Exchanging sequence domains between S-RNases from Nicotiana alata disrupts pollen recognition.

@article{Zurek1997ExchangingSD,
  title={Exchanging sequence domains between S-RNases from Nicotiana alata disrupts pollen recognition.},
  author={Daniel M. Zurek and Beiquan Mou and Brian Beecher and Bruce McClure},
  journal={The Plant journal : for cell and molecular biology},
  year={1997},
  volume={11 4},
  pages={797-808}
}
In self-incompatible plants of the Solanaceae, the specificity of pollen rejection is controlled by a single multiallelic S-locus. Pollen tube growth is inhibited in the style when its single S-allele matches either S-allele present in the diploid pistil. Each S-allele encodes an S-RNase with a unique sequence. S-RNases are secreted into the extra-cellular matrix of the transmitting tract which guides pollen tubes toward the ovary. Although it is known that S-RNases are the determinants of S… CONTINUE READING