Phylogenetic relationships within the genus Citrus (Rutaceae) and related genera as revealed by RFLP and RAPD analysis

Relationships among 88 accessions representing 45 Citrus species, three man-made hybrids, and six related genera were examined for restriction fragment length polymorphisms

C. T. Federici

2002

Scholarcy highlights

  • Relationships among 88 accessions representing 45 Citrus species, three man-made hybrids, and six related genera were examined for restriction fragment length polymorphisms
  • A measure of relative heterozygosity was estimated based on the mean of the number of fragments per individual per probe-enzyme combination divided by total number of fragments per PEC for all non-hybrid Citrus individuals
  • Most species that have been described in the literature as hybrids had high heterozygosity indices and no unique fragments
  • RFLP and random amplified polymorphic DNA data gave approximately the same results. These data showed C. maxima was affiliated with the papedas C. hongheensis and C. latipes
  • Mandarins did not show strongly supported groupings among themselves, nor with other species. These data showed that several accessions were probably assigned to the wrong species

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