Population differences in self-fertility in the "self-incompatible" milkweed Asclepias exaltata (Asclepiadaceae).

@article{Lipow1999PopulationDI,
  title={Population differences in self-fertility in the "self-incompatible" milkweed Asclepias exaltata (Asclepiadaceae).},
  author={Sara R. Lipow and Steven B. Broyles and Robert E. Wyatt},
  journal={American journal of botany},
  year={1999},
  volume={86 8},
  pages={
          1114-20
        }
}
Individual plants of Asclepias exaltata (Asclepiadaceae) typically express an unusual self-incompatibility system under single-gene control. Hand-pollinations performed in six natural populations detected occasional self-fertile plants. The frequency of self-fertile individuals ranged from 0 to 34.0% and differed significantly among populations. Self-fertility appears to be under genetic control, as the ability of most plants (80.0 %) to set fruit following self-pollinations was identical under… Expand
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