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DNA Evolution and Colonization Sequence of Island Lizards in Relation to Geological History: Mtdna Rflp, Cytochrome B, Cytochrome Oxidase, 12s RRNA Sequence, and Nuclear Rapd Analysis
Roger S. Thorpe, Duncan P. McGregor, Alastair M. Cumming and William C. Jordan
Vol. 48, No. 2 (Apr., 1994), pp. 230-240
Published by: Society for the Study of Evolution
Stable URL: http://www.jstor.org/stable/2410090
Page Count: 11
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A novel source of nuclear DNA information from random amplified polymorphisms (RAPD) and a wide-range mitochondrial DNA information (cytochrome b, cytochrome oxidase, and 12s rRNA sequence, RFLP from 4-base and 6-base recognition endonucleases) are used to reconstruct the population phylogeny of the western Canary Island lizard, Gallotia galloti, which, for geological reasons, has been subject to dispersal but not vicariance. Interpretation of DNA phylogenies in terms of colonization sequence indicates that G. galloti arose in Tenerife and dispersed westward in two independent pathways: north from north Tenerife to La Palma, and south from south Tenerife to Gomera to Hierro. The direction and timing of colonization by DNA divergence is entirely compatible with geological time and sequence of island origin.
Evolution © 1994 Society for the Study of Evolution