Abstract
Specimens sampled in Central Mongolia have been examined for the intraspecific polymorphism of the nucleotide sequences of ribosomal DNA internal transcribed spacers (ITS1 + 5.8S + ITS2) of the parasitic nematode Haemonchus contortus. A considerable diversity of haplotypes differing in the nucleotide composition of this DNA region has been observed. The phylogenetic relationships between the haplotypes detected in Central Mongolia and the corresponding sequences from other parts of the nematode distribution area (deposited with the NCBI GenBank) have been analyzed. Significantly different sequences have been found along with the haplotypes already observed in H. contortus or differing from them by one-two nucleotides.
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Original Russian Text © A.P. Aksenov, S.E. Spiridonov, 2013, published in Izvestiya Akademii Nauk, Seriya Biologicheskaya, 2013, No. 1, pp. 43–52.
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Aksenov, A.P., Spiridonov, S.E. Diversity of the rDNA ITS haplotypes of the nematodes Haemonchus contortus (Trichostrongyloidea, Rhabditida) of the same host. Biol Bull Russ Acad Sci 40, 36–44 (2013). https://doi.org/10.1134/S1062359013010032
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DOI: https://doi.org/10.1134/S1062359013010032