S-RNase uptake by compatible pollen tubes in gametophytic self-incompatibility

  title={S-RNase uptake by compatible pollen tubes in gametophytic self-incompatibility},
  author={Doan-Trung Luu and Xike Qin and David Morse and Mario Cappadocia},
Many flowering plants avoid inbreeding through a genetic mechanism termed self-incompatibility. An extremely polymorphic S-locus controls the gametophytic self-incompatibility system that causes pollen rejection (that is, active arrest of pollen tube growth inside the style) when an S-allele carried by haploid pollen matches one of the S-alleles present in the diploid style. The only known product of the S-locus is an S-RNase expressed in the mature style. The pollen component to this cell–cell… CONTINUE READING

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