Morphometric Traits in Drosophila Popualtions: Analysis of Variation in Reciprocal Cross Progeny

Reciprocal cross effects (i.e., differences between reciprocal hybrids that are developed by reversing the strains from which the dam and the sire are taken) are commonly used as a measure of sex-linkage or maternal effects. Morphometric traits were studied in a cross between two geographic populations of Drosophila kikkawai, i.e. a northern and southern. Average values in the F 1 was similar and close to the midparent value. A clear maternal genotype effect was, however, observed for all traits between reciprocal F1s.