Quantifying natural seasonal variation in mutation parameters with mutation accumulation lines.

ABSTRACT: Mutations create novel genetic variants, but their contribution to variation in fitness and other phenotypes may depend on environmental conditions. Furthermore, natural environments may be highly heterogeneous. We assessed phenotypes associated with survival and reproductive success in over 30,000 plants representing 100 mutation accumulation lines of Arabidopsis thaliana across four temporal environments at a single field site. In each of the four assays, environmental variance was substantially larger than mutational variance. For some traits, whether mutational variance was significantly varied between seasons. The founder genotype had mean trait values near the mean of the distribution of the mutation accumulation lines in all field experiments. New mutations also contributed m

SUBMITTER: Rutter MT 

PROVIDER: S-EPMC6010865 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature