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Title: Cryptic diversity in the mtDNA of the ornamental fish Carnegiella strigata
Authors: Schneider, Carlos Henrique
Gross, Maria Claudia
Terêncio, Maria Leandra
Porto, Jorge Ivan Rebelo
Keywords: Dna, Mitochondrial
Gene Flow
Genetic Variability
Molecular Genetics
Nucleotide Sequence
Population Migration
Animals Migration
Dna, Mitochondrial
Gene Flow
Genetic Variation
Molecular Sequence Data
Carnegiella Strigata
Issue Date: 2012
metadata.dc.publisher.journal: Journal of Fish Biology
metadata.dc.relation.ispartof: Volume 81, Número 4, Pags. 1210-1224
Abstract: Mitochondrial DNA ( mtDNA) sequences of the marbled hatchetfish Carnegiella strigata, an ornamental fish exported from the Negro River, was examined to determine its genetic diversity and population structure in blackwater rivers (Negro and Uatumã Rivers) in the central Amazon. Analyses of a 646 bp fragment of the ATPase 6/8 mtDNA gene revealed two monophyletic lineages of C. strigata with considerable genetic distance between them (10-12%), suggesting that these lineages should not be considered a single stock. Furthermore, there were strong differences in the geographical distribution of the lineages. These results indicate a past association between drainages of the Negro and Uatumã Rivers. They also suggest that, in the Negro River, its main tributary, the Branco River, may act as a geographical barrier and potentially an ecological barrier between populations of the middle and lower portions of the river. © 2012 The Fisheries Society of the British Isles.
metadata.dc.identifier.doi: 10.1111/j.1095-8649.2012.03403.x
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