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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F19%3A00517381" target="_blank" >RIV/67985904:_____/19:00517381 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4425/10/9/693" target="_blank" >https://www.mdpi.com/2073-4425/10/9/693</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/genes10090693" target="_blank" >10.3390/genes10090693</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10603 - Genetics and heredity (medical genetics to be 3)

Project

<a href="/en/project/EF15_003%2F0000460" target="_blank" >EF15_003/0000460: EXCELLENCE in Molecular Aspects of the early development of vertebrates</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Genes

ISSN

2073-4425

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

693

UT code for WoS article

000487954700056

EID of the result in the Scopus database

2-s2.0-85072048325