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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216208:11310/24:10496430

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Diversity and Distributions

ISSN

1366-9516

e-ISSN

1472-4642

Svazek periodika

30

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

e13845

Kód UT WoS článku

001208129100001

EID výsledku v databázi Scopus

2-s2.0-85191298554