OMIA:002630-461220 : Tolerance to batrachotoxin (BTX) in Aleadryas rufinucha

In other species: , , blue-capped ifrita , , Rusty pitohui , Black pitohui

Categories: Nervous system phene , Muscle phene

Links to MONDO diseases: No links.

Mendelian trait/disorder: unknown

Considered a defect: no

Cross-species summary: Batrachotoxin (BTX) is a cardio- and neurotoxic steroidal alkaloid found in beetles, birds and frogs. BTX binds to voltage-gated sodium ion channels (coded for by SCN genes), leading to muscle paralysis and death. Several species of animals with a tolerance or auto-resistance to BTX, acquire BTX in their diet and transport BTX to their skin and/or feathers as a defence mechanism or possible parasite deterrence.


2023 Bodawatta, K.H., Hu, H., Schalk, F., Daniel, J.M., Maiah, G., Koane, B., Iova, B., Beemelmanns, C., Poulsen, M., J√łnsson, K.A. :
Multiple mutations in the Nav1.4 sodium channel of New Guinean toxic birds provide auto-resistance to deadly batrachotoxin. Mol Ecol :, 2023. Pubmed reference: 36779590 . DOI: 10.1111/mec.16878.

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  • Created by Imke Tammen2 on 17 Feb 2023