Expression of immune response genes in peripheral blood of cattle infested with Rhipicephalus microplus.
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The bovine tick Rhipicephalus microplus is responsible for severe economic losses in tropical cattle production. Bos indicus breeds are more resistant to tick infestations than are Bos taurus breeds, and the understanding of the physiological mechanisms involved in this difference is important for the development of new methods of parasite control. We evaluated differences in the transcript expression of genes related to the immune response in the peripheral blood of cattle previously characterized as resistant or susceptible to tick infestation. We detected a correlation between T ?? cell activity and the immunological mechanisms that result in a higher resistance to R. microplus in cattle.
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Tick, Real-time polymerase chain reaction, Bos Indicus, Bos Taurus