| genetic relationships and origin of two geographic groups of the freshwater threespine stickleback, 'hariyo'. | 'hariyo' comprise the southernmost freshwater populations of the threespine stickleback, gasterosteus aculeatus species complex, distributed in central honshu, japan. two geographic groups (gifu and shiga) of the 'hariyo' have been recognized as differing from each other in some morphological and ecological features. in order to elucidate the genetic characteristics and phylogenetic position of these populations, partial sequences of the mitochondrial cytochrome b gene were compared in 123 speci ... | 2003 | 12655188 |