Taxonomic revision of taeniid tapeworms

2016 Fiscal Year Final Research Report

• Project/Area Number: 26460503
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Parasitology (including sanitary zoology)
• Research Institution: Asahikawa Medical College
• Principal Investigator: Nakao Minoru 旭川医科大学, 医学部, 准教授 (70155670)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: テニア科条虫 / 分類学的改訂 / Taenia / Hydatigera / Versteria / Echinococcus

Outline of Final Research Achievements

The family Taeniidae of Eucestoda has been divided into four genera (Taenia, Hydatigera, Versteria, and Echinococcus). In this research project, taeniid samples were collected as many as possible, and then subjected into phylogenetic analyses for taxonomic revision of the family. A molecular phylogeny was reconstructed by using the nucleotide sequences of the mitochondrial genomes and the nuclear DNA markers (18S rDNA, pepck, and pold). The analysis showed that members of the genus Taenia are separated into 6 monophyletic clades, suggesting that Taenia should be split into several genera or subgenera. However, additional taxa are required for the taxonomic revision. Two new species of taeniid tapeworms were found during this research project, and described as Taenia lynciscapreoli sp. nov. and Hydatigera kamiyai sp. nov.

Free Research Field

寄生虫学