High frequency of knockdown resistance mutations in the para gene of cat flea (Ctenocephalides felis) samples collected from goats

Fleas are ectoparasites of mammals and birds. In livestock such as sheep and goat, flea bites cause many clinical signs. Several types of insecticides including pyrethroids are used to struggle against fleas. The widespread use of these insecticides causes an increase in the number of resistant indi...

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Bibliographic Details
Published in:Parasitology research (1987) 2020-07, Vol.119 (7), p.2067-2073
Main Authors: Erkunt Alak, Sedef, Köseoğlu, Ahmet Efe, Kandemir, Çağrı, Taşkın, Turğay, Demir, Samiye, Döşkaya, Mert, Ün, Cemal, Can, Hüseyin
Format: Article
Language:English
Subjects:
Amino acids
Animal bites
Arthropods and Medical Entomology - Original Paper
Biomedical and Life Sciences
Biomedicine
Birds
Ctenocephalides felis
Cypermethrin
Ectoparasites
Farms
Fleas
Genes
Genetic aspects
Goats
Immunology
Insecticides
Livestock
Medical Microbiology
Microbiology
Mutation
ParA gene
Pyrethroids
Siphonaptera
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Summary:Fleas are ectoparasites of mammals and birds. In livestock such as sheep and goat, flea bites cause many clinical signs. Several types of insecticides including pyrethroids are used to struggle against fleas. The widespread use of these insecticides causes an increase in the number of resistant individuals in flea populations. T929V and L1014F mutations corresponding to pyrethroid resistance have been found in the para gene of cat fleas. We aimed to investigate T929V and L1014F mutations in flea samples (n:162) collected from goats in seven different farms where cypermethrin, a synthetic pyrethroid, had been used intensively. To achieve this aim, collected flea samples were morphologically identified under a stereo microscope and DNA isolation was conducted by HotSHOT method. Later, a bi-PASA targeting the para gene was applied to identify both mutations in corresponding samples. According to the results obtained, all fleas were Ctenocephalides felis . Frequencies of T929V and L1014F mutations in fleas were 92.6% (150/162) and 95.7% (155/162), respectively. In conclusion, the frequency of mutations related to pyrethroid resistance was very high in the fleas collected from all the farms and it was thought that the high frequency of these mutations can be attributed to intensive use of pyrethroids.
ISSN:0932-0113
1432-1955
DOI:10.1007/s00436-020-06714-3