Relatedness Among Plants as Measured by the DNA-Agar Technique
- 1 July 1967
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 42 (7), 959-967
- https://doi.org/10.1104/pp.42.7.959
Abstract
An improved method for extraction of plant DNA is described. Quantitative species comparisons based on DNA-DNA hybridization are reported for several members of the family Leguminosea and for barley, wheat and rye. A maximum of about 10% homology in DNA polynucleotide sequences is found between monocotyledons and dicotyledons tested, whereas 20 to 90% homology is observed within a family. Species compared using a DNA fraction enriched for redundant polynucleotide sequences generally appear to be more closely related than when whole DNA is used. DNA-DNA hybridization may be useful in systematic and evolutionary study of plants, and also as a possible screening procedure for interfertility of species.This publication has 11 references indexed in Scilit:
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