RT Journal Article
SR Electronic
T1 Fixation and effective size in a haploid-diploid population with asexual reproduction
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2020.09.17.295618
DO 10.1101/2020.09.17.295618
A1 Kazuhiro Bessho
A1 Sarah P. Otto
YR 2020
UL http://biorxiv.org/content/early/2020/09/18/2020.09.17.295618.abstract
AB The majority of population genetic theory assumes fully haploid or diploid organisms with obligate sexuality, despite complex life cycles with alternating generations being commonly observed. To reveal how natural selection and genetic drift shape the evolution of haploid-diploid populations, we analyze a stochastic genetic model for populations that consist of a mixture of haploid and diploid individuals, allowing for asexual reproduction and niche separation between haploid and diploid stages. Applying a diffusion approximation, we derive the fixation probability and describe its dependence on the reproductive values of haploid and diploid stages, which depend strongly on the extent of asexual reproduction in each phase and on the ecological differences between them.Competing Interest StatementThe authors have declared no competing interest.