Evolutionary relationship among Bothriocephalusparasitized in grass carp Ctenopharyngodon idellus (C. et V.), common carp Cyprinus carpio L. and Ma Kou Yu Opsariichthys bidens Günther in China

Evolutionary relationship among Bothriocephalusparasitized in grass carp Ctenopharyngodon idellus (C. et V.), common carp Cyprinus carpio L. and Ma Kou Yu Opsariichthys bidens Günther in China

RAPD was used to analyze the polymorphism of \%Bothriocephalus\% parasitic in grass carp and common carp from Guangdong, Fujian and Gansu and in Ma Kou Yu from Fujian. Though there exist differences in geographical distribution and host specificity between \%Bothriocephalus\% parasitic in grass carp and common carp, RAPD analysis shows high similarity (72.3%-96.3%) in DNA between them, whereas between \%Bothriocephalus\% parasitic in Ma Kou Yu and in grass carp and common carp low similarity (24%-28.2%) was noticed. Hence, \%Bothriocephalus\% parasitic in Ma Kou Yu and \%Bothriocephalus\% parasitic in grass carp and common carp should be regarded as separate species.