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Genetic characteristics of Chinese isolates of the tapeworm Taenia pisiformis based on two mitochondrial genes

Published online by Cambridge University Press:  02 April 2014

D.Y. Yang
Affiliation:
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an625014, China
Y.J. Ren
Affiliation:
Sichuan Academy of Animal Science, Chengdu, 610066, China
Y. Fu
Affiliation:
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an625014, China
Y. Xie
Affiliation:
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an625014, China
X. Nong
Affiliation:
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an625014, China
X.B. Gu
Affiliation:
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an625014, China
S.X. Wang
Affiliation:
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an625014, China
X.R. Peng
Affiliation:
Department of Chemistry, College of Life and Basic Science, Sichuan Agricultural University, Ya'an625014, China
G.Y. Yang*
Affiliation:
Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an625014, China
*

Abstract

Cysticercosis is caused by infections with embryonated eggs of the tapeworm Taenia pisiformis. Knowledge of the genetic characteristics of T. pisiformis could be applied to study the epidemiology and transmission of this parasite. In this study, 61 isolates of intraperitoneal cysticerci from eight geographically distinct regions in Sichuan province, China, were subjected to a molecular analysis in order to determine their intra-regional genetic characteristics. Partial sequences of the mitochondrial cytochrome c oxidase subunit I (cox1, 1427 bp) and NADH dehydrogenase 1 (nad1, 738 bp) were concatenated. Five haplotypes were identified, and 89.04% of total genetic variation was found in collections of T. pisiformis isolates from a single region. According to the phylogenetic reconstruction, the T. pisiformis isolates from eight regions did not form geographical clusters. Our study highlights the genetic characteristics of T.pisiformis with the aim of accelerating the genetic research and control of cysticercosis.

Type
Short Communication
Copyright
Copyright © Cambridge University Press 2014 

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