1921
Volume 75, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Using ITS2 gene sequences, the validity of the tapeworm (Nybelin, 1931), infecting humans on the Pacific coast of South America and in Japan, was assessed. ITS2 sequences of this cestode differed markedly (sequence similarity 79.0–80.2%) from those of the most common human-infecting cestode, the broad fish tapeworm (L.), as well as other four species of , including potential human parasites (, and ) and two species of (sequence similarity 77.5–81.9%). Interspecific sequence similarity between all but one () species was 86.1–99.6%, whereas individual isolates of and exhibited intraspecific sequence similarity of 97.0–98.0% and 98.2–99.9%, respectively. Phylogenetic trees constructed from ITS2 sequences show a markedly distant position of from other species analyzed and also indicate the possible paraphyly of .

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2006-08-01
2017-09-26
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  • Received : 14 Feb 2006
  • Accepted : 05 Apr 2006

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