Origin of allelic diversity in antirrhinum S locus RNases.

  title={Origin of allelic diversity in antirrhinum S locus RNases.},
  author={Yongbiao Xue and Rosemary Carpenter and H. G. Dickinson and Enrico Coen},
  journal={The Plant cell},
  volume={8 5},
In many plant species, self-incompatibility (SI) is genetically controlled by a single multiallelic S locus. Previous analysis of S alleles in the Solanaceae, in which S locus ribonucleases (S RNases) are responsible for stylar expression of SI, has demonstrated that allelic diversity predated speciation within this family. To understand how allelic diversity has evolved, we investigated the molecular basis of gametophytic SI in Antirrhinum, a member of the Scrophulariaceae, which is closely… CONTINUE READING
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