Genetic structure and historical diversification of catfish Brachyplatystoma platynemum (Siluriformes: Pimelodidae) in the Amazon basin with implications for its conservation
Brachyplatystoma platynemum is a catfish species widely distributed in the Amazon basin. Despite being considered of little commercial interest, the decline in other fish populations has contributed to the increase in the catches of this species. The structure, population genetic variability, and ev...
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| Veröffentlicht in: | Ecology and evolution 2015-05, Vol.5 (10), p.2005-2020 |
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| creator | Ochoa, Luz Eneida Pereira, Luiz Henrique G. Costa‐Silva, Guilherme Jose Roxo, Fábio F. Batista, Jacqueline S. Formiga, Kyara Foresti, Fausto Oliveira, Claudio |
| description | Brachyplatystoma platynemum is a catfish species widely distributed in the Amazon basin. Despite being considered of little commercial interest, the decline in other fish populations has contributed to the increase in the catches of this species. The structure, population genetic variability, and evolutionary process that have driven the diversification of this species are presently unknown. Considering that, in order to better understand the genetic structure of this species, we analyzed individuals from seven locations of the Amazon basin using eight molecular markers: control region and cytochrome b mtDNA sequences, and a set of six nuclear microsatellite loci. The results show high levels of haplotype diversity and point to the occurrence of two structured populations (Amazon River and the Madeira River) with high values for FST. Divergence time estimates based on mtDNA indicated that these populations diverged about 1.0 Mya (0.2–2.5 Mya 95% HPD) using cytochrome b and 1.4 Mya (0.2–2.7 Mya 95% HPD) using control region. During that time, the influence of climate changes and hydrological events such as sea level oscillations and drainage isolation as a result of geological processes in the Pleistocene may have contributed to the current structure of B. platynemum populations, as well as of differences in water chemistry in Madeira River. The strong genetic structure and the time of genetic divergence estimated for the groups may indicate the existence of strong structure populations of B. platynemum in the Amazon basin.
Analisys of genetic structure of B. platynemum in the Amazon basin, showed high levels of haplotype diversity and point to the occurrence of two highly structured populations. The divergence time estimated indicated that these populations diverged approximately between 1.0–1.4 Mya probably like consequence of climatic changes during the Pleistocene. |
| doi_str_mv | 10.1002/ece3.1486 |
| format | Article |
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Analisys of genetic structure of B. platynemum in the Amazon basin, showed high levels of haplotype diversity and point to the occurrence of two highly structured populations. The divergence time estimated indicated that these populations diverged approximately between 1.0–1.4 Mya probably like consequence of climatic changes during the Pleistocene.</description><identifier>ISSN: 2045-7758</identifier><identifier>EISSN: 2045-7758</identifier><identifier>DOI: 10.1002/ece3.1486</identifier><identifier>PMID: 26045952</identifier><language>eng</language><publisher>England: John Wiley & Sons, Inc</publisher><subject>Basins ; Biodiversity ; Biological evolution ; Catfish ; Climate change ; climate oscillation ; Cytochrome ; Cytochrome b ; Cytochromes ; Divergence ; Fish ; Fish populations ; Fishing ; Genetic diversity ; Genetic structure ; Genetic variability ; Haplotypes ; Historical structures ; Hydrology ; Hypotheses ; Madeira River ; marine transgression ; Mitochondrial DNA ; Neotropical fishes ; Organic chemistry ; Original Research ; Oscillations ; Phylogeography ; Pleistocene ; Population ; Population genetics ; Populations ; River basins ; Rivers ; Sea level ; Species ; Water chemistry ; Wildlife conservation</subject><ispartof>Ecology and evolution, 2015-05, Vol.5 (10), p.2005-2020</ispartof><rights>2015 The Authors. published by John Wiley & Sons Ltd.</rights><rights>2015. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2015 The Authors. published by John Wiley & Sons Ltd. 2015</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449755/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449755/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,724,777,781,861,882,1412,11543,27905,27906,45555,45556,46033,46457,53772,53774</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26045952$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ochoa, Luz Eneida</creatorcontrib><creatorcontrib>Pereira, Luiz Henrique G.</creatorcontrib><creatorcontrib>Costa‐Silva, Guilherme Jose</creatorcontrib><creatorcontrib>Roxo, Fábio F.</creatorcontrib><creatorcontrib>Batista, Jacqueline S.</creatorcontrib><creatorcontrib>Formiga, Kyara</creatorcontrib><creatorcontrib>Foresti, Fausto</creatorcontrib><creatorcontrib>Oliveira, Claudio</creatorcontrib><title>Genetic structure and historical diversification of catfish Brachyplatystoma platynemum (Siluriformes: Pimelodidae) in the Amazon basin with implications for its conservation</title><title>Ecology and evolution</title><addtitle>Ecol Evol</addtitle><description>Brachyplatystoma platynemum is a catfish species widely distributed in the Amazon basin. Despite being considered of little commercial interest, the decline in other fish populations has contributed to the increase in the catches of this species. The structure, population genetic variability, and evolutionary process that have driven the diversification of this species are presently unknown. Considering that, in order to better understand the genetic structure of this species, we analyzed individuals from seven locations of the Amazon basin using eight molecular markers: control region and cytochrome b mtDNA sequences, and a set of six nuclear microsatellite loci. The results show high levels of haplotype diversity and point to the occurrence of two structured populations (Amazon River and the Madeira River) with high values for FST. Divergence time estimates based on mtDNA indicated that these populations diverged about 1.0 Mya (0.2–2.5 Mya 95% HPD) using cytochrome b and 1.4 Mya (0.2–2.7 Mya 95% HPD) using control region. During that time, the influence of climate changes and hydrological events such as sea level oscillations and drainage isolation as a result of geological processes in the Pleistocene may have contributed to the current structure of B. platynemum populations, as well as of differences in water chemistry in Madeira River. The strong genetic structure and the time of genetic divergence estimated for the groups may indicate the existence of strong structure populations of B. platynemum in the Amazon basin.
Analisys of genetic structure of B. platynemum in the Amazon basin, showed high levels of haplotype diversity and point to the occurrence of two highly structured populations. The divergence time estimated indicated that these populations diverged approximately between 1.0–1.4 Mya probably like consequence of climatic changes during the Pleistocene.</description><subject>Basins</subject><subject>Biodiversity</subject><subject>Biological evolution</subject><subject>Catfish</subject><subject>Climate change</subject><subject>climate oscillation</subject><subject>Cytochrome</subject><subject>Cytochrome b</subject><subject>Cytochromes</subject><subject>Divergence</subject><subject>Fish</subject><subject>Fish populations</subject><subject>Fishing</subject><subject>Genetic diversity</subject><subject>Genetic structure</subject><subject>Genetic variability</subject><subject>Haplotypes</subject><subject>Historical structures</subject><subject>Hydrology</subject><subject>Hypotheses</subject><subject>Madeira River</subject><subject>marine transgression</subject><subject>Mitochondrial DNA</subject><subject>Neotropical fishes</subject><subject>Organic chemistry</subject><subject>Original Research</subject><subject>Oscillations</subject><subject>Phylogeography</subject><subject>Pleistocene</subject><subject>Population</subject><subject>Population genetics</subject><subject>Populations</subject><subject>River basins</subject><subject>Rivers</subject><subject>Sea level</subject><subject>Species</subject><subject>Water chemistry</subject><subject>Wildlife 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conservation</title><author>Ochoa, Luz Eneida ; Pereira, Luiz Henrique G. ; Costa‐Silva, Guilherme Jose ; Roxo, Fábio F. ; Batista, Jacqueline S. ; Formiga, Kyara ; Foresti, Fausto ; Oliveira, Claudio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p4396-f8caca5b6de2378f284ae48d9a1cf9c737f34fe197e0bf5949f931a65605fca93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Basins</topic><topic>Biodiversity</topic><topic>Biological evolution</topic><topic>Catfish</topic><topic>Climate change</topic><topic>climate oscillation</topic><topic>Cytochrome</topic><topic>Cytochrome b</topic><topic>Cytochromes</topic><topic>Divergence</topic><topic>Fish</topic><topic>Fish populations</topic><topic>Fishing</topic><topic>Genetic diversity</topic><topic>Genetic structure</topic><topic>Genetic variability</topic><topic>Haplotypes</topic><topic>Historical 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Evol</addtitle><date>2015-05</date><risdate>2015</risdate><volume>5</volume><issue>10</issue><spage>2005</spage><epage>2020</epage><pages>2005-2020</pages><issn>2045-7758</issn><eissn>2045-7758</eissn><abstract>Brachyplatystoma platynemum is a catfish species widely distributed in the Amazon basin. Despite being considered of little commercial interest, the decline in other fish populations has contributed to the increase in the catches of this species. The structure, population genetic variability, and evolutionary process that have driven the diversification of this species are presently unknown. Considering that, in order to better understand the genetic structure of this species, we analyzed individuals from seven locations of the Amazon basin using eight molecular markers: control region and cytochrome b mtDNA sequences, and a set of six nuclear microsatellite loci. The results show high levels of haplotype diversity and point to the occurrence of two structured populations (Amazon River and the Madeira River) with high values for FST. Divergence time estimates based on mtDNA indicated that these populations diverged about 1.0 Mya (0.2–2.5 Mya 95% HPD) using cytochrome b and 1.4 Mya (0.2–2.7 Mya 95% HPD) using control region. During that time, the influence of climate changes and hydrological events such as sea level oscillations and drainage isolation as a result of geological processes in the Pleistocene may have contributed to the current structure of B. platynemum populations, as well as of differences in water chemistry in Madeira River. The strong genetic structure and the time of genetic divergence estimated for the groups may indicate the existence of strong structure populations of B. platynemum in the Amazon basin.
Analisys of genetic structure of B. platynemum in the Amazon basin, showed high levels of haplotype diversity and point to the occurrence of two highly structured populations. The divergence time estimated indicated that these populations diverged approximately between 1.0–1.4 Mya probably like consequence of climatic changes during the Pleistocene.</abstract><cop>England</cop><pub>John Wiley & Sons, Inc</pub><pmid>26045952</pmid><doi>10.1002/ece3.1486</doi><tpages>16</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Basins Biodiversity Biological evolution Catfish Climate change climate oscillation Cytochrome Cytochrome b Cytochromes Divergence Fish Fish populations Fishing Genetic diversity Genetic structure Genetic variability Haplotypes Historical structures Hydrology Hypotheses Madeira River marine transgression Mitochondrial DNA Neotropical fishes Organic chemistry Original Research Oscillations Phylogeography Pleistocene Population Population genetics Populations River basins Rivers Sea level Species Water chemistry Wildlife conservation |
| title | Genetic structure and historical diversification of catfish Brachyplatystoma platynemum (Siluriformes: Pimelodidae) in the Amazon basin with implications for its conservation |
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