format
The data are stored in an ASCII file using the sequential format for
DNA sequences which is read with `read.dna()'.source
Michaux, J. R., Magnanou, E., Paradis, E., Nieberding, C. and Libois,
R. (2003) Mitochondrial phylogeography of the Woodmouse
(Apodemus sylvaticus) in the Western Palearctic region.
Molecular Ecology, 12, 685--697.