The postglacial recolonization of Northern Europe by Rana arvalis as revealed by microsatellite and mitochondrial DNA analyses

Knopp, Theresa; Merilä, Juha

doi:10.1038/hdy.2008.91

Cited by 34 publications

(57 citation statements)

References 47 publications

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“…Nevertheless, the mean expected heterozygosity (H E ) values of 0.157 for the L genome and 0.186 for the R genome found in all-hybrid populations are remarkably low. Although H E values depend on the markers used, so that comparisons between studies and species are problematic, our values appear exceptionally low compared with those from other amphibian studies at similar or higher latitudes (H E ¼ 0.319-0.614 in Andersen et al, 2004;Palo et al, 2004;Allentoft et al, 2009;Knopp and Merila, 2009). Only the very northern, small and isolated Norwegian and Swedish P. lessonae populations (Figure 1) are reported to have lower H E values (H E ¼ 0, Zeisset and Beebee, 2001).…”

Section: Discussioncontrasting

confidence: 56%

Effects of geographic distance, sea barriers and habitat on the genetic structure and diversity of all-hybrid water frog populations

2010

Heredity

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The history of population size and migration patterns leaves its mark in the genetics of populations. We investigate the genetic structure of the edible frog, Pelophylax esculentus in the Danish archipelago and adjacent countries. This frog is of particular interest because it is a hybrid that, in this area, forms all-hybrid populations of diploid (LR) and triploid (LLR and LRR) genomotypes with no (or very few) adults of the parental species (LL and RR). This study is the first to cover the entire geographic range of Danish, Swedish and German all-hybrid populations, documenting their extent and providing a broad picture of their diversity of neutral genetic markers and genomotype proportions. With 18 microsatellite markers, we found that genetic diversity declines northwards in agreement with the glacial refuge and central-marginal hypotheses; however, populations on small and mediumsized islands are no less diverse than those on large islands and continental peninsulas. Isolation by distance exists across the archipelago with limited influence of fragmentation by brackish seawater. The extremely low genetic diversity in all-hybrid populations, compared with adjacent populations, may be responsible for the maintenance of their special breeding system. We also show large variation among ponds in proportions of LLR, LR and LRR genomotypes, but little geographic pattern in their distribution. Instead, we found relationships between the genomotype proportions and some of 15 habitat parameters monitored. Body size differences among LLR, LR and LRR further suggest ecological differences.

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Section: Discussioncontrasting

confidence: 56%

Effects of geographic distance, sea barriers and habitat on the genetic structure and diversity of all-hybrid water frog populations

2010

Heredity

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“…Indeed, more and more studies are combining information from both the types of markers to help infer population history and phylogeographical patterns for post-glacial period (Hewitt, 2004). Knopp and Merilä's (2008) analysis completes the puzzle initiated by Babik et al (2004) in their study at the northern tip of Fennoscandia. With minor discrepancies between the two sets of markers, revealing a recent colonization process and the existence of hybrid zones not formerly identified, they delineated a contact zone in northern Sweden, in a location comparable with other taxa (Hewitt, 1999).…”

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confidence: 55%

“…Surprisingly, the main discrepancy found by Knopp and Merilä (2008) is not in the genetic data from the different sets of molecular markers but between the genetic data and phenotypic data. For example, although the genetic data supports east and west lineages converging in northern Sweden, the color morphs vary according to latitude suggesting that in some cases environmental influence may override genetic divergence (Merilä and Crnokrak, 2001;McKay and Latta, 2002), or rapid selection on color has taken place since the post-glacial colonization.…”

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confidence: 98%

“…In northern latitudes, glaciation and the retreat of the ice (10 000 years ago) have shaped much of the phylogeographic structuring of populations we see today (Avise, 2000;Hewitt, 2000). The work from Knopp and Merilä (2008) on the post-glacial history of the moor frog (Rana arvalis) improves our understanding of the biogeography and evolutionary history of such northern species and draws attention to the potential consequences of climate change.…”

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confidence: 99%

“…Knopp and Merilä (2008) investigated their history using a combination of nuclear microsatellite and mitochondrial data. Although mitochondrial DNA has long been the tool of choice for phylogeography studies (Avise et al, 1987), nuclear markers (for example, microsatellites) may be advantageous at smaller scales, both spatially and temporally.…”

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confidence: 99%

See 2 more Smart Citations

Post-glacial phylogeography: New insight into an old story: the post-glacial recolonization of European biota

Lesbarrères

2008

Heredity

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Iberian red deer: paraphyletic nature at mtDNAbut nuclear markers support its genetic identity

Carranza

Salinas

Andrés

et al. 2016

Ecology and Evolution

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Red deer populations in the Iberian glacial refugium were the main source for postglacial recolonization and subspecific radiation in north‐western Europe. However, the phylogenetic history of Iberian red deer (Cervus elaphus hispanicus) and its relationships with northern European populations remain uncertain. Here, we study DNA sequences at the mitochondrial control region along with STR markers for over 680 specimens from all the main red deer populations in Spain and other west European areas. Our results from mitochondrial and genomic DNA show contrasting patterns, likely related to the nature of these types of DNA markers and their specific processes of change over time. The results, taken together, bring support to two distinct, cryptic maternal lineages for Iberian red deer that predated the last glacial maximum and that have maintained geographically well differentiated until present. Haplotype relationships show that only one of them contributed to the northern postglacial recolonization. However, allele frequencies of nuclear markers evidenced one main differentiation between Iberian and northern European subspecies although also supported the structure of both matrilines within Iberia. Thus, our findings reveal a paraphyletic nature for Iberian red deer but also its genetic identity and differentiation with respect to northern subspecies. Finally, we suggest that maintaining the singularity of Iberian red deer requires preventing not only restocking practices with red deer specimens belonging to other European populations but also translocations between both Iberian lineages.

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The postglacial recolonization of Northern Europe by Rana arvalis as revealed by microsatellite and mitochondrial DNA analyses

Cited by 34 publications

References 47 publications

Effects of geographic distance, sea barriers and habitat on the genetic structure and diversity of all-hybrid water frog populations

Effects of geographic distance, sea barriers and habitat on the genetic structure and diversity of all-hybrid water frog populations

Post-glacial phylogeography: New insight into an old story: the post-glacial recolonization of European biota

Iberian red deer: paraphyletic nature at mtDNAbut nuclear markers support its genetic identity

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