title: Comparison of 18S ribosomal RNA gene sequences of Eurytrema coelmaticum and Eurytrema pancreaticum.
abstract: The partial 18S rRNA sequences of E. coelmaticum and E. pancreaticum were amplified using conserved primers and an evolutionary tree was constructed using Neighbor-Joining. The percent identity of Eurytrema species with other Dicrocoeliidae varied from 97.5 to 98.2, while the percent identity between the two Eurytrema species was up to 99.3. The tree showed that E. coelmaticum and E. pancreaticum were not situated in the same position, and they formed one cluster with L. collurioni. These results support a confirmation with molecular data that E. coelomaticum and E. pancreaticum are different species which apparently were not seriously questioned in the past.
authors.affiliation: State Key Laboratory on Veterinary Etiological Biology and Gansu Provincial Key Laboratory of Veterinary Parasitology, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, Gansu 730046, China. zhyd9@hotmail.com
authors.forename: Yadong
authors.initials: Y
authors.lastname: Zheng
authors.forename: Xuenong
authors.initials: X
authors.lastname: Luo
authors.forename: Zhizhong
authors.initials: Z
authors.lastname: Jing
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Hu
authors.forename: Xuepeng
authors.initials: X
authors.lastname: Cai
mesh_terms: D000818:Animals; D010802:Phylogeny; D012337:RNA, Ribosomal, 18S / Q000235:genetics*; D013045:Species Specificity; D014200:Trematoda / Q000145:classification* / Q000235:genetics*
chemical_list: D012337:RNA, Ribosomal, 18S