Comparative evolutionary rates of introns and exons in murine rodents.

Abstract excerpt

Analysis of DNA sequences of 132 introns and 140 exons from 42 pairs of orthologous genes of mouse and rat was used to compare patterns of evolutionary change between introns and exons. The mean of the absolute difference in length (measured in base pairs) between the two species was nearly five times as high in the case of introns as in the case of exons. The average rate of nucleotide substitution in introns...

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