Gene flow assessment helps to distinguish strong genomic structure from speciation in an Iberian ant-eating spider

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F23%3A00567815" target="_blank" >RIV/68081766:_____/23:00567815 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/23:00130205

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S1055790322002950?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1055790322002950?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ympev.2022.107682" target="_blank" >10.1016/j.ympev.2022.107682</a>

Result language

angličtina

Original language name

Gene flow assessment helps to distinguish strong genomic structure from speciation in an Iberian ant-eating spider

Original language description

Although genomic data is boosting our understanding of evolution, we still lack a solid framework to perform reliable genome-based species delineation. This problem is especially critical in the case of phylogeographically structured organisms, with allopatric populations showing similar divergence patterns as species. Here, we assess the species limits and phylogeography of Zodarion alacre, an ant-eating spider widely distributed across the Iberian Peninsula. We first performed species delimitation based on genome-wide data and then validated these results using additional evidence. A commonly employed species delimitation strategy detected four distinct lineages with almost no admixture, which present allopatric distributions. These lineages showed ecological differentiation but no clear morphological differentiation, and evidence of introgression in a mitochondrial barcode. Phylogenomic networks found evidence of substantial gene flow between lineages. Finally, phylogeographic methods highlighted remarkable isolation by distance and detected evidence of range expansion from south-central Portugal to central-north Spain. We conclude that despite their deep genomic differentiation, the lineages of Z. alacre do not show evidence of complete speciation. Our results likely shed light on why Zodarion is among the most diversified spider genera despite its limited distribution and support the use of gene flow evidence to inform species boundaries.

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

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Molecular Phylogenetics and Evolution

ISSN

1055-7903

e-ISSN

1095-9513

Volume of the periodical

180

Issue of the periodical within the volume

MAR

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

107682

UT code for WoS article

000917099800001

EID of the result in the Scopus database

2-s2.0-85145298043