Phylogenetic and evolutionary analysis of NBS-encoding genes in Rutaceae fruit crops

We report an evolutionary study of 103 NBS-encoding genes isolated from Poncirus trifoliata, Citrus reticulata and their F1 progeny

Qiang Xu

2010

Scholarcy highlights

  • The nucleotide-binding site leucine-rich repeat genes are the largest class of disease resistance genes in plants
  • We report an evolutionary study of 103 NBS-encoding genes isolated from Poncirus trifoliata, Citrus reticulata and their F1 progeny
  • Phylogenetic analysis classified the 58 NBS genes into nine clades, eight of which were genus specific. This was taken to imply that most of the ancestors of these NBS genes evolved after the genus split
  • The motif pattern of the 58 NBS-encoding genes was consistent with their phylogenetic profile
  • RFLP analysis showed that citrus NBS-encoding genes have been evolving rapidly, and that they are unstable when passed through an intergeneric cross
  • This study provides new insight into the evolution of Rutaceae NBS genes and their behaviour following an intergeneric cross
  • Zhu H, Cannon SB, Young ND, Cook DR Phylogeny and genomic organization of the TIR and non-TIR nucleotide-binding site leucine-rich repeat resistance gene family in Medicago truncatula

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