Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 23 March 1979:
Vol. 203. no. 4386, pp. 1247 - 1249
DOI: 10.1126/science.424751
Prev | Table of Contents | Next

Articles

Science, Vol 203, Issue 4386, 1247-1249
Copyright © 1979 by American Association for the Advancement of Science

articles

Mitochondrial DNA analyses and the origin and relative age of parthenogenetic lizards (genus Cnemidophorus)

WM Brown and JW Wright

Morphological, karyological, and allozyme analyses indicate that the parthenogenetic lizards Cnemidophorus neomexicanus and diploid C. tesselatus are hybrids formed, respectively, by crosses involving the bisexual species C. tigris and C. inornatus, and C. tigris and C. septemvittatus. Mitochondrial DNA, which is inherited maternally, was obtained from each of these species. Analyses of the mitochondrial DNA's and their restriction endonuclease digestion products by electron microscopy and agarose gel electrophoresis support the hybridization hypothesis by indicating that C. tigris (specifically the subspecies marmoratus) was the maternal parent species for both C. neomexicanus and C. tesselatus. Furthermore, these data imply that these two parthenogenetic species are younger than some races of C. tigris.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The absence of mitochondrial DNA diversity among common laboratory inbred mouse strains.
J.-g. Dai, J.-x. Min, Y.-b. Xiao, X. Lei, W.-h. Shen, and H. Wei (2005)
J. Exp. Biol. 208, 4445-4450
   Abstract »    Full Text »    PDF »
Tandem duplication of D-loop and ribosomal RNA sequences in lizard mitochondrial DNA.
C Moritz and W. Brown (1986)
Science 233, 1425-1427
   Abstract »    PDF »
Evolution of mechanisms controlling mating behavior.
D Crews and M. Moore (1986)
Science 231, 121-125
   Abstract »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)