wing vein | increased number (with spinP)
wing vein | increased number (with spinΔ2b)
spinP/spinΔ31 and spinΔ31/spinΔ2b transheterozygotes show small amounts of adult escapers, depending on culture conditions. Adult escapers exhibit progressive locomotor defects, such as difficulty in righting after a fall. These defects worsen during the days after emergence and result in death within 5-12 days. The escapers appear morphologically normal except for a subtle, completely penetrant extra wing vein phenotype.
Carries a separable lethal mutation.