%0 Journal Article %1 defaveri2015temporal %A DeFaveri, Jacquelin %A Merilä, Juha %D 2015 %E Zane, Lorenzo %I Public Library of Science (PLoS) %J PLOS ONE %K census_size demographic_inference effective_population_size island_adaptation parallel_evolution temporal_variation sticklebacks %N 4 %P e0123891 %R 10.1371/journal.pone.0123891 %T Temporal Stability of Genetic Variability and Differentiation in the Three-Spined Stickleback (Gasterosteus aculeatus) %U http://dx.doi.org/10.1371/journal.pone.0123891 %V 10 %X Temporal variation in allele frequencies, whether caused by deterministic or stochastic forces, can inform us about interesting demographic and evolutionary phenomena occur- ring in wild populations. In spite of the continued surge of interest in the genetics of three- spined stickleback (Gasterosteus aculeatus) populations, little attention has been paid towards the temporal stability of allele frequency distributions, and whether there are con- sistent differences in effective size (N e ) of local populations. We investigated temporal sta- bility of genetic variability and differentiation in 15 microsatellite loci within and among eight collection sites of varying habitat type, surveyed twice over a six-year time period. In addi- tion, N e s were estimated with the expectation that they would be lowest in isolated ponds, intermediate in larger lakes and largest in open marine sites. In spite of the marked differ- ences in genetic variability and differentiation among the study sites, the temporal differ- ences in allele frequencies, as well as measures of genetic diversity and differentiation, were negligible. Accordingly, the N e estimates were temporally stable, but tended to be lower in ponds than in lake or marine habitats. Hence, we conclude that allele frequencies in putatively neutral markers in three-spined sticklebacks seem to be temporally stable – at least over periods of few generations – across a wide range of habitat types differing markedly in levels of genetic variability, effective population size and gene flow.

@article{defaveri2015temporal, abstract = {Temporal variation in allele frequencies, whether caused by deterministic or stochastic forces, can inform us about interesting demographic and evolutionary phenomena occur- ring in wild populations. In spite of the continued surge of interest in the genetics of three- spined stickleback (Gasterosteus aculeatus) populations, little attention has been paid towards the temporal stability of allele frequency distributions, and whether there are con- sistent differences in effective size (N e ) of local populations. We investigated temporal sta- bility of genetic variability and differentiation in 15 microsatellite loci within and among eight collection sites of varying habitat type, surveyed twice over a six-year time period. In addi- tion, N e s were estimated with the expectation that they would be lowest in isolated ponds, intermediate in larger lakes and largest in open marine sites. In spite of the marked differ- ences in genetic variability and differentiation among the study sites, the temporal differ- ences in allele frequencies, as well as measures of genetic diversity and differentiation, were negligible. Accordingly, the N e estimates were temporally stable, but tended to be lower in ponds than in lake or marine habitats. Hence, we conclude that allele frequencies in putatively neutral markers in three-spined sticklebacks seem to be temporally stable – at least over periods of few generations – across a wide range of habitat types differing markedly in levels of genetic variability, effective population size and gene flow.}, added-at = {2016-03-22T20:57:21.000+0100}, author = {DeFaveri, Jacquelin and Merilä, Juha}, biburl = {https://www.bibsonomy.org/bibtex/2e1094df53b9d81d0d146001ee3395c46/peter.ralph}, doi = {10.1371/journal.pone.0123891}, editor = {Zane, Lorenzo}, interhash = {1b7d47169306470f8ba32ef910980b2a}, intrahash = {e1094df53b9d81d0d146001ee3395c46}, journal = {{PLOS} {ONE}}, keywords = {census_size demographic_inference effective_population_size island_adaptation parallel_evolution temporal_variation sticklebacks}, month = apr, number = 4, pages = {e0123891}, publisher = {Public Library of Science ({PLoS})}, timestamp = {2016-03-31T22:45:43.000+0200}, title = {Temporal Stability of Genetic Variability and Differentiation in the Three-Spined Stickleback ({{Gasterosteus} aculeatus})}, url = {http://dx.doi.org/10.1371/journal.pone.0123891}, volume = 10, year = 2015 }