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The Journal of Heredity 1984:75(4):288-292
© 1984 The American Genetic Association 75:288-292

research-article

A maternal effect influencing larval viability in Drosophila melanogaster

Phillip T. Barnes

Zoology Program, Department of Ecology and Behavioral Biology, University of Minnesota Minneapolis, MN 55455

Abstract

Data are presented indicating the existence of a maternal effect influencing post-hatching larval viability in Drosophila melanogaster. The effect is found to occur among progeny of females homozygous for the in (3R)P gene arrangement from the laboratory population, J2. Offspring from in/in females show a reduction in average viability to less than 50 percent for the period from the first instar to eclosion of the adult. The offspring from females homozygous for the standard gene arrangement have an average viability of greater than 90 percent for the same growth period. Thus, this maternal effect influences the probability of survival for each individual offspring, which is measured as the population character, average viability. Male parent contributions, such as the X chromosome, do not appear to have any effect.


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