Spatial genetic structure of the endemic alpine plant Salix serpillifolia: genetic swamping on nunataks due to secondary colonization?

Kosiński, Piotr; Sękiewicz, Katarzyna; Walas, Łukasz; Boratyński, Adam; Dering, Monika

doi:10.1007/s00035-019-00224-4

Cited by 19 publications

(17 citation statements)

References 93 publications

(115 reference statements)

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“…The other common character of populations recolonized from the nunataks is the vestige of a bottleneck during glacial periods (Segarra‐Moragues, Palop‐Esteban, González‐Candelas, & Catalán, 2007; Kosiński et al., 2019). Our data suggest the opposite has happened, as the stairway plots show drastic population decline initiating at the LGM (from 11,550 to 21,000 years ago) and accelerating into the present (Figure 4).…”

Section: Discussionmentioning

confidence: 99%

Drainage basins serve as multiple glacial refugia for alpine habitats in the Sierra Nevada Mountains, California

2020

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The evolutionary histories of alpine species are often directly associated with responses to glaciation. Deep divergence among populations and complex patterns of genetic variation have been inferred as consequences of persistence within glacier boundaries (i.e., on nunataks), while shallow divergence and limited genetic variation are assumed to result from expansion from large refugia at the edge of ice shields (i.e., massifs de refuge). However, for some species, dependence on specific microhabitats could profoundly influence their spatial and demographic response to glaciation, and such a simple dichotomy may obscure the localization of actual refugia. In this study, we use the Nebria ingens complex (Coleoptera: Carabidae), a water‐affiliated ground beetle lineage, to test how drainage basins are linked to their observed population structure. By analysing mitochondrial COI gene sequences and genome‐wide single nucleotide polymorphisms, we find that the major drainage systems of the Sierra Nevada Mountains in California best explain the population structure of the N. ingens complex. In addition, we find that an intermediate morphotype within the N. ingens complex is the product of historical hybridization of N. riversi and N. ingens in the San Joaquin basin during glaciation. This study highlights the importance of considering ecological preferences in how species respond to climate fluctuations and provides an explanation for discordances that are often observed in comparative phylogeographical studies.

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Section: Discussionmentioning

confidence: 99%

Drainage basins serve as multiple glacial refugia for alpine habitats in the Sierra Nevada Mountains, California

2020

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“…The other common character of populations recolonized from the nunataks is the vestige of a bottleneck during glacial periods (Segarra-Moragues, Palop-Esteban, Gonzalez-Candelas, & Catalan, 2007;Kosiński et al, 2019). Our data suggest the opposite has happened, as the stairway plots show drastic population decline initiating at the last glacial maximum and accelerating into the present (Figure 7 ).…”

Section: Differentiating Drainage Based Multiple Refugia From Nunatak Refugiamentioning

confidence: 65%

Drainage basins serve as multiple glacial refugia for alpine habitats in the Sierra Nevada Mountains, California

Weng

Kavanaugh

Schoville

2020

Preprint

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The evolutionary histories of alpine species are often directly associated with responses to glaciation. Deep divergence among populations and complex patterns of genetic variation have been inferred as consequences of persistence within glacier boundaries (i.e. on nunataks), while shallow divergence and limited genetic variation is assumed to result from expansion from large refugia at the edge of ice shields (i.e. massifs de refuge). However, for some species, dependence on specific microhabitats could profoundly influence their spatial and demographic response to glaciation, and such a simple dichotomy may obscure the localization of actual refugia. In this study, we use the Nebria ingens complex (Coleoptera: Carabidae), a water-affiliated ground beetle lineage, to test how drainage basins are linked to their observed population structure. By analyzing mitochondrial COI gene sequences and genome-wide single nucleotide polymorphisms, we find that the major drainage systems of the Sierra Nevada Mountains in California best explain the population structure of the N. ingens complex. In addition, we find that an intermediate morphotype within the N. ingens complex is the product of historical hybridization of N. riversi and N. ingens in the San Joaquin basin during glaciation. This study highlights the importance of considering ecological preferences in how species respond to climate fluctuations and provides an explanation for discordances that are often observed in comparative phylogeographic studies.

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“…The approaches of applying nSSRs from various employment have been developed in Asteraceae for Chresta [37], Solidago [38], as well as to study the hybridization of two Tithonia species [39]. Application of nSSRs were also used for other plant species such as transferability test in Sanguinaria [40], and genetic structures studies in Salix [41], Euptelea [42], and Engelhardia [43]. The 133 successfully developed polymorphic nucleotide microsatellite markers can be further applied to reveal the genetic diversity, population structure, and to develop effective conservation as well as management strategies for C. chinense.…”

Section: Discussionmentioning

confidence: 99%

Development of Genomic Resources From Crossostephium Chinense (Asteraceae) Based on Genome Skimming Data

Liu

Low

Feng

et al. 2021

Preprint

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Crossostephium chinense is a traditional Chinese medicinal herb and it is often cultivated as an ornamental plant. Previous studies on this species mainly focused on its chemical composition and it was represented rarely and marginally in genetic studies, which limited knowledge about its genetic background, and thus genomic resources remain scarce. To develop both chloroplast and nuclear polymorphic microsatellites for C. chinense, potential microsatellites were screened from genome skimming data of two individuals of C. chinense. Sixty-four and 63 cpSSR markers were identified from two chloroplast genomes of C. chinense. This study performed for the first-ever study on employment of genome skimming data and CandiSSR, consequently a total of 133 polymorphic nSSRs were developed. Ten nSSRs were randomly selected to test their transferability across 35 individuals from three populations of C. chinense, and 20 individuals each of Artemisia stolonifera and A. argyi. Cross-amplifications were successful done for C. chinense, and were partially successful amplified for both Artemisia species. The number of alleles varied from two to nine. The observed heterozygosity and expected heterozygosity per locus ranged from 0.000 to 0.286 and from 0.029 to 0.755, respectively. These genomic resources will be valuable for population genetics and conservation studies in C. chinense and Artemisia.

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Spatial genetic structure of the endemic alpine plant Salix serpillifolia: genetic swamping on nunataks due to secondary colonization?

Cited by 19 publications

References 93 publications

Drainage basins serve as multiple glacial refugia for alpine habitats in the Sierra Nevada Mountains, California

Drainage basins serve as multiple glacial refugia for alpine habitats in the Sierra Nevada Mountains, California

Drainage basins serve as multiple glacial refugia for alpine habitats in the Sierra Nevada Mountains, California

Development of Genomic Resources From Crossostephium Chinense (Asteraceae) Based on Genome Skimming Data

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