Genetic structure of a hybrid zone between two violets, Viola rossii Hemsl. and V. bissetii Maxim.: dominance of F1 individuals in a narrow contact range

@article{Nagano2015GeneticSO,
  title={Genetic structure of a hybrid zone between two violets, Viola rossii Hemsl. and V. bissetii Maxim.: dominance of F1 individuals in a narrow contact range},
  author={Yusuke Nagano and Akira S. Hirao and Takao Itino},
  journal={Plant Species Biology},
  year={2015},
  volume={30},
  pages={237-243}
}
The genetic composition of a hybrid zone can provide insight into the evolution of diversification in plants. [...] Key Result We found that most hybrid individuals (V. bissetii × V. rossii) were of the F1 generation, with a few of the F2 generation. We found no backcrosses. The scarcity of post-F1 hybrids indicates that a species barrier is established between the parental species. The F1-dominated hybrid zone occupied only a narrow, intermediate ecotone between the parental habitats, suggesting that selection…Expand

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