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The Journal of Heredity 1988:79(6):444-447
© 1988 The American Genetic Association 79:444-447

research-article

Changes in Extra Bristles in a Population of Drosophila Maintained by Isofemale Lines

E. García-Vázquez, and J. Rubio

Departamento de Biología Funcional, Facultad de Medicina, Universidad de Ovie-do Spain

Address reprint requests to Dr. García-Vázquez, Departmento Interfacultativo de Genética, Facultad de Medicina, Universidad de Oviedo, C/Julián Clavería, s/n 33006 Oviedo, Spain.

Abstract

Fifty-five isofemale lines of Drosophila melanogaster that revealed a high phenotypic variation in dorsocentral and scutellar extra bristles have been maintained for 23 generations. Although the mean penetrance and positional specificity of the extra bristles have not changed in the population as a whole, significant changes have been observed in most Individual isofemale lines. The genetic determination of the number and position of extra bristles is discussed.


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