Reconstruction of the phylogeny of the genus Triticum from variation in repeated nucleotide sequences
1992
Dvorak, J. | Zhang, H.B.
The potential of variation in repeated nucleotide sequences as a tool for phylogenetic studies was examined by investigating the phylogeny of 13 diploid species of the genus Triticum L. sensu Bowden. Low intraspecific variation in repeated nucleotide sequence families in Triticum indicated that restriction fragment profiles of repeated nucleotide sequences in Southern blots are reliable and uniform characteristics of each species. Cloned repeated nucleotide sequences were hybridized with Southern blots of DNAs of the Triticum species and the outgroup, Lophopyrum elongatum (Host) A. Love. The presence or absence of bands in the Southern blot autoradiograms was considered to be a character for phylogenetic analysis. A most parsimonious tree was resolved with the PAUP version 3.0L computer package. The tree was consistent with cytotaxonomic and evolutionary data available on the species.
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