Establishment success and resulting fitness consequences for vole dispersers

Hahne, Joerg; Jenkins, Tania; Halle, Stefan; Heckel, Gerald

doi:10.1111/j.1600-0706.2010.18589.x

Cited by 24 publications

(36 citation statements)

References 53 publications

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“…Multi-locus nuclear microsatellite markers allow the allocation of individuals to genetic clusters whose distributions are highly consistent with mtDNA lineages-except for first evidence of cytonuclear discordance in a few individuals close to the potential contact zones (Braaker and Heckel, 2009). The detected patterns are consistent with male-biased dispersal in the species (Schweizer et al, 2007;Hahne et al, 2011) and relatively complex processes of genetic erosion after colonization of the region (Braaker and Heckel, 2009). However, they may also be explained by an ongoing speciation process and the effect of sex-specific gene flow associated with yet undocumented partial reproductive isolation between the highly divergent evolutionary lineages in M. arvalis.…”

Section: Introductionsupporting

confidence: 62%

“…The width of a cline across a hybrid zone is theoretically shaped by dispersal, which tends to widen it, and selection, which may narrow it (Barton and Hewitt, 1985). In M. arvalis, dispersal is male-biased like in most mammals (Hamilton et al, 2005;Schweizer et al, 2007;Hahne et al, 2011). Thus, without the action of selection, paternally inherited markers are expected to show wider clines across the contact zones than maternally inherited ones.…”

Section: Evidence For Selectionmentioning

confidence: 99%

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Sex-specific clines support incipient speciation in a common European mammal

2013

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Hybrid zones provide excellent opportunities to study processes and mechanisms underlying reproductive isolation and speciation. Here we investigated sex-specific clines of molecular markers in hybrid zones of morphologically cryptic yet genetically highly-diverged evolutionary lineages of the European common vole (Microtus arvalis). We analyzed the position and width of four secondary contact zones along three independent transects in the region of the Alps using maternally (mitochondrial DNA) and paternally (Y-chromosome) inherited genetic markers. Given male-biased dispersal in the common vole, a selectively neutral secondary contact would show broader paternal marker clines than maternal ones. In a selective case, for example, involving a form of Haldane's rule, Y-chromosomal clines would not be expected to be broader than maternal markers because they are transmitted by the heterogametic sex and thus gene flow would be restricted. Consistent with the selective case, paternal clines were significantly narrower or at most equal in width to maternal clines in all contact zones. In addition, analyses using maximum likelihood cline-fitting detected a shift of paternal relative to maternal clines in three of four contact zones. These patterns suggest that processes at the contact zones in the common vole are not selectively neutral, and that partial reproductive isolation is already established between these evolutionary lineages. We conclude that hybrid zone movement, sexual selection and/or genetic incompatibilities are likely associated with an unusual unidirectional manifestation of Haldane's rule in this common European mammal.

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Section: Introductionsupporting

confidence: 62%

Section: Evidence For Selectionmentioning

confidence: 99%

Sex-specific clines support incipient speciation in a common European mammal

2013

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“…), MAR3, 12, 16, 63, 76, 80 and AVP‐INb (Walser & Heckel ; Hahne et al . ). PCR amplification was performed using the Qiagen Multiplex Kit according to the protocol described in Braaker & Heckel ().…”

Section: Methodsmentioning

confidence: 97%

Deep mitochondrial introgression and hybridization among ecologically divergent vole species

et al. 2012

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The completion of speciation is typically difficult to ascertain in rapidly diverging taxa but the amount of hybridization and gene flow in sympatry or parapatry contains important information about the level of reproductive isolation achieved. Here, we examined the progress in speciation between the Mediterranean (Microtus duodecimcostatus) and the Lusitanian pine vole (M. lusitanicus), which are part of the most rapid radiation of species known in mammals. These two Iberian pine voles are classified as separate species because of differences in morphology and ecology, but relatively many ambiguous individuals can be found in sympatric conditions. Our phylogenetic analyses of rangewide data from the mitochondrial cytochrome b gene (mtDNA) demonstrated high levels of diversity and a basal separation in two parapatric lineages. However, mtDNA affiliation was at odds with morphological classification or geographical distribution of the taxa. In contrast, statistical analyses of microsatellites (nucDNA) showed two clear genetic clusters in allopatry and sympatry generally matching morphological classification. This cytonuclear discordance over a large geographic area suggests historical introgression of mtDNA from M. duodecimcostatus to M. lusitanicus. There was statistical evidence for at least two recent hybrids in the sympatry zone but gene flow is apparently low given clear-cut differences in nucDNA. Our results indicate a relatively advanced speciation process in these Iberian pine voles without fully established reproductive isolation. This situation enables use of combined population genomic and experimental approaches for the separation of patterns and mechanisms in the ongoing explosive diversification of these and other Arvicoline rodents in the future.

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“…Repetitions of previously scored genotypes were performed to ensure genotyping consistency (Hahne et al. ).…”

Section: Methodsmentioning

confidence: 99%

Spatiotemporal dynamics of Puumala hantavirus associated with its rodent host, Myodes glareolus

Melo

Ali

Freise

et al. 2015

Evolutionary Applications

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Many viruses significantly impact human and animal health. Understanding the population dynamics of these viruses and their hosts can provide important insights for epidemiology and virus evolution. Puumala virus (PUUV) is a European hantavirus that may cause regional outbreaks of hemorrhagic fever with renal syndrome in humans. Here, we analyzed the spatiotemporal dynamics of PUUV circulating in local populations of its rodent reservoir host, the bank vole (Myodes glareolus) during eight years. Phylogenetic and population genetic analyses of all three genome segments of PUUV showed strong geographical structuring at a very local scale. There was a high temporal turnover of virus strains in the local bank vole populations, but several virus strains persisted through multiple years. Phylodynamic analyses showed no significant changes in the local effective population sizes of PUUV, although vole numbers and virus prevalence fluctuated widely. Microsatellite data demonstrated also a temporally persisting subdivision between local vole populations, but these groups did not correspond to the subdivision in the virus strains. We conclude that restricted transmission between vole populations and genetic drift play important roles in shaping the genetic structure and temporal dynamics of PUUV in its natural host which has several implications for zoonotic risks of the human population.

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Establishment success and resulting fitness consequences for vole dispersers

Cited by 24 publications

References 53 publications

Sex-specific clines support incipient speciation in a common European mammal

Sex-specific clines support incipient speciation in a common European mammal

Deep mitochondrial introgression and hybridization among ecologically divergent vole species

Spatiotemporal dynamics of Puumala hantavirus associated with its rodent host, Myodes glareolus

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