Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts
ABSTRACT In the circadian system of cyanobacteria, the ldpA gene is a component of the input to the clock. We comparatively analyzed nucleotide polymorphism of this gene in populations of two closely related species of cyanobacteria (denoted as Synechococcus species S1 and S2, respectively) from ext...
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Online Access: | http://dx.doi.org/10.1128/aem.03439-12 https://journals.asm.org/doi/pdf/10.1128/AEM.03439-12 |
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crasmicro:10.1128/aem.03439-12 2023-06-11T04:06:32+02:00 Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts Ng, Ka Wai Pointing, Stephen B. Dvornyk, Volodymyr 2013 http://dx.doi.org/10.1128/aem.03439-12 https://journals.asm.org/doi/pdf/10.1128/AEM.03439-12 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 79, issue 5, page 1516-1522 ISSN 0099-2240 1098-5336 Ecology Applied Microbiology and Biotechnology Food Science Biotechnology journal-article 2013 crasmicro https://doi.org/10.1128/aem.03439-12 2023-04-20T12:06:05Z ABSTRACT In the circadian system of cyanobacteria, the ldpA gene is a component of the input to the clock. We comparatively analyzed nucleotide polymorphism of this gene in populations of two closely related species of cyanobacteria (denoted as Synechococcus species S1 and S2, respectively) from extreme cold deserts in Antarctica, the Canadian Arctic, and Tibet. Although both species manifested similarly high haplotype diversities (0.990 and 0.809, respectively), the nucleotide diversity differed significantly (0.0091 in S1 and 0.0037 in S2). The populations of species S2 were more differentiated ( F ST = 0.2242) compared to those of species S1 ( F ST between 0.0296 and 0.1188). An analysis of positive selection with several tests yielded highly significant values ( P < 0.01) for both species. On the other hand, these results may be somewhat compromised by fluctuating population sizes of the species. The apparent selection pressure coupled with the pronounced demographic factors, such as population expansion, small effective population size, and genetic drift, may thus result in the observed significant interpopulation differentiation and subsequent speciation of cyanobacteria. Article in Journal/Newspaper Antarc* Antarctica Arctic ASM Journals (American Society for Microbiology - via Crossref) Arctic Applied and Environmental Microbiology 79 5 1516 1522 |
institution |
Open Polar |
collection |
ASM Journals (American Society for Microbiology - via Crossref) |
op_collection_id |
crasmicro |
language |
English |
topic |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology |
spellingShingle |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology Ng, Ka Wai Pointing, Stephen B. Dvornyk, Volodymyr Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts |
topic_facet |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology |
description |
ABSTRACT In the circadian system of cyanobacteria, the ldpA gene is a component of the input to the clock. We comparatively analyzed nucleotide polymorphism of this gene in populations of two closely related species of cyanobacteria (denoted as Synechococcus species S1 and S2, respectively) from extreme cold deserts in Antarctica, the Canadian Arctic, and Tibet. Although both species manifested similarly high haplotype diversities (0.990 and 0.809, respectively), the nucleotide diversity differed significantly (0.0091 in S1 and 0.0037 in S2). The populations of species S2 were more differentiated ( F ST = 0.2242) compared to those of species S1 ( F ST between 0.0296 and 0.1188). An analysis of positive selection with several tests yielded highly significant values ( P < 0.01) for both species. On the other hand, these results may be somewhat compromised by fluctuating population sizes of the species. The apparent selection pressure coupled with the pronounced demographic factors, such as population expansion, small effective population size, and genetic drift, may thus result in the observed significant interpopulation differentiation and subsequent speciation of cyanobacteria. |
format |
Article in Journal/Newspaper |
author |
Ng, Ka Wai Pointing, Stephen B. Dvornyk, Volodymyr |
author_facet |
Ng, Ka Wai Pointing, Stephen B. Dvornyk, Volodymyr |
author_sort |
Ng, Ka Wai |
title |
Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts |
title_short |
Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts |
title_full |
Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts |
title_fullStr |
Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts |
title_full_unstemmed |
Patterns of Nucleotide Diversity of the ldpA Circadian Gene in Closely Related Species of Cyanobacteria from Extreme Cold Deserts |
title_sort |
patterns of nucleotide diversity of the ldpa circadian gene in closely related species of cyanobacteria from extreme cold deserts |
publisher |
American Society for Microbiology |
publishDate |
2013 |
url |
http://dx.doi.org/10.1128/aem.03439-12 https://journals.asm.org/doi/pdf/10.1128/AEM.03439-12 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Antarc* Antarctica Arctic |
genre_facet |
Antarc* Antarctica Arctic |
op_source |
Applied and Environmental Microbiology volume 79, issue 5, page 1516-1522 ISSN 0099-2240 1098-5336 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.03439-12 |
container_title |
Applied and Environmental Microbiology |
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79 |
container_issue |
5 |
container_start_page |
1516 |
op_container_end_page |
1522 |
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1768378546175082496 |