Demographic history and genomic consequences of 10,000 generations of isolation in a wild mammal

Wang, Xuejing; Peischl, Stephan; Heckel, Gerald

doi:10.1016/j.cub.2023.04.042

Cited by 6 publications

(4 citation statements)

References 106 publications

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“…Considering the negative effects of anthropogenic fragmentation of habitats that significantly alter patterns of dispersal and functional connectivity, impacting ecological and evolutionary patterns, diminishing genetic diversity and preventing the spread of adaptive complexes (Peninston et al., 2023; Wong et al., 2023), our findings support the threatened status of Dupont's lark and call for urgent conservation measures. In this study, we have shown for the first time how, despite the potential high dispersal of bird species (suggested by the low relatedness values obtained), Dupont's lark gene flow and future survival are tightly linked to the presence of shrub steppe areas (recognized as a unique and threatened habitat in Europe; Sainz Ollero, 2013), impacted by land use transformations.…”

Section: Discussionsupporting

confidence: 63%

“…Considering the negative effects of anthropogenic fragmentation of habitats that significantly alter patterns of dispersal and functional connectivity, impacting ecological and evolutionary patterns, diminishing genetic diversity and preventing the spread of adaptive complexes (Peninston et al, 2023;Wong et al, 2023) Méndez et al, 2014;Reverter et al, 2023). Moreover, this species is indeed already showing signs of genetic erosion mainly due to habitat loss and fragmentation associated with land use changes (Bustillo-de la Rosa et al, 2022;Gómez-Catasús et al, 2018;.…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the demographic and genetic negative effects associated with population isolation (e.g. population size decline, genetic bottlenecks, diversity loss, genetic drift) can have crucial ecological and evolutionary consequences on, among others, metapopulation dynamics and local adaptation, increasing extinction risk especially in low dispersal specialist species (Peninston et al., 2023 ; Wong et al., 2023 ). Indeed, isolated populations resulting from land‐use changes are of major concern in evolutionary biology, conservation and human and animal health (Vázquez‐Domínguez et al., 2024 ).…”

Section: Introductionmentioning

confidence: 99%

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Landscape features influencing gene flow and connectivity of an endangered passerine

Bustillo‐de la Rosa,

Barrero,

Traba

et al. 2024

Ecology and Evolution

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Dispersal of individuals and gene flow are crucial aspects to maintain genetic diversity and viability of populations, especially in the case of threatened species. Landscape composition and structure may facilitate or limit individual movement within and among populations. We used a landscape genetics approach to assess the connectivity patterns of the threatened Dupont's lark (Chersophilus duponti subsp. duponti), considering their genetic patterns and the landscape features associated with its gene flow in Spain. We analysed the genetic relatedness based on 11 species‐specific polymorphic microsatellites on 416 Dupont's lark individuals sampled across peninsular Spain between 2017 and 2019, covering most of the European distribution of the species. To assess the relationship between the landscape composition and the species gene flow, we estimated genetic distance at the individual level (Dps). Next, we built a set of environmental surfaces from two time periods (years 1990 and 2018), based on factors such as land use and topography, influencing individuals' movement. We then obtained resistance surfaces from an optimization process on landscape variables. Landscape genetics analyses were done for single and composite surface models for each year separately. Our findings from both time points show that scatter or mosaic‐structured vegetation composed by low agricultural and tree cover and high presence of sclerophyllous shrubs favoured Dupont's lark dispersal, while dense and continuous tree cover, as well as areas of intensive agriculture, were limiting factors. Our results suggest the importance of steppe habitat patches for the species' establishment and dispersal. In addition, our results provide key information to develop conservation measures, including conserving and restoring steppe habitats as scattered and/or mosaic‐structured vegetation that could warrant the connectivity and persistence of Dupont's lark populations.

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Section: Discussionsupporting

confidence: 63%

“…Considering the negative effects of anthropogenic fragmentation of habitats that significantly alter patterns of dispersal and functional connectivity, impacting ecological and evolutionary patterns, diminishing genetic diversity and preventing the spread of adaptive complexes (Peninston et al, 2023;Wong et al, 2023) Méndez et al, 2014;Reverter et al, 2023). Moreover, this species is indeed already showing signs of genetic erosion mainly due to habitat loss and fragmentation associated with land use changes (Bustillo-de la Rosa et al, 2022;Gómez-Catasús et al, 2018;.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Landscape features influencing gene flow and connectivity of an endangered passerine

Bustillo‐de la Rosa,

Barrero,

Traba

et al. 2024

Ecology and Evolution

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“…2014 ; Schmidt et al. 2016 ; Wang, Peischl, and Heckel 2023 ), making this evolutionary scenario unlikely.…”

Section: Discussionmentioning

confidence: 99%

Genome-wide support for incipient Tula hantavirus species within a single rodent host lineage

Labutin,

Heckel

2024

Virus Evolution

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Evolutionary divergence of viruses is most commonly driven by co-divergence with their hosts or through isolation of transmission after host-shifts. It remains mostly unknown, however, whether divergent phylogenetic clades within named virus species represent functionally equivalent byproducts of high evolutionary rates or rather incipient virus species. Here, we test these alternatives with genomic data from two widespread phylogenetic clades in Tula orthohantavirus (TULV) within a single evolutionary lineage of their natural rodent host, the common vole Microtus arvalis. We examined voles from 42 locations in the contact region between clades for TULV infection by RT-PCR. Sequencing yielded 23 TULV Central North and 21 TULV Central South genomes which differed by 14.9-18.5% at the nucleotide and 2.2-3.7% at the amino acid level without evidence of recombination or reassortment between clades. Geographic cline analyses demonstrated an abrupt (<1 km wide) transition between the parapatric TULV clades in continuous landscape. This transition was located within the Central mitochondrial lineage of M. arvalis and genomic SNPs showed gradual mixing of host populations across it. Genomic differentiation of hosts was much weaker across the TULV Central North to South transition than across the nearby hybrid zone between two evolutionary lineages in the host. We suggest that these parapatric TULV clades represent functionally distinct, incipient species which are likely differently affected by genetic polymorphisms in the host. This highlights the potential of natural viral contact zones as systems for investigating of the genetic and evolutionary factors enabling or restricting the transmission of RNA viruses.

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Adaptation to the High-Arctic island environment despite long-term reduced genetic variation in Svalbard reindeer

Dussex,

Tørresen,

van der Valk

et al. 2023

iScience

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Demographic history and genomic consequences of 10,000 generations of isolation in a wild mammal

Cited by 6 publications

References 106 publications

Landscape features influencing gene flow and connectivity of an endangered passerine

Landscape features influencing gene flow and connectivity of an endangered passerine

Genome-wide support for incipient Tula hantavirus species within a single rodent host lineage

Adaptation to the High-Arctic island environment despite long-term reduced genetic variation in Svalbard reindeer

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