| Phylogeny of Microcystins: Evidence of a Biogeographical Trend? | |
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MedLine Citation:
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PMID: 23138177 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Microcystins, the most prevalent cyanotoxins occurring worldwide, were first recorded in the species Microcystis aeruginosa. Its production has been reported in all continents; thus, we propose a comprehensive phylogenetic study to characterize M. aeruginosa microcystin-producing strains and establish whether or not the species has an historic biogeography. To accomplish this, we compared phylogenetically the nucleotide sequences of three genes of the mcy gene cluster (mcyA, mcyD and mcyG) from toxin producing M. aeruginosa strains across all the five continents. The obtained results provided valuable insight on the biogeography of M. aeruginosa produced microcystins: (i) the Asian strains showed to be distinct from the other continental groups indicating a genetically unique population and (ii) Asian strains were more related to European and North American strains. Moreover, the evidence of positive selection was determined in all the three mcy genes indicating that some functionality yet to be determined could be under selection for these genes. |
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Authors:
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Cristiana Moreira; Vitor Vasconcelos; Agostinho Antunes |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-11-9 |
Journal Detail:
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Title: Current microbiology Volume: - ISSN: 1432-0991 ISO Abbreviation: Curr. Microbiol. Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-11-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7808448 Medline TA: Curr Microbiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 177, 4050-123, Porto, Portugal. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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