The relative importance of factors determining genetic drift: mating system, spatial genetic structure, habitat and census size in Arabidopsis lyrata
Willi Y and Maattanen K. 2010. The relative importance of factors determining genetic drift: mating system, spatial genetic structure, habitat and census size in Arabidopsis lyrata. New Phytologist
enft,tle iabout their relative importance in nature. We estimatentributiopulation-level tic drifons of Aa. The frossing rate, within-popgenetic structurnd substrate typheterozygosity (s taken to reflect the effective population size (Ne) and the strength of genetic drift. The matucture (9%) and census size (6%)n had a +0.32 higher predicted Hon; the estimated Ne of selfing hat of outcrossing populations.tions with a +0.14 higher HE tha24 higher HE than the least structured population, and the large. This study illustrates the importance of outcrossing, genetic ize – in maintaining HE, and suggests tha hTmating system, dispersal and census size are predicted to determine the magnitude of geetic dri but lits known d the coons of several pfeatures to genet in 18 populatirabidopsis lyratactors were outculation spatial e, census size ae. The expected HE) at 10 microsatellite loci waing system explained most of the variation in HE (60%), followed by substrate (10%), genetic str. The most outcrossing populatioE than the most selfing populatipopulations was less than half t Rocky outcrops supported populan did sandy substrates. The most structured population had a +0.st population had a +0.18 higher HE than the smallest populationstructure and the physical environment – together with census s
- Type
- Published Report
- Authors
- Willi, Yvonne; Maattanen, Kirsti
- Date of Issue
- 2010
- Publisher
- New Phytologist
- Units
- GLKN
- Keywords
- APIS, Arabidopsis lyrata, genetic drift, Great Lakes, Lake Superior