Contrasting evolutionary patterns of the Rp1 resistance gene family in different species of Poaceae.

@article{Luo2011ContrastingEP,
  title={Contrasting evolutionary patterns of the Rp1 resistance gene family in different species of Poaceae.},
  author={Sha Luo and Junhua Peng and Kunpeng Li and Min Wang and Hanhui Kuang},
  journal={Molecular biology and evolution},
  year={2011},
  volume={28 1},
  pages={313-25}
}
Disease-resistance genes (R-genes) in plants show complex evolutionary patterns. We investigated the evolution of the Rp1 R-gene family in Poaceae, and 409 Rp1 fragments were sequenced from 21 species. Our data showed that the common ancestor of Poaceae had two Rp1 loci, but the number of Rp1 locus in extant species varies from one to five. Some wheat and Zea genotypes have dozens of Rp1 homologues in striking contrast to one or two copies in Brachypodium distachyon. The large number of diverse… CONTINUE READING
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