Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish
The large pimelodid, Brachyplatystoma rousseauxii, is one of the two most important catfish species for the fisheries in the Amazon. It is captured by commercial and artisanal fishing fleets in at least five Amazonian countries, at fishing grounds more than 5000 km apart. Current evidence suggests a...
| Autor principal: | Batista, Jacqueline da Silva |
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| Outros Autores: | Alves-Gomes, José Antônio |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Genetics and Molecular Research
2020
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https://repositorio.inpa.gov.br/handle/1/15010 https://www.geneticsmr.com/sites/default/files/articles/year2006/vol5-4/pdf/gmr0231.pdf |
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oai:repositorio:1-15010 Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish Batista, Jacqueline da Silva Alves-Gomes, José Antônio Dna, Mitochondrial Behavior, Animals Animals Experiment Animals Tissue Brachyplatystoma Rousseauxii Catfish Cladistics Controlled Study Dna Base Composition Gene Segregation Gene Sequence Genetic Conservation Genetic Variability Geographic Distribution Life Cycle Migratory Species Nonhuman Nucleotide Sequence Phylogeny Phylogeography Sexual Behavior Siluriformes Species Comparison Animals Migration Animal Catfishes Dna, Mitochondrial Genetic Variation Geography Homing Behavior Phylogeny Polymerase Chain Reaction Brachyplatystoma Pimelodidae Siluriformes The large pimelodid, Brachyplatystoma rousseauxii, is one of the two most important catfish species for the fisheries in the Amazon. It is captured by commercial and artisanal fishing fleets in at least five Amazonian countries, at fishing grounds more than 5000 km apart. Current evidence suggests a complex life cycle that includes the longest reproductive migration known for a freshwater fish species. Experimental fisheries have pointed to a decrease in yield in the Western Amazon. However, reliable information about the capture and status of this fishery resource is still nonexistent, and no study has ever addressed its genetic diversity. We sequenced the entire D-loop of 45 individuals of B. rousseauxii, fifteen from each of three different fishing locations along the main channel of the Solimões-Amazonas System covering a distance of around 2200 km. Results of phylogenetic analyses, molecular diversity estimations, analysis of molecular variance, and nested clade analysis, together show that there is no genetic segregation associated with location in the main channel, as one would expect for a migratory species. However, the significant decrease found in genetic diversity towards the western part of the Amazon could be explained by a non-random choice of tributary to spawn. It is possible that the genetic diversity of the migrating schools decreases towards the west because portions of the species' genetic diversity are being "captured" by the different effluents, as the fish migrates to spawn in the headwaters. Like the salmon in North America, B. rousseauxii may be returning to their home tributary to spawn. ©FUNPEC-RP. 2020-05-07T14:00:31Z 2020-05-07T14:00:31Z 2006 Artigo https://repositorio.inpa.gov.br/handle/1/15010 https://www.geneticsmr.com/sites/default/files/articles/year2006/vol5-4/pdf/gmr0231.pdf en Volume 5, Número 4, Pags. 723-740 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Genetics and Molecular Research |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Dna, Mitochondrial Behavior, Animals Animals Experiment Animals Tissue Brachyplatystoma Rousseauxii Catfish Cladistics Controlled Study Dna Base Composition Gene Segregation Gene Sequence Genetic Conservation Genetic Variability Geographic Distribution Life Cycle Migratory Species Nonhuman Nucleotide Sequence Phylogeny Phylogeography Sexual Behavior Siluriformes Species Comparison Animals Migration Animal Catfishes Dna, Mitochondrial Genetic Variation Geography Homing Behavior Phylogeny Polymerase Chain Reaction Brachyplatystoma Pimelodidae Siluriformes |
| spellingShingle |
Dna, Mitochondrial Behavior, Animals Animals Experiment Animals Tissue Brachyplatystoma Rousseauxii Catfish Cladistics Controlled Study Dna Base Composition Gene Segregation Gene Sequence Genetic Conservation Genetic Variability Geographic Distribution Life Cycle Migratory Species Nonhuman Nucleotide Sequence Phylogeny Phylogeography Sexual Behavior Siluriformes Species Comparison Animals Migration Animal Catfishes Dna, Mitochondrial Genetic Variation Geography Homing Behavior Phylogeny Polymerase Chain Reaction Brachyplatystoma Pimelodidae Siluriformes Batista, Jacqueline da Silva Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish |
| topic_facet |
Dna, Mitochondrial Behavior, Animals Animals Experiment Animals Tissue Brachyplatystoma Rousseauxii Catfish Cladistics Controlled Study Dna Base Composition Gene Segregation Gene Sequence Genetic Conservation Genetic Variability Geographic Distribution Life Cycle Migratory Species Nonhuman Nucleotide Sequence Phylogeny Phylogeography Sexual Behavior Siluriformes Species Comparison Animals Migration Animal Catfishes Dna, Mitochondrial Genetic Variation Geography Homing Behavior Phylogeny Polymerase Chain Reaction Brachyplatystoma Pimelodidae Siluriformes |
| description |
The large pimelodid, Brachyplatystoma rousseauxii, is one of the two most important catfish species for the fisheries in the Amazon. It is captured by commercial and artisanal fishing fleets in at least five Amazonian countries, at fishing grounds more than 5000 km apart. Current evidence suggests a complex life cycle that includes the longest reproductive migration known for a freshwater fish species. Experimental fisheries have pointed to a decrease in yield in the Western Amazon. However, reliable information about the capture and status of this fishery resource is still nonexistent, and no study has ever addressed its genetic diversity. We sequenced the entire D-loop of 45 individuals of B. rousseauxii, fifteen from each of three different fishing locations along the main channel of the Solimões-Amazonas System covering a distance of around 2200 km. Results of phylogenetic analyses, molecular diversity estimations, analysis of molecular variance, and nested clade analysis, together show that there is no genetic segregation associated with location in the main channel, as one would expect for a migratory species. However, the significant decrease found in genetic diversity towards the western part of the Amazon could be explained by a non-random choice of tributary to spawn. It is possible that the genetic diversity of the migrating schools decreases towards the west because portions of the species' genetic diversity are being "captured" by the different effluents, as the fish migrates to spawn in the headwaters. Like the salmon in North America, B. rousseauxii may be returning to their home tributary to spawn. ©FUNPEC-RP. |
| format |
Artigo |
| author |
Batista, Jacqueline da Silva |
| author2 |
Alves-Gomes, José Antônio |
| author2Str |
Alves-Gomes, José Antônio |
| title |
Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish |
| title_short |
Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish |
| title_full |
Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish |
| title_fullStr |
Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish |
| title_full_unstemmed |
Phylogeography of Brachyplatystoma rousseauxii (Siluriformes - Pimelodidae) in the Amazon Basin offers preliminary evidence for the first case of "homing" for an Amazonian migratory catfish |
| title_sort |
phylogeography of brachyplatystoma rousseauxii (siluriformes - pimelodidae) in the amazon basin offers preliminary evidence for the first case of "homing" for an amazonian migratory catfish |
| publisher |
Genetics and Molecular Research |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/15010 https://www.geneticsmr.com/sites/default/files/articles/year2006/vol5-4/pdf/gmr0231.pdf |
| _version_ |
1787141915705081856 |
| score |
11.755432 |