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- Publisher Website: 10.1093/molbev/mss191
- Scopus: eid_2-s2.0-84869014713
- PMID: 22844070
- WOS: WOS:000310970000024
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Article: Extreme conservation and non-neutral evolution of the cpmA Circadian locus in a globally distributed Chroococcidiopsis sp. from naturally stressful habitats
Title | Extreme conservation and non-neutral evolution of the cpmA Circadian locus in a globally distributed Chroococcidiopsis sp. from naturally stressful habitats |
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Authors | |
Keywords | Animal experiment Bacterial strain Bacterium culture Chroococcidiopsis Circadian rhythm |
Issue Date | 2012 |
Publisher | Oxford University Press. The Journal's web site is located at http://mbe.oxfordjournals.org/ |
Citation | Molecular Biology and Evolution, 2012, v. 29 n. 12, p. 3899-3907 How to Cite? |
Abstract | Cyanobacteria are among the most ancient organisms known to have circadian rhythms. The cpmA gene is involved in controlling the circadian output signal. We studied polymorphism and divergence of this gene in six populations of a stress-tolerant cyanobacterium, Chroococcidiopsis sp., sampled in extreme habitats across the globe. Despite high haplotype diversity (0.774), nucleotide diversity of cpmA is very low (pi = 0.0034): the gene appears to be even more conserved than housekeeping genes. Even though the populations were sampled thousands kilometers apart, they manifested virtually no genetic differentiation at this locus (F(ST) = 0.0228). Using various tests for neutrality, we determined that evolution of cpmA significantly departures from the neutral model and is governed by episodic positive selection. |
Persistent Identifier | http://hdl.handle.net/10722/169428 |
ISSN | 2023 Impact Factor: 11.0 2023 SCImago Journal Rankings: 4.061 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Dvornyk, V | en_US |
dc.contributor.author | Jahan, AS | en_US |
dc.date.accessioned | 2012-10-18T08:54:44Z | - |
dc.date.available | 2012-10-18T08:54:44Z | - |
dc.date.issued | 2012 | en_US |
dc.identifier.citation | Molecular Biology and Evolution, 2012, v. 29 n. 12, p. 3899-3907 | en_US |
dc.identifier.issn | 0737-4038 | - |
dc.identifier.uri | http://hdl.handle.net/10722/169428 | - |
dc.description.abstract | Cyanobacteria are among the most ancient organisms known to have circadian rhythms. The cpmA gene is involved in controlling the circadian output signal. We studied polymorphism and divergence of this gene in six populations of a stress-tolerant cyanobacterium, Chroococcidiopsis sp., sampled in extreme habitats across the globe. Despite high haplotype diversity (0.774), nucleotide diversity of cpmA is very low (pi = 0.0034): the gene appears to be even more conserved than housekeeping genes. Even though the populations were sampled thousands kilometers apart, they manifested virtually no genetic differentiation at this locus (F(ST) = 0.0228). Using various tests for neutrality, we determined that evolution of cpmA significantly departures from the neutral model and is governed by episodic positive selection. | - |
dc.language | eng | en_US |
dc.publisher | Oxford University Press. The Journal's web site is located at http://mbe.oxfordjournals.org/ | en_US |
dc.relation.ispartof | Molecular Biology and Evolution | en_US |
dc.subject | Animal experiment | - |
dc.subject | Bacterial strain | - |
dc.subject | Bacterium culture | - |
dc.subject | Chroococcidiopsis | - |
dc.subject | Circadian rhythm | - |
dc.title | Extreme conservation and non-neutral evolution of the cpmA Circadian locus in a globally distributed Chroococcidiopsis sp. from naturally stressful habitats | en_US |
dc.type | Article | en_US |
dc.identifier.email | Dvornyk, V: dvornyk@hku.hk | en_US |
dc.identifier.authority | Dvornyk, V=rp00693 | en_US |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1093/molbev/mss191 | - |
dc.identifier.pmid | 22844070 | - |
dc.identifier.scopus | eid_2-s2.0-84869014713 | - |
dc.identifier.hkuros | 211989 | en_US |
dc.identifier.volume | 29 | - |
dc.identifier.issue | 12 | - |
dc.identifier.spage | 3899 | - |
dc.identifier.epage | 3907 | - |
dc.identifier.eissn | 1537-1719 | - |
dc.identifier.isi | WOS:000310970000024 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0737-4038 | - |