analysis of hetR gene in Nostoc[J]. Plant Science Journal, 2020, 38(1): 23-31. DOI: 10.11913/PSJ.2095-0837.2020.10023

Adaptive evolutionary analysis of hetR gene in Nostoc

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This work was supported by grants from the National Natural Science Foundation of China (51709197), Fund for Shanxi "1331 Project" Key Innovative Research Team (TD201718), Applied Basic Research Program of Shanxi (201801D221282), and Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (201802102).

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  • Received Date: May 23, 2019
  • Revised Date: August 09, 2019
  • Available Online: October 31, 2022
  • Published Date: February 27, 2020
  • Fifty-one sequences of the hetR gene from Nostoc and related species of cyanobacteria were studied. The coding proteins of hetR were analyzed by bioinformatics and phylogenetic analysis. The adaptive evolutionary characteristics of hetR were studied using the branch, site, and branch-site models. Phylogenetic analysis showed that the inner group could be divided into four large branches. Based on the adaptive evolutionary analysis, no significant positive selection sites were detected in other branches and algae strains of the three evolutionary models, indicating that most of the sites were under negative selection pressure. However, significant positively selected sites (126T) were detected in Nostoc commune (CHAB2802), indicating that the hetR gene has undergone adaptive evolution in Nostoc.
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