Complete mitochondrial genome of the yellowfin tuna (Thunnus albacares) and the blackfin tuna (Thunnus atlanticus): notes on mtDNA introgression and paraphyly on tunas

The genus Thunnus is composed of eight species, which are separated into two groups, the temperate subgenus Thunnus (bluefin tunas group) and the tropical subgenus Neothunnus (yellowfin tunas group). We obtained the mitochondrial genome for two species from the yellowfin group, Thunnus albacares and...

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Bibliographic Details
Published in:Conservation genetics resources 2018-12, Vol.10 (4), p.697-699
Main Authors: Bayona-Vásquez, N. J., Glenn, T. C., Uribe-Alcocer, M., Pecoraro, C., Díaz-Jaimes, P.
Format: Article
Language:English
Subjects:
Animal Genetics and Genomics
Biodiversity
Biomedical and Life Sciences
Conservation Biology/Ecology
Ecology
Evolutionary Biology
Genomes
Life Sciences
Mitochondria
Mitochondrial DNA
Phylogeny
Plant Genetics and Genomics
Species
Technical Note
Thunnus
Thunnus alalunga
Thunnus albacares
Thunnus atlanticus
Thunnus obesus
Thunnus orientalis
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Summary:The genus Thunnus is composed of eight species, which are separated into two groups, the temperate subgenus Thunnus (bluefin tunas group) and the tropical subgenus Neothunnus (yellowfin tunas group). We obtained the mitochondrial genome for two species from the yellowfin group, Thunnus albacares and Thunnus atlanticus , and compared to those from extant Thunnus species to reconstruct the mtDNA phylogenetic relationship within the genus. Our results coincide with previous studies using mtDNA and nuclear loci in the paraphyly of the bluefin group mainly as a result of the position of Thunnus obesus within the tree. Also, we support the introgression hypothesis of the mtDNA from albacore into Pacific Bluefin tuna.
ISSN:1877-7252
1877-7260
DOI:10.1007/s12686-017-0904-0