Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage bias
Members of the families Thermosynechococcaceae and Thermostichaceae are well-known unicellular thermophilic cyanobacteria and a non-thermophilic genus Pseudocalidococcus was newly classified into the former. Analysis of the codon usage bias (CUB) of cyanobacterial species inhabiting different therma...
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Frontiers Media S.A.
2025-01-01
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| Series: | Acta Biochimica Polonica |
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| author | Qiao-Hui Mou Zhe Hu Jing Zhang Maurycy Daroch Jie Tang |
| author_facet | Qiao-Hui Mou Zhe Hu Jing Zhang Maurycy Daroch Jie Tang |
| author_sort | Qiao-Hui Mou |
| collection | DOAJ |
| description | Members of the families Thermosynechococcaceae and Thermostichaceae are well-known unicellular thermophilic cyanobacteria and a non-thermophilic genus Pseudocalidococcus was newly classified into the former. Analysis of the codon usage bias (CUB) of cyanobacterial species inhabiting different thermal and non-thermal niches will benefit the understanding of their genetic and evolutionary characteristics. Herein, the CUB and codon context patterns of protein-coding genes were systematically analyzed and compared between members of the two families. Overall, the nucleotide composition and CUB indices were found to differ between thermophiles and non-thermophiles. The thermophiles showed a higher G/C content in the codon base composition and tended to end with G/C compared to the non-thermophiles. Correlation analysis indicated significant associations between codon base composition and CUB indices. The results of the effective number of codons, parity-rule 2, neutral and correspondence analyses indicated that mutational pressure and natural selection primarily account for CUB in these cyanobacterial species, but the primary driving forces exhibit variation among genera. Moreover, the optimal codons identified based on relative synonymous codon usage values were found to differ among genera and even within genera. In addition, codon context pattern analysis revealed the specificity of the sequence context of start and stop codons among genera. Intriguingly, the clustering of codon context patterns appeared to be more related to thermotolerance than to phylogenomic relationships. In conclusion, this study facilitates the understanding of the characteristics and sources of variation of CUB and the evolution of the surveyed cyanobacterial clades with different thermotolerance and provides insights into their adaptation to different environments. |
| format | Article |
| id | doaj-art-c6d28d672276496cb0ab8fcb41b261fc |
| institution | DOAJ |
| issn | 1734-154X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Acta Biochimica Polonica |
| spelling | doaj-art-c6d28d672276496cb0ab8fcb41b261fc2025-08-20T02:44:46ZengFrontiers Media S.A.Acta Biochimica Polonica1734-154X2025-01-017110.3389/abp.2024.1382513825Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage biasQiao-Hui Mou0Zhe Hu1Jing Zhang2Maurycy Daroch3Jie Tang4School of Food and Bioengineering, Chengdu University, Chengdu, ChinaSchool of Food and Bioengineering, Chengdu University, Chengdu, ChinaFood Safety Detection Key Laboratory of Sichuan, Technical Center of Chengdu Customs, Chengdu, ChinaSchool of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, ChinaSchool of Food and Bioengineering, Chengdu University, Chengdu, ChinaMembers of the families Thermosynechococcaceae and Thermostichaceae are well-known unicellular thermophilic cyanobacteria and a non-thermophilic genus Pseudocalidococcus was newly classified into the former. Analysis of the codon usage bias (CUB) of cyanobacterial species inhabiting different thermal and non-thermal niches will benefit the understanding of their genetic and evolutionary characteristics. Herein, the CUB and codon context patterns of protein-coding genes were systematically analyzed and compared between members of the two families. Overall, the nucleotide composition and CUB indices were found to differ between thermophiles and non-thermophiles. The thermophiles showed a higher G/C content in the codon base composition and tended to end with G/C compared to the non-thermophiles. Correlation analysis indicated significant associations between codon base composition and CUB indices. The results of the effective number of codons, parity-rule 2, neutral and correspondence analyses indicated that mutational pressure and natural selection primarily account for CUB in these cyanobacterial species, but the primary driving forces exhibit variation among genera. Moreover, the optimal codons identified based on relative synonymous codon usage values were found to differ among genera and even within genera. In addition, codon context pattern analysis revealed the specificity of the sequence context of start and stop codons among genera. Intriguingly, the clustering of codon context patterns appeared to be more related to thermotolerance than to phylogenomic relationships. In conclusion, this study facilitates the understanding of the characteristics and sources of variation of CUB and the evolution of the surveyed cyanobacterial clades with different thermotolerance and provides insights into their adaptation to different environments.https://www.frontierspartnerships.org/articles/10.3389/abp.2024.13825/fullthermosynechococcaceaethermostichaceaecodon usageevolutionnatural selection |
| spellingShingle | Qiao-Hui Mou Zhe Hu Jing Zhang Maurycy Daroch Jie Tang Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage bias Acta Biochimica Polonica thermosynechococcaceae thermostichaceae codon usage evolution natural selection |
| title | Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage bias |
| title_full | Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage bias |
| title_fullStr | Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage bias |
| title_full_unstemmed | Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage bias |
| title_short | Comparative genomics of thermosynechococcaceae and thermostichaceae: insights into codon usage bias |
| title_sort | comparative genomics of thermosynechococcaceae and thermostichaceae insights into codon usage bias |
| topic | thermosynechococcaceae thermostichaceae codon usage evolution natural selection |
| url | https://www.frontierspartnerships.org/articles/10.3389/abp.2024.13825/full |
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