10.5061/DRYAD.72CG113
Faria, Rui
University of Sheffield
Chaube, Pragya
University of Sheffield
Morales, Hernan E.
University of Gothenburg
Larsson, Tomas
University of Gothenburg
Lemmon, Alan R.
Florida State University
Lemmon, Emily Moriarty
Florida State University
Rafajlovic, Marina
University of Gothenburg
Panova, Marina
University of Gothenburg
Ravinet, Mark
University of Oslo
Johannesson, Kerstin
University of Gothenburg
Westram, Anja M.
University of Sheffield
Butlin, Roger K.
University of Sheffield
University of Gothenburg
Data from: Multiple chromosomal rearrangements in a hybrid zone between
Littorina saxatilis ecotypes
Dryad
dataset
2018
Molluscs
Littorina saxatilis
2018-10-09T17:07:04Z
2018-10-09T17:07:04Z
en
https://doi.org/10.1111/mec.14972
8267625 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Both classical and recent studies suggest that chromosomal inversion
polymorphisms are important in adaptation and speciation. However, biases
in discovery and reporting of inversions make it difficult to assess their
prevalence and biological importance. Here, we use an approach based on
linkage disequilibrium among markers genotyped for samples collected
across a transect between contrasting habitats to detect chromosomal
rearrangements de novo. We report 17 polymorphic rearrangements in a
single locality for the coastal marine snail, Littorina saxatilis.
Patterns of diversity in the field and of recombination in controlled
crosses provide strong evidence that at least the majority of these
rearrangements are inversions. Most show clinal changes in frequency
between habitats, suggestive of divergent selection, but only one appears
to be fixed for different arrangements in the two habitats. Consistent
with widespread evidence for balancing selection on inversion
polymorphisms, we argue that a combination of heterosis and divergent
selection can explain the observed patterns and should be considered in
other systems spanning environmental gradients.
Faria_et_al_Wavefamilies_filtered_GT_FORMATGenotypes of the Wave families.
Europe