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@article{2248072,
author = {Ortiz Martínez, David and Pekár, Stanislav and Bryjová, Anna},
article_number = {March},
doi = {http://dx.doi.org/10.1016/j.ympev.2022.107682},
keywords = {Ancestral range estimation; Gdi; Gene flow analyses; Integrative taxonomy; Multispecies coalescent; Species delimitation},
language = {eng},
issn = {1055-7903},
journal = {Molecular Phylogenetics and Evolution},
title = {Gene flow assessment helps to distinguish strong genomic structure from speciation in an Iberian ant-eating spider},
url = {https://doi.org/10.1016/j.ympev.2022.107682},
volume = {180},
year = {2023}
}
TY - JOUR
ID - 2248072
AU - Ortiz Martínez, David - Pekár, Stanislav - Bryjová, Anna
PY - 2023
TI - Gene flow assessment helps to distinguish strong genomic structure from speciation in an Iberian ant-eating spider
JF - Molecular Phylogenetics and Evolution
VL - 180
IS - March
SP - 1-14
EP - 1-14
PB - Elsevier
SN - 10557903
KW - Ancestral range estimation
KW - Gdi
KW - Gene flow analyses
KW - Integrative taxonomy
KW - Multispecies coalescent
KW - Species delimitation
UR - https://doi.org/10.1016/j.ympev.2022.107682
N2 - 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.
ER -
ORTIZ MARTÍNEZ, David, Stanislav PEKÁR and Anna BRYJOVÁ. Gene flow assessment helps to distinguish strong genomic structure from speciation in an Iberian ant-eating spider. \textit{Molecular Phylogenetics and Evolution}. Elsevier, 2023, vol.~180, March, p.~1-14. ISSN~1055-7903. Available from: https://dx.doi.org/10.1016/j.ympev.2022.107682.
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