Department of Invertebrate Zoology, St. Petersburg State University, 7/9 Universitetskaya embankment, 199034, St. Petersburg, Russia.
A.N. Severtsov Institute of Ecology and Evolution, 33 Leninskiy prospect, 119071, Moscow, Russia.
Parasitol Res. 2022 Jul;121(7):2157-2160. doi: 10.1007/s00436-022-07552-1. Epub 2022 May 21.
Gymnophallus deliciosus is a type species of the genus Gymnophallus. We collected this trematode species from gallbladder of Larus argentatus caught in the White Sea (Kandalaksha Bay, Chupa Inlet) and obtained the sequences of its nuclear 18S and 28S rDNA genes. Our recently obtained phylogenetic data support a sister group relationship of this species with G. choledochus. However, other species of the genus Gymnophallus-G. australis (KM246854) and G. minutus (KM268111)-do not branch with the group G. choledochus + G. deliciosus or with each other. Our study revealed that the genus Gynmnophallus is probably a polyphyletic taxon, and the genus affiliation of its representatives should be re-examined in future.
美味裸茎吸虫是裸茎属的模式种。我们从白海（坎达拉克沙湾，楚帕湾）捕获的银鸥胆囊中采集到这种吸虫，并获得了其核 18S 和 28S rDNA 基因序列。我们最近获得的系统发育数据支持该物种与胆总管裸茎吸虫的姐妹群关系。然而，裸茎属的其他物种——澳大利亚裸茎吸虫（KM246854）和微小裸茎吸虫（KM268111）——并不与胆总管裸茎吸虫+美味裸茎吸虫群或彼此分支。我们的研究表明，裸茎属可能是一个多系分类群，其代表的属归属应在未来重新审查。
