Asymmetric gene introgression in two closely related Orchis species: evidence from morphometric and genetic analyses

@inproceedings{Jacquemyn2012AsymmetricGI,
  title={Asymmetric gene introgression in two closely related Orchis species: evidence from morphometric and genetic analyses},
  author={Hans Jacquemyn and Rein Brys and Olivier Honnay and Isabel Rold{\'a}n-Ruiz},
  booktitle={BMC Evolutionary Biology},
  year={2012}
}
In food-deceptive orchids of the genera Anacamptis, Neotinea and Orchis floral isolation has been shown to be weak, whereas late-acting reproductive barriers are mostly strong, often restricting hybridization to the F1 generation. Only in a few species hybridization extends beyond the F1 generation, giving rise to hybrid swarms. However, little is known about the abundance of later-generation hybrids and what factors drive their occurrence in hybrid populations. In this study, molecular… CONTINUE READING
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