Recognition and rejection of self in plant self-incompatibility: comparisons to animal histocompatibility.

@article{Nasrallah2005RecognitionAR,
  title={Recognition and rejection of self in plant self-incompatibility: comparisons to animal histocompatibility.},
  author={June B Nasrallah},
  journal={Trends in immunology},
  year={2005},
  volume={26 8},
  pages={412-8}
}
In many flowering plants, intraspecific barriers to self-fertilization ensure outbreeding by interrupting the path of pollen tube growth before egg-sperm interaction. These self-sterility or self-incompatibility (SI) systems are unique among recognition systems, in that they are based on the recognition and rejection of self, rather than non-self. Consistent with multiple evolutionary origins of SI, different plant families use distinct mechanisms for pollen recognition and inhibition. These… CONTINUE READING

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