The Role of a Pollen-Expressed Cullin1 Protein in Gametophytic Self-Incompatibility in Solanum

@article{Li2013TheRO,
  title={The Role of a Pollen-Expressed Cullin1 Protein in Gametophytic Self-Incompatibility in Solanum},
  author={Wentao Li and Roger T. Chetelat},
  journal={Genetics},
  year={2013},
  volume={196},
  pages={439 - 442}
}
We previously isolated a pollen factor, ui6.1, which encodes a Cullin1 protein (CUL1) that functions in unilateral interspecific incompatibility (UI) in Solanum. Here we show that CUL1 is also required for pollen function in self-incompatibility (SI). We used RNA interference (RNAi) to reduce CUL1 expression in pollen of Solanum arcanum, a wild SI tomato relative. Hemizygous T0 plants showed little or no transmission of the transfer DNA (T-DNA) through pollen when crossed onto nontransgenic SI… 

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