DOI: 10.5061/dryad.vh6pd
title: Data from: Hidden founder effects: small-scale spatial genetic structure in recently established populations of the grassland specialist plant Anthyllis vulneraria

description: The long-term establishment success of founder plant populations has been
 commonly assessed based on the measures of population genetic diversity
 and among population genetic differentiation, with founder populations
 expected to carry sufficient genetic diversity when population
 establishment is the result of many colonists from multiple source
 populations (the ‘migrant pool’ colonization model). Theory, however,
 predicts that, after initial colonization, rapid population expansion may
 result in a fast increase in the extent of spatial genetic structure
 (SGS), independent of extant genetic diversity. This SGS can reduce
 long-term population viability by increasing inbreeding. Using 12
 microsatellite markers, we inferred colonization patterns in four recent
 populations of the grassland specialist plant Anthyllis vulneraria and
 compared the extent of SGS between recently established and old
 populations. Assignment analyses of the individuals of recent population
 based on the genetic composition of nine adjacent putative source
 populations suggested the occurrence of the ‘migrant pool’ colonization
 model, further confirmed by high genetic diversity within and low genetic
 differentiation among recent populations. Population establishment,
 however, resulted in the build-up of strong SGS, most likely as a result
 of spatially restricted recruitment of the progeny of initial colonists.
 Although reduced, significant SGS was nonetheless observed to persist in
 old populations. The presence of SGS was in all populations associated
 with elevated inbreeding coefficients, potentially affecting the long-term
 viability of these populations. In conclusion, this study illustrates the
 importance of studying SGS next to population genetic diversity and
 differentiation to adequately infer colonization patterns and long-term
 establishment success of plant species.
description: Sampling
 locationsThis file contains the
 GPS sampling locations of all geographically measured Anthyllis vulneraria
 plants (N=730). Coordinates are given in both Lambert72 and in WGS84.
 Plant ID's correspond to those in the 'GenAlEx input
 file'.GenAlEx input
 fileThis file contains the
 raw microsatellite (SSR) dataset for all sampled Anthyllis vulneraria
 individuals (N=896) in GenAlEx format. This file can be converted to other
 formats using the program GenAlEx.Spagedi input
 filesThis file contains all
 eight input files used for the Spagedi analyses on the georeferenced
 Anthyllis vulneraria populations. This file contains both microsatellite
 (SSR) data and geographical location data.Programita input
 filesThis file contains all
 eight input files used for the Programita point-pattern analyses on the
 georeferenced Anthyllis vulneraria populations. This file contains
 geographical location data.STRUCTURE input
 filesThis file contains all
 eight input files used for the STRUCTURE analyses on the georeferenced
 Anthyllis vulneraria populations. This file contains microsatellite (SSR)
 data. This file can be converted to other formats using the program
 GenAlEx.R script DAPC
 analysisThis file contains the R
 script used for the DAPC assignment analyses to assign Anthyllis
 vulneraria individuals of recent populations to those of sampled old
 populations using the adegenet R package.R DAPC input file
 (Anthyllis_new)This file corresponds to
 the 'Anthyllis_new.GEN' dataset mentioned in the 'R script
 DAPC analysis' document.R DAPC input file
 (Anthyllis_old)This file corresponds to
 the 'Anthyllis_old.GEN' dataset mentioned in the 'R script
 DAPC analysis' document.