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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Interspecific Genetic Differences and Historical Demography in South American Arowanas (Osteoglossiformes, Osteoglossidae, Osteoglossum)

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Santos de Souza, Fernando Henrique [1] ; Perez, Manolo Fernandez [1] ; Carlos Bertollo, Luiz Antonio [1] ; de Oliveira, Ezequiel Aguiar [1, 2] ; Lavoue, Sebastien [3] ; Gestich, Carla Cristina [1] ; Rab, Petr [4] ; Ezaz, Tariq [5] ; Liehr, Thomas [6] ; Viana, Patrik Ferreira [7] ; Feldberg, Eliana [7] ; Cioffi, Marcelo de Bello [1]
Total Authors: 12
[1] Univ Fed Sao Carlos UFSCar, Dept Genet & Evolucao, Rodovia Washington Luiz Km 235, CP 676, BR-13565905 Sao Carlos, SP - Brazil
[2] Secretaria Estado Educ Mato Grosso SEDUC MT, BR-78049909 Cuiaba, MT - Brazil
[3] Univ Sains Malaysia, Sch Biol Sci, George Town 11800 - Malaysia
[4] Czech Acad Sci, Inst Anim Physiol & Genet, Lab Fish Genet, Rumburska 89, Libechov 27721 - Czech Republic
[5] Univ Canberra, Inst Appl Ecol, Canberra, ACT 2617 - Australia
[6] Univ Hosp Jena, Inst Human Genet, D-07740 Jena - Germany
[7] Inst Nacl de Pesquisas da Amazonia, Coordenacao Biodiversidade, Lab Genet Anim, Av Andre Araujo 2936, BR-69067375 Petropolis - Brazil
Total Affiliations: 7
Document type: Journal article
Source: GENES; v. 10, n. 9 SEP 2019.
Web of Science Citations: 0

The South American arowanas (Osteoglossiformes, Osteoglossidae, Osteoglossum) are emblematic species widely distributed in the Amazon and surrounding basins. Arowana species are under strong anthropogenic pressure as they are extensively exploited for ornamental and food purposes. Until now, limited genetic and cytogenetic information has been available, with only a few studies reporting to their genetic diversity and population structure. In the present study, cytogenetic and DArTseq-derived single nucleotide polymorphism (SNP) data were used to investigate the genetic diversity of the two Osteoglossum species, the silver arowana O. bicirrhosum, and the black arowana O. ferreirai. Both species differ in their 2n (with 2n = 54 and 56 for O. ferreirai and O. bicirrhosum, respectively) and in the composition and distribution of their repetitive DNA content, consistent with their taxonomic status as different species. Our genetic dataset was coupled with contemporary and paleogeographic niche modeling, to develop concurrent demographic models that were tested against each other with a deep learning approach in O. bicirrhosum. Our genetic results reveal that O. bicirrhosum colonized the Tocantins-Araguaia basin from the Amazon basin about one million years ago. In addition, we highlighted a higher genetic diversity of O. bicirrhosum in the Amazon populations in comparison to those from the Tocantins-Araguaia basin. (AU)

FAPESP's process: 18/22033-1 - An intercontinental approach for the investigation of chromosome evolution, genetic diversity and biogeography in the order Osteoglossiformes (Teleostei: Osteoglossomorpha). Part III
Grantee:Marcelo de Bello Cioffi
Support type: Regular Research Grants
FAPESP's process: 17/10240-0 - Genetic diversity, biogeography and evolution of Osteoglossiformes fishes (Teleostei, Osteoglossomorpha)
Grantee:Manolo Fernandez Perez
Support type: Scholarships in Brazil - Post-Doctorate