SNPbased analysis of European Thymallus spp. (Salmonidae) reveals extensive mito-nuclear discordance relevant for biogeographic inferences, taxonomy and conservation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F24%3A00585704" target="_blank" >RIV/68081766:_____/24:00585704 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/24:10496430

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13845" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/ddi.13845</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ddi.13845" target="_blank" >10.1111/ddi.13845</a>

Result language

angličtina

Original language name

SNPbased analysis of European Thymallus spp. (Salmonidae) reveals extensive mito-nuclear discordance relevant for biogeographic inferences, taxonomy and conservation

Original language description

Aim: Paleohydrological dynamics are well-documented for European river systems, promoting shifting phases of isolation and connectivity of their aquatic fauna. These conditions coupled with high rates of hybridisation found in freshwater fishes may introduce considerable complexity and potential mito-nuclear discordance of phylogenetic patterns. We evaluate this hypothesis using the first large-scale analysis of nuclear SNPs in European species of grayling (Thymallus) compared to mtDNA data with the aim of reassessing the evolutionary history of this group of rheophilic fishes.nLocation: Freshwater systems in Europe. nMethods: Based on mitochondrial (mitogenomes, control region) and nuclear (ddRADseq) data, we applied population-genetic, phylogenetic, and biogeographic tools to evaluate lineage diversity in the context of paleohydrological alterations. nResults: The results corroborated previously recognised high levels of lineage diversity, but revealed several cases of mito-nuclear discordance and signals of both historical (natural) and human-mediated introgression among major inter- and intraspecific lineages of Thymallus in Europe. A time-calibrated phylogeny and ancestral area estimation, based on nuclear SNP data, supported a late Pliocene diversification of the genus in Europe and suggested an early colonisation of the Black Sea basin with subsequent dispersal into Central and Western Europe. nMain Conclusions: The genetic structure of Thymallus in Europe recovered by nuclear SNPs contrasts considerably with that supported by mtDNA. Several instances of mito-nuclear discordance underscore frequent contact of allopatric lineages in a dynamic paleohydrological landscape and reveal the weakness of basing both taxonomic and conservation decisions on inferences based on mtDNA alone. The Danube and Rhine drainages were inferred as important zones of contact between divergent phylogeographic lineages. Additionally, our data cast doubt on the genetic integrity of the endangered T. aeliani. Its divergence from T. thymallus, using nuclear SNPs, appears minimal as samples of T. aeliani group within Danubian lineages, despite carrying highly divergent reciprocally monophyletic mtDNA.

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

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OECD FORD branch

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Diversity and Distributions

ISSN

1366-9516

e-ISSN

1472-4642

Volume of the periodical

30

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

17

Pages from-to

e13845

UT code for WoS article

001208129100001

EID of the result in the Scopus database

2-s2.0-85191298554