Intercontinental dispersal and whole‐genome duplication contribute to loss of self‐incompatibility in a polyploid complex

Brittany Sutherland, Brandie M. Quarles & Laura F. Galloway
Premise of the Study Angiosperm species often shift from self-incompatibility to self-compatibility following population bottlenecks. Across the range of a species, population bottlenecks may result from multiple factors, each of which may affect the geographic distribution and magnitude of mating-system shifts. We describe how intercontinental dispersal and genome duplication facilitate loss of self-incompatibility. Methods Self and outcross pollinations were performed on plants from 24 populations of the Campanula rotundifolia polyploid complex. Populations spanned the geographic...
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