Origin of a divergent mtDNA lineage of a freshwater snail species, Radix balthica, in Iceland: cryptic glacial refugia or a postglacial founder event?

Bolotov, Ivan N.; Aksenova, Olga V.; Bespalaya, Yulia V.; Gofarov, Mikhail Y.; Kondakov, Alexander V.; Paltser, Inga; Stefánsson, Andri; Travina, Oksana V.; Vinarski, Maxim V.

doi:10.1007/s10750-016-2946-9

Cited by 46 publications

(34 citation statements)

References 104 publications

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“…Dates estimated with calibrations from other invertebrate lineages can also have pronounced error, i.e. a ten-fold difference between sister clades can occur [98]. Also, such rates decrease as a function of time [99–101].…”

Section: Discussionmentioning

confidence: 99%

Phylogeography of the Chydorus sphaericus Group (Cladocera: Chydoridae) in the Northern Palearctic

et al. 2016

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The biodiversity and the biogeography are still poorly understood for freshwater invertebrates. The crustacean Chydorus sphaericus-brevilabris complex (Cladocera: Chydoridae) is composed of species that are important components of Holarctic freshwater food webs. Recent morphological and genetic study of the complex has indicated a substantial species diversity in the northern hemisphere. However, we know little of the geographic boundaries of these novel lineages. Moreover, a large section of the Palearctic remains unexamined at the genetic level. Here we attempt to address the biodiversity knowledge gap for the Chydorus sphaericus group in the central Palearctic and assess its diversity and biogeographic boundaries. We sequenced nuclear (ITS-2) and mitochondrial (COI) gene regions of Chydorus specimens across the Palearctic and compared them with already available Holarctic sequences. We detected six main clades in the C. sphaericus group in the Palearctic, of which two of the groups are novel. Three of the more divergent clades are geographically widespread. The central portion of Eurasia (the Yenisey River basin) appears to be a narrow zone of secondary contact for phylogroups that expanded from European and Beringian refugia. As such, the previously unsampled central Palearctic represents an important region for understanding the evolutionary consequences of Pleistocene climatic oscillations on the Chydorus sphaericus group.

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Section: Discussionmentioning

confidence: 99%

Phylogeography of the Chydorus sphaericus Group (Cladocera: Chydoridae) in the Northern Palearctic

et al. 2016

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“…The Icelandic subterranean amphipods, the only known exception, were able to survive in groundwater reservoirs under glaciers during the Last Glacial Maximum (Kornobis et al 2010). Finally, we could conclude that environmental conditions supporting the survival of freshwater and terrestrial invertebrates were lacking in Iceland during the LGM, and they may have arrived on the island after its deglaciation (pond snails: Bolotov et al 2017, caddisflies: Pálsson et al 2016, bumblebees: this study). This phylogeography-based conclusion is in agreement with paleogeographic modelling that suggests the existence of a continuous, thick ice sheet covering the entire island (Bingham et al 2003, Ingólfsson et al 2010).…”

Section: Discussionmentioning

confidence: 75%

“…Such a phylogeographic pattern has been discovered in several other taxa, and a slowly growing body of molecular research indicates that invertebrate faunas on the North Atlantic Islands have had postglacial allochthonous origin (Pálsson et al 2016, Bolotov et al 2017, Vinarski et al 2017). The Icelandic subterranean amphipods, the only known exception, were able to survive in groundwater reservoirs under glaciers during the Last Glacial Maximum (Kornobis et al 2010).…”

Section: Discussionmentioning

confidence: 79%

“…The majority of recent phylogeographic research supports the tabula rasa hypothesis, which suggests the allochthonous origin of freshwater and terrestrial fauna in Iceland since the last glaciation (Pálsson et al 2016, Bolotov et al 2017). However, the possibility of the long-term survival of several cold-adapted lineages on this island could not be excluded, at least for inhabitants of specific environments, e.g., groundwater (Kornobis et al 2010).…”

Section: Introductionmentioning

confidence: 88%

“…Iceland is a large North Atlantic island, the fauna of which is mostly of Palaearctic origin, with very few lineages that arrived from the Nearctic Region (Gíslason 2005, Gíslason et al 2015, Novichkova et al 2014, Pálsson et al 2016, Bolotov et al 2017). The majority of recent phylogeographic research supports the tabula rasa hypothesis, which suggests the allochthonous origin of freshwater and terrestrial fauna in Iceland since the last glaciation (Pálsson et al 2016, Bolotov et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Widespread continental mtDNA lineages prevail in the bumblebee fauna of Iceland

Potapov

Kondakov

Kolosova

et al. 2018

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Origins of the fauna in Iceland is controversial, although the majority of modern research supports the postglacial colonization of this island by terrestrial invertebrates rather than their long-term survival in glacial refugia. In this study, we use three bumblebee species as a model to test the hypothesis regarding possible cryptic refugia in Iceland and to evaluate a putative origin of recently introduced taxa. Bombus jonellus is thought to be a possible native Icelandic lineage, whereas B. lucorum and B. hortorum were evidently introduced in the second half of the 20th century. These phylogeographic analyses reveal that the Icelandic Bombus jonellus shares two COI lineages, one of which also occurs in populations on the British Isles and in mainland Europe, but a second lineage (BJ-02) has not been recorded anywhere. These results indicate that this species may have colonized Iceland two times and that the lineage BJ-02 may reflect a more ancient Late Pleistocene or Early Holocene founder event (e.g., from the British Isles). The Icelandic populations of both Bombus lucorum and B. hortorum share the COI lineages that were recorded as widespread throughout Eurasia, from the European countries across Russia to China and Japan. The findings presented here highlight that the bumblebee fauna of Iceland comprises mainly widespread ubiquitous lineages that arrived via natural or human-mediated dispersal events from the British Isles or the mainland.

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A comprehensive phylogeography of the widespread pond snail genus Radix revealed restricted colonization due to niche conservatism

Saito

Hirano

et al. 2021

Ecology and Evolution

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To clarify the effect of niche conservatism on evolutionary history, we focused on freshwater snails, which have different ecological and phylogenetic properties from previously tested taxa. We conducted a phylogenetic analysis using 750 lymnaeid individuals from 357 sites of eleven Radix species. Then, we estimated the ancestral distribution using the geographic coordinates and colonization routes. In addition, a statistical test of the colonization distances in the latitudinal and longitudinal directions was performed. We also conducted ecological niche modeling for two widely distributed species using climatic data. Ancestral geographic reconstruction estimated the origin of the genus to be around the Indian subcontinental region and showed that latitudinal immigration distances were shorter than longitudinal immigration distances in the diversification process. Ecological niche models suggested that the current distribution was restricted by climate, with annual mean temperature and precipitation of the driest month as particularly strong factors. Niche conservatism to the climate can affect the diversification of freshwater snails.

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Origin of a divergent mtDNA lineage of a freshwater snail species, Radix balthica, in Iceland: cryptic glacial refugia or a postglacial founder event?

Cited by 46 publications

References 104 publications

Phylogeography of the Chydorus sphaericus Group (Cladocera: Chydoridae) in the Northern Palearctic

Phylogeography of the Chydorus sphaericus Group (Cladocera: Chydoridae) in the Northern Palearctic

Widespread continental mtDNA lineages prevail in the bumblebee fauna of Iceland

A comprehensive phylogeography of the widespread pond snail genus Radix revealed restricted colonization due to niche conservatism

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