S-RNase-based self-incompatibility in Petunia
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S-RNase-based self-incompatibility in Petunia

S-RNase-based self-incompatibility in Petunia
S-RNase-based self-incompatibility in Petunia

In Solanaceae-type self-incompatibility, the specificity of self/non-self interactions between pollen and pistil is controlled by two polymorphic genes at the S-locus, with S-locus F-box gene (SLF or SFB) controlling pollen specificity and S-RNase gene controlling pistil specificity. Meng et al.  summarize their recent results on the identification and functional studies of S-RNase and SLF in Petunia inflata, and a protein-degradation model is proposed to explain the biochemical mechanism for specific rejection of self-pollen tubes by the pistil.

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The Annals of Botany Office is based at the University of Oxford.

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