Analysis of Genetic Variation in Rare Endemic Species Oxytropis chankaensis Jurtz. (Fabaceae) Using RAPD Markers

Analysis of Genetic Variation in Rare Endemic Species Oxytropis chankaensis Jurtz. (Fabaceae)... The method of polymerase chain reaction with random primers (RAPD) was used to assess genetic variation and population differentiation in the rare endemic plant Oxytropis chankaensis Jurtz. (Fabaceae). DNA samples from plants of two isolated populations were compared at 133 loci detected by use of ten primers. Both populations examined were characterized by high polymorphism levels (P 95 = 72.9%; A = 1.92 and P 95 = 74.4%; A = 1.88, respectively). They were also statistically significantly different in the frequencies of most of the amplicons. For each of the plants, unique multilocus RAPD phenotype was established using 17 to 20 RAPD markers. Diagnostic markers were not revealed. The populations were poorly differentiated. On average, the between-population component accounted for about 8% of the variation, while 92% of the variation was detected within populations. High variation along with the low degree of differentiation characteristic of two most geographically remote populations of O. chankaensis can have several explanations, among which a polyploid origin of the species seems to be most important. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Analysis of Genetic Variation in Rare Endemic Species Oxytropis chankaensis Jurtz. (Fabaceae) Using RAPD Markers

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/B:RUGE.0000036518.78118.df
Publisher site
See Article on Publisher Site

Abstract

The method of polymerase chain reaction with random primers (RAPD) was used to assess genetic variation and population differentiation in the rare endemic plant Oxytropis chankaensis Jurtz. (Fabaceae). DNA samples from plants of two isolated populations were compared at 133 loci detected by use of ten primers. Both populations examined were characterized by high polymorphism levels (P 95 = 72.9%; A = 1.92 and P 95 = 74.4%; A = 1.88, respectively). They were also statistically significantly different in the frequencies of most of the amplicons. For each of the plants, unique multilocus RAPD phenotype was established using 17 to 20 RAPD markers. Diagnostic markers were not revealed. The populations were poorly differentiated. On average, the between-population component accounted for about 8% of the variation, while 92% of the variation was detected within populations. High variation along with the low degree of differentiation characteristic of two most geographically remote populations of O. chankaensis can have several explanations, among which a polyploid origin of the species seems to be most important.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Sep 20, 2004

References

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