A Threefold Genetic Allee Effect: Population Size Affects Cross-Compatibility, Inbreeding Depression and Drift Load in the Self-Incompatible Ranunculus reptans

From: Genetics | Date: March 1, 2005| Author: Fischer, Markus; Van Buskirk, Josh; Willi, Yvonne | Copyright information

ABSTRACT

A decline in population size can lead to the loss of allelic variation, increased inbreeding, and the accumulation of genetic load through drift. We estimated the fitness consequences of these processes in offspring of controlled within-population crosses from 13 populations of the self-incompatible, clonal plant Ranunculus reptans. We used allozyme allelic richness as a proxy for long-term population size, which was positively correlated with current population size. Crosses ...

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