Genomic diversity and geographical structure of the Pyrenean desman

Querejeta, Marina; González‐Esteban, Jorge; Gómez, Asunción; Fernández‐González, Ángel; Aymerich, Pere; Gosálbez, Joaquim; Escoda, Lídia; Igea, Javier; Castresana, José

doi:10.1007/s10592-016-0865-y

Cited by 16 publications

(38 citation statements)

References 43 publications

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“…The Pyrenean desman shows a strong genetic structure, probably due to the past existence of several isolated glacial refugia in which different populations persisted during Pleistocene glaciations and accumulated genetic divergence (Igea et al., ; Querejeta et al., ). The existence of multiple glacial refugia within South European peninsulas, classically considered to be homogeneous refugia, has been proven for many other endemic and semiendemic species (Alexandrino, Froufe, Arntzen, & Ferrand, ; Centeno‐Cuadros, Delibes, & Godoy, ; Godinho, Crespo, & Ferrand, ; Gomez & Lunt, ; Gonçalves et al., ; Martinez‐Solano, Teixeira, Buckley, & García‐París, ; Razgour, Salicini, Ibáñez, Randi, & Juste, ).…”

Section: Discussionmentioning

confidence: 99%

“…Interestingly, the contact zones between the main mitochondrial groups (one located in the Cantabrian Mountains and the other in the Iberian Range) indicated an almost complete absence of spatial mixing between these maternal lineages after postglacial recolonization (Igea et al., ). A genomic analysis based on ddRAD sequences and SNPs corroborated the existence of a strong structure (Querejeta et al., ). The high genetic diversity of the occidental population compared to other populations was confirmed by the same genomic analysis (Querejeta et al., ).…”

Section: Introductionmentioning

confidence: 86%

“…A genomic analysis based on ddRAD sequences and SNPs corroborated the existence of a strong structure (Querejeta et al., ). The high genetic diversity of the occidental population compared to other populations was confirmed by the same genomic analysis (Querejeta et al., ).…”

Section: Introductionmentioning

confidence: 86%

“…Climate change is also anticipated to be a threat to the desman in the future and, given climate scenarios for the Iberian Peninsula, the distribution of the species and its habitat may experience significant decreases in the most vulnerable areas (Fernandes et al, 2011;Morueta-Holme, Fløjgaard, & Svenning, 2010;Thomas, Griffiths, & Ormerod, 2016). Previous studies on the genetic structure and diversity of this species revealed a strong phylogeographic structure (Igea et al, 2013;Querejeta et al, 2016). According to mitochondrial data, there are two main groups (A and B), which are further subdivided into four subgroups (A1, A2, B1, and B2) of allopatric distribution and likely glacial origin (Igea et al, 2013).…”

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confidence: 99%

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Postglacial dispersal patterns and mitochondrial genetic structure of the Pyrenean desman (Galemys pyrenaicus) in the northwestern region of the Iberian Peninsula

Querejeta

Fernández‐González²,

Romero³

et al. 2017

Ecology and Evolution

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The genetic structure of small semiaquatic animals may be influenced by dispersal across both rivers and land. The relative importance of these two modes of dispersal may vary across different species and with ecological conditions and evolutionary periods. The Pyrenean desman (Galemys pyrenaicus) is an endemic mammal of the Iberian Peninsula with a strong phylogeographic structure and semiaquatic habits, thus making it an ideal model to study the effects of river and overland dispersal on its genetic structure. Thanks to different types of noninvasive samples, we obtained an extensive sampling of the Pyrenean desman from the northwestern region of the Iberian Peninsula and sequenced two mitochondrial DNA fragments. We then analyzed, using an isolation-by-distance approach, the correlation between phylogenetic distances and geographical distances measured along both river networks and land to infer the relative importance of river and overland dispersal. We found that the correlations in the whole area and in a large basin were consistent with an effect of overland dispersal, which may be due to the postglacial colonization of new territories using terrestrial corridors and, possibly, a more extensive fluvial network that may have been present during the Holocene. However, in a small basin, likely to be less influenced by the impact of ancient postglacial dispersal, the correlations suggested significant overall effects of both overland and river dispersal, as expected for a semiaquatic mammal.Therefore, different scales and geographical regions reflect different aspects of the evolutionary history and ecology of this semiaquatic species using this isolation-bydistance method. The results we obtained may have crucial implications for the conservation of the Pyrenean desman because they reinforce the importance of interbasin dispersal for this species in the studied area and the need to protect the whole riverine ecosystem, including rivers, upland streams and terrestrial corridors between basins. K E Y W O R D Sdispersal, Galemys pyrenaicus, genetic diversity, Iberian Peninsula, isolation-by-distance, mitochondrial DNA

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 86%

mentioning

confidence: 99%

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Postglacial dispersal patterns and mitochondrial genetic structure of the Pyrenean desman (Galemys pyrenaicus) in the northwestern region of the Iberian Peninsula

Querejeta

Fernández‐González²,

Romero³

et al. 2017

Ecology and Evolution

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“…Additionally, Pleistocene glaciations could have affected its distribution and genetic structure by generating isolated populations in glacial refugia within the Iberian Peninsula (Gomez & Lunt, ). In this sense, it would be particularly interesting to compare the genetic structure of N. anomalus with that of the Pyrenean desman ( Galemys pyrenaicus ), another semi‐aquatic mammal endemic to the Iberian Peninsula (Palmeirim & Hoffmann, ), which was found to have a strong phylogeographic structure (Escoda, González‐Esteban, Gómez, & Castresana, ; Igea et al., ; Querejeta et al., , ). As both species have a similar distribution and habitat, comparing their phylogeographic patterns could provide new insights into the biogeographical forces behind the origin and distribution of the Iberian fauna.…”

Section: Introductionmentioning

confidence: 99%

Evolutionary history of the endemic water shrew Neomys anomalus: Recurrent phylogeographic patterns in semi‐aquatic mammals of the Iberian Peninsula

Querejeta

Castresana

2018

Ecology and Evolution

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The Cabrera's water shrew (Neomys anomalus) is a small semi‐aquatic mammal whose taxonomic status was recently elevated from subspecies to species; as a consequence of this change, this species is now endemic to the Iberian Peninsula. In this study, we looked at its evolutionary history by combining phylogeography, the spatial distribution of genetic diversity, and species distribution modeling. To perform these analyses, we used noninvasive samples collected across the species distribution range and sequenced partial mitochondrial cytochrome b and D‐loop genes. Maximum‐likelihood and Bayesian phylogenetic trees derived from these sequences indicated that N. anomalus is divided into two main phylogroups that correlate strongly with geography, with two contact zones between the groups that showed limited spatial mixing between them. River basins were responsible for only a small percentage of the structure of the genetic diversity of this species despite its riparian habitat. The nucleotide diversity variation map showed the highest genetic diversity to be in the north of the Iberian Peninsula. Finally, species distribution modeling allowed the inference of an optimal area during the Last Interglacial in the north of the Iberian Peninsula, and multiple glacial refugia during the Last Glacial Maximum. The phylogeographic pattern of N. anomalus is strikingly similar to that of another semi‐aquatic Iberian mammal, the Pyrenean desman (Galemys pyrenaicus), revealing how Pleistocene glaciations could have had equivalent effects on species of similar ecology and distribution. This phylogeographic structure is consistent with N. anomalus having been isolated for long periods in multiple glacial refugia within the Iberian Peninsula, in agreement with the “refugia‐within‐refugia” hypothesis, and further supporting its status as a distinct species.

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Genomic analysis of geographical structure and diversity in the capercaillie (Tetrao urogallus)

Escoda,

Piqué,

Paule

et al. 2023

Conserv Genet

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The capercaillie is widespread throughout the boreal forests of northern Eurasia, but faces serious conservation challenges in the southernmost mountain ranges, where the populations are fragmented and some are critically endangered. To develop effective conservation strategies for these populations, it is essential to have information on both their genetic diversity and the genetic structure of the species. In this work, we used a reduced representation (ddRAD) genomic sequencing technique to analyze the genetic structure of the capercaillie across its European range and to assess the inbreeding levels in some of the most threatened populations. Our population structure analysis suggested the existence of two evolutionarily significant units, one formed by the two populations from the Iberian Peninsula and the other by the populations from the rest of Europe. Genetic diversity showed a significant decrease in the Iberian populations with respect to the other European populations. An isolation-with-migration model supported these results and allowed us to estimate the parameters of the population tree. The inbreeding coefficients estimated for the Iberian capercaillies showed relatively low levels in the Pyrenees. However, some individuals with very high inbreeding values were detected in the Cantabrian Mountains, suggesting that some of its subpopulations are substantially isolated. The population structure results and the genomic monitoring method we used to assess inbreeding levels may be crucial for the conservation and recovery of the most endangered capercaillie populations.

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Genomic diversity and geographical structure of the Pyrenean desman

Cited by 16 publications

References 43 publications

Postglacial dispersal patterns and mitochondrial genetic structure of the Pyrenean desman (Galemys pyrenaicus) in the northwestern region of the Iberian Peninsula

Postglacial dispersal patterns and mitochondrial genetic structure of the Pyrenean desman (Galemys pyrenaicus) in the northwestern region of the Iberian Peninsula

Evolutionary history of the endemic water shrew Neomys anomalus: Recurrent phylogeographic patterns in semi‐aquatic mammals of the Iberian Peninsula

Genomic analysis of geographical structure and diversity in the capercaillie (Tetrao urogallus)

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