Limited genetic depletion despite extinction risk: genomic diversity of a peripheral population of red-spotted bluethroats in Central Europe

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00597863" target="_blank" >RIV/60077344:_____/24:00597863 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/24:43908639

Result on the web

<a href="https://doi.org/10.1093/zoolinnean/zlae094" target="_blank" >https://doi.org/10.1093/zoolinnean/zlae094</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/zoolinnean/zlae094" target="_blank" >10.1093/zoolinnean/zlae094</a>

Result language

angličtina

Original language name

Limited genetic depletion despite extinction risk: genomic diversity of a peripheral population of red-spotted bluethroats in Central Europe

Original language description

Small and isolated populations are at risk of local extinction, either due to the reduction of genetic diversity or due to stochastic events. We assessed genetic diversity in populations of the red-spotted (Luscinia svecica svecica) and white-spotted bluethroat (L. s. cyanecula) subspecies from six European sites, focusing on a peripheral and declining, red-spotted population from Central Europe (Krkono & scaron, Mountains, Czech Republic). Analysis of population structure using mitochondrial sequences (cytochrome b) and ddRAD genomic data revealed that the two subspecies form clearly defined clusters, but traces of possible admixture were found in three populations of the white-spotted bluethroat. Demographic history reconstruction indicates past population range expansion in both subspecies, while the occurrence of short (0.4 Mbp) runs of homozygosity (ROH) segments suggests possible inbreeding 50 to 200 generations ago. Interestingly, although established by a small number of individuals, the Krkono & scaron, population show reduced genetic diversity in only one measure of summary statistics, possibly due to sustained gene flow. Correspondingly, nine highly homozygous genes were recovered within a 2.6-Mbp long ROH region on the Chr 5. Thus, we found only a small reduction of genetic diversity in a population facing extinction, contrary to the expectations for a geographically distant and small population.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10613 - Zoology

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

Zoological Journal of the Linnean Society

ISSN

0024-4082

e-ISSN

1096-3642

Volume of the periodical

201

Issue of the periodical within the volume

4

Country of publishing house

US - UNITED STATES

Number of pages

16

Pages from-to

zlae094

UT code for WoS article

001296725300001

EID of the result in the Scopus database

2-s2.0-85202070515