Genomes of trombidid mites reveal novel predicted allergens and laterally-transferred genes associated with secondary metabolism

Dong, X and Chaisiri, K and Xia, D and Armstrong, S D and Fang, Y and Donnelly, M J and Kadowaki, T and McGarry, J W and Darby, A C and Makepeace, B L (2018) Genomes of trombidid mites reveal novel predicted allergens and laterally-transferred genes associated with secondary metabolism. GigaScience, 7 (12).

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Abstract

Trombidid mites have a unique lifecycle in which only the larval stage is ectoparasitic. In the superfamily Trombiculoidea (“chiggers”), the larvae feed preferentially on vertebrates, including humans. Species in the genus Leptotrombidium are vectors of a potentially fatal bacterial infection, scrub typhus, which affects 1 million people annually. Moreover, chiggers can cause pruritic dermatitis (trombiculiasis) in humans and domesticated animals. In the Trombidioidea (velvet mites), the larvae feed on other arthropods and are potential biological control agents for agricultural pests. Here, we present the first trombidid mites genomes, obtained both for a chigger, Leptotrombidium deliense, and for a velvet mite, Dinothrombium tinctorium.

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