10.5061/DRYAD.8N2F2
Beysard, Mathias
Swiss Institute of Bioinformatics
University of Bern
Heckel, Gerald
Swiss Institute of Bioinformatics
University of Bern
Data from: Structure and dynamics of hybrid zones at multiple stages of
speciation in the common vole (Microtus arvalis)
Dryad
dataset
2013
Microtus arvalis
2013-12-05T19:46:28Z
2013-12-05T19:46:28Z
en
https://doi.org/10.1111/mec.12613
181078 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The genetic structure and dynamics of hybrid zones provides crucial
information for the understanding of the processes and mechanisms of
evolutionary divergence and speciation. In general, higher levels of
evolutionary divergence between taxa are more likely to be associated with
reproductive isolation and may result in suppressed or strongly restricted
hybridization. In this study, we examined the structure and processes in
two secondary contact zones between three deep evolutionary lineages in
the common vole (Microtus arvalis). Differences in divergence times
between the lineages have the potential to shed light on different stages
of reproductive isolation and thus provide information on the ongoing
speciation process in M. arvalis. We examined more than 800 individuals
for mitochondrial (mtDNA), Y-chromosome and autosomal markers, and used
assignment and cline analysis methods to characterize the extent and
direction of gene flow in the contact zones. Introgression of both
autosomal and mtDNA markers in a relatively broad area of admixture
indicates selectively neutral hybridization between the least-divergent
lineages (Central and Eastern) without evidence for partial reproductive
isolation. In contrast, a very narrow area of hybridization, shifts in
marker clines and the quasi-absence of Y-chromosome introgression support
a moving hybrid zone and unidirectional selection against male hybrids
between the lineages with older divergence (Central and Western). Data
from a replicate sampling transect provided further support for
non-neutral processes in this hybrid zone and suggests additionally a role
for the landscape history in the extent of the movement and shaping of
gene flow profiles.
Jura1Genotypes of the individuals of the Jura 1 transect. Missing data are
scored by a -9Jura2Genotypes of the individuals of the Jura 2 transect.
Missing data are scored by a -9BavariaGenotypes of the individuals of the
Bavaria transect. Missing data are scored by a -9MtDNA &
YchromsomesMtDNA and Y chromosome origin for each
individuals.MtDNA_Ychr.xlsx
Europe