Restriction Endonuclease Analysis of Highly Repetitive DNA as a Phylogenetic Tool |
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Authors: | VV Grechko LV Fedorova AN Fedorov SYa Slobodyanyuk DM Ryabinin MN Melnikova AA Bannikova AA Lomov VA Sheremet'eva VA Gorshkov GA Sevostyanova SK Semenova AP Ryskov BM Mednikov IS Darevsky |
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Institution: | (1) Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 117984, Russia, RU;(2) Institute of Molecular Genetics, Russian Academy of Sciences, Moscow 123182, Russia, RU;(3) Institute of Limnology, Siberian Branch of the Russian Academy of Sciences, Irkutsk 664033, Russia, RU;(4) Institute of Gene Biology, Russian Academy of Sciences, Moscow 117984, Russia, RU;(5) Belozersky Institute of Physico-chemical Biology, Lomonosov Moscow State University, Moscow 118899, Russia, RU;(6) Faculty of Biology, Lomonosov Moscow State University, Moscow 118899, Russia, RU;(7) Lenin Pedagogical State University, Moscow 119243, Russia, RU;(8) Zoological Institute, Russian Academy of Sciences, St. Petersburg, 199034, Russia, RU |
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Abstract: | Multiple band patterns of DNA repeats in the 20–500-nucleotide range can be detected by digesting genomic DNA with short—cutting
restriction endonucleases, followed by end labeling of the restriction fragments and fractionation in nondenaturing polyacrylamide
gels. We call such band patterns obtained from genomic DNA ``taxonprints' (Fedorov et al. 1992). Here we show that taxonprints
for the taxonomic groups studied (mammals, reptiles, fish, insects—altogether more than 50 species) have the following properties:
(1) All individuals from the same species have identical taxonprints. (2) Taxonprint bands can be subdivided into those specific
for a single species and those specific for groups of closely related species, genera, and even families. (3) Each restriction
endonuclease produces unique band patterns; thus, five to ten restriction enzymes (about 100 bands) may be sufficient for
a statistical treatment of phylogenetic relationships based on polymorphisms of restriction endinuclease sites. We demonstrate
that taxonprint analysis allows one to distinguish closely related species and to establish the degree of similarity among
species and among genera. These characteristics make taxonprint analysis a valuable tool for taxonomic and phylogenetic studies.
Received: 10 February 1997 / Accepted: 10 March 1997 |
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Keywords: | : Repetitive DNA sequences — Molecular phylogeny — Lacertidae — Mammalia — Taxonprint |
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