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Wu Y, Jin L, Li Y, Zhang D, Zhao Y, Chu Y, Ma ZR, Ma XX, Shang Y. The nucleotide usages significantly impact synonymous codon usage in Mycoplasma hyorhinis. J Basic Microbiol 2021; 61:133-146. [PMID: 33426673 DOI: 10.1002/jobm.202000592] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/15/2020] [Accepted: 12/23/2020] [Indexed: 11/08/2022]
Abstract
Five annotated genomes of Mycoplasma hyorhinis were analyzed for clarifying evolutionary dynamics driving the overall codon usage pattern. Information entropy used for estimating nucleotide usage pattern at the gene level indicates that multiple evolutionary dynamics participate in forcing nucleotide usage bias at every codon position. Moreover, nucleotide usage bias directly contributes to synonymous codon usage biases with two different extremes. The overrepresented codons tended to have A/T in the third codon position, and the underrepresented codons strongly used G/C in the third position. Furthermore, correspondence analysis and neutrality plot reflect an obvious interplay between mutation pressure and natural selection mediating codon usage in M. hyorhinis genome. Due to significant bias in usages between A/T and G/C at the gene level, different selective forces have been proposed to contribute to codon usage preference in M. hyorhinis genome, including nucleotide composition constraint derived from mutation pressure, translational selection involved in natural selection, and strand-specific mutational bias represented by different nucleotide skew index. The systemic analyses of codon usage for M. hyorhinis can enable us to better understand the mechanisms of evolution in this species.
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Affiliation(s)
- Yaqin Wu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, P.R. China.,Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Li Jin
- Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Yicong Li
- Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Derong Zhang
- Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Yongqing Zhao
- Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Yuefeng Chu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, P.R. China
| | - Zhong-Ren Ma
- Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Xiao-Xia Ma
- Biomedical Research Center, Northwest Minzu University, Lanzhou, P.R. China
| | - Youjun Shang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu, P.R. China
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