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DNA-DNA hybridization evidence of the rapid rate of muroid rodent DNA evolution.

Molecular Biology and EvolutionPublished 1 May 1987Open access
François Catzeflis, Frederick H. Sheldon, J. E. Ahlquist, Charles G. Sibley
Citations117
SJR quartileQ1
SJR score4.08
SNIP4.57
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TL;DR

The results agree with previous reports of accelerated DNA evolution in muroid rodents and extend the DNA-DNA hybridization data set of Brownell.

Abstract

Single-copy nuclear DNAs (scnDNAs) of eight species of arvicoline and six species of murine rodents were compared using DNA-DNA hybridization. The branching pattern derived from the DNA comparisons is congruent with the fossil evidence and supported by comparative biochemical, chromosomal, and morphological studies. The recently improved fossil record for these lineages provides seven approximate divergence dates, which were used to calibrate the DNA-hybridization data. The average rate of scnDNA divergence was estimated as 2.5%/Myr. This is approximately 10 times the rate in the hominoid primates. These results agree with previous reports of accelerated DNA evolution in muroid rodents and extend the DNA-DNA hybridization data set of Brownell.

Keywords

Agricultural and Biological SciencesBiochemistry, Genetics and Molecular Biology