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Mitochondrial DNA variation in Atlantic capelin, Mallotus villosus : a comparison of restriction and sequence analyses
Author(s) -
BIRT T. P.,
FRIESEN V. L.,
BIRT R. D.,
GREEN J. M.,
DAVIDSON W. S.
Publication year - 1995
Publication title -
molecular ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.619
H-Index - 225
eISSN - 1365-294X
pISSN - 0962-1083
DOI - 10.1111/j.1365-294x.1995.tb00278.x
Subject(s) - mallotus , biology , mitochondrial dna , cytochrome b , capelin , genetics , restriction site , phylogenetic tree , evolutionary biology , restriction enzyme , gene , ecology , fishery , fish <actinopterygii> , predation
Divergence estimates were calculated using restriction analysis and cytochrome‐ b sequences for capelin Mallotus villosus mitochondrial genomes sampled from Newfoundland and Norwegian populations. On average, pairwise divergence values based on cytochrome‐ b sequences were 2.7 times greater than those based on restriction data. Since the rate of evolution in the cytochrome‐ b gene is low, it appears that restriction analysis underestimated divergence values, possibly due to limited sensitivity of this method when variable nucleotide positions are not randomly distributed. Mitochondrial genotypes were not shared among the two populations.