Salivary gland chromosome variation in the Drosophila affinis subgroup. IV. The short arm of the X chromosome in "western" and "eastern" Drosophila athabasca.
D000818:Animals; D005075:Biological Evolution; D002869:Chromosome Aberrations; D002875:Chromosomes; D004330:Drosophila; D014644:Genetic Variation; D010784:Photomicrography; D012469:Salivary Glands / Q000166:cytology