Genetic variation ofTaenia pisiformiscollected from Sichuan, China, based on the mitochondrial cytochrome b gene
Yang D, Ren Y, Fu Y, Xie Y, Nie H, Nong X, Gu X, Wang S, Peng X, Yang G.
Abstract
Taeniapisiformisis one of the most important parasites of canines and rabbits.T.pisiformiscysticercus (the larval stage) causes severe damage to rabbit breeding, which results in huge economic losses. In this study, thegeneticvariationofT.pisiformiswas determined inSichuanProvince,China. Fragments of themitochondrialcytochromeb(cytb) (922 bp)genewere amplified in 53 isolates from 8 regions ofT.pisiformis. Overall, 12 haplotypes were found in these 53 cytb sequences. Moleculargeneticvariations showed 98.4%geneticvariationderived from intra-region. FST and Nm values suggested that 53 isolates were not genetically differentiated and had low levels ofgeneticdiversity. Neutrality indices of the cytb sequences showed the evolution ofT.pisiformisfollowed a neutral mode. Phylogenetic analysis revealed no correlation between phylogeny and geographic distribution. These findings indicate that 53 isolates ofT.pisiformiskeep a lowgeneticvariation, which provide useful knowledge for monitoring changes in parasite populations for future control strategies.
Copyright© 2013, Korean Society for Parasitology and Tropical Medicine
Korean J Parasitol.2013 Aug;51(4):449-52. doi: 10.3347/kjp.2013.51.4.449. Epub 2013 Aug 30.
Read full text:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3770876/
