Inheritance of Mantle Pigmentation Patterns in Bulinus (Physopsis) africanus (Basommatophora:Planorbidae)

Abstract

Two mantle pigmentation patterns of Bulinus (Physopsis) africanus are governed by codominant alleles of one gene. The mantle patterns of the homozygous strains are 1) solid, black pigmentation covering the mantle and 2) mottled, black pigmentation. The mantle pattern of heterozygotes is intermediate between the two homozygous patterns.