Phenotypic selection on flowering phenology and pollination efficiency traits between Primula populations with different pollinator assemblages.

ABSTRACT: Floral traits have largely been attributed to phenotypic selection in plant-pollinator interactions. However, the strength of this link has rarely been ascertained with real pollinators. We conducted pollinator observations and estimated selection through female fitness on flowering phenology and floral traits between two Primula secundiflora populations. We quantified pollinator-mediated selection by subtracting estimates of selection gradients of plants receiving supplemental hand pollination from those of plants receiving open pollination. There was net directional selection for an earlier flowering start date at populations where the dominant pollinators were syrphid flies, and flowering phenology was also subjected to stabilized quadratic selection. However, a later flowering s

SUBMITTER: Wu Y 

PROVIDER: S-EPMC5632619 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature