Near-neighbour optimal outcrossing in the bird-pollinated Anigozanthos manglesii.

ABSTRACT: BACKGROUND AND AIMS:In plants, the spatial and genetic distance between mates can influence reproductive success and offspring fitness. Negative fitness consequences associated with the extremes of inbreeding and outbreeding suggest that there will be an intermediate optimal outcrossing distance (OOD), the scale and drivers of which remain poorly understood. In the bird-pollinated Anigozanthos manglesii (Haemodoraceae) we tested (1) for the presence of within-population OOD, (2) over what scale it occurs, and (3) for OOD under biologically realistic scenarios of multi-donor deposition associated with pollination by nectar-feeding birds. METHODS:We measured the impact of mate distance (spatial and genetic) on seed set, fruit size, seed mass, seed viability and germination success following

SUBMITTER: Ayre BM 

PROVIDER: S-EPMC6798840 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature