Blood-feeding adaptations and virome assessment of the poultry red mite Dermanyssus gallinae guided by RNA-seq
Dermanyssus gallinae is a blood-feeding mite that parasitises wild birds and farmed poultry.
Ribeiro, José M.; Hartmann, David; Bartošová-Sojková, Pavla; Debat, Humberto Julio; Moos, Martin; Šimek, Petr; Fara, Jiří; Palus, Martin; Kučera, Matěj; Hajdušek, Ondřej
Its remarkably swift processing of blood, together with the capacity to blood-feed during most developmental stages, makes this mite a highly debilitating pest. To identify specific adaptations to digestion of a haemoglobin-rich diet, we constructed and compared transcriptomes from starved and blood-fed stages of the parasite and identified midgut-enriched transcripts. We noted that midgut transcripts encoding cysteine proteases were upregulated with a blood meal. Mapping the full proteolytic apparatus, we noted a reduction in the suite of cysteine proteases, missing homologues for Cathepsin B and C.
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