Categories: Behaviour / neurological phene

Mendelian trait/disorder: yes

Mode of inheritance: Autosomal recessive

Disease-related: yes

Key variant known: no

Species-specific symbol: q

Clinical features: Peterson et al. (1981): "Affected animals show severe coarse tremor, especially when they attempt to move. When placed on their backs they are capable of righting themselves, but with some difficulty. They rarely reproduce although a very small number of successful matings have been observed."