| planarian mitochondria sequence heterogeneity: relationships between the type of cytochrome c oxidase subunit i gene sequence, karyotype and genital organ. | freshwater planarians dugesia japonica from three localities were examined for cytochrome c oxidase subunit i (coi) gene sequence, karyotype and the presence of genital organ. the planarians from mt fujiwara in japan were composed of two different groups; one revealed inter- and intraindividual coi gene heterogeneity, while another revealed no sequence heterogeneity. the sequence in planarians from mt alishan in taiwan was homogeneous, while that from the kenting national park in taiwan revealed ... | 1997 | 9061940 |