Fruit Flies with Genetic Markers (IMAGE)

University of Rochester

Fruit Flies with Genetic Markers

Caption

The researchers use genetic markers to track segments of the X chromosome that they move from one species of Drosophila (fruit fly) into a different species in order to find X-linked genes that cause male sterility. Genetic markers that affect eye color are located on the X chromosome, so the researchers start with Drosophila mauritiana that have two genetic markers -- giving them dark red eyes, left -- and cross them to white-eyed Drosophila simulans.

Credit

University of Nebraska photos / Rodolfo Villegas

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