Variation in reproductive effort, genetic diversity and mating systems across Posidonia australis seagrass meadows in Western Australia.

ABSTRACT: Populations at the edges of their geographical range tend to have lower genetic diversity, smaller effective population sizes and limited connectivity relative to centre of range populations. Range edge populations are also likely to be better adapted to more extreme conditions for future survival and resilience in warming environments. However, they may also be most at risk of extinction from changing climate. We compare reproductive and genetic data of the temperate seagrass, Posidonia australis on the west coast of Australia. Measures of reproductive effort (flowering and fruit production and seed to ovule ratios) and estimates of genetic diversity and mating patterns (nuclear microsatellite DNA loci) were used to assess sexual reproduction in northern range edge (low latitude, e

SUBMITTER: Sinclair EA 

PROVIDER: S-EPMC7454027 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature