Genetic and cytogenetic analysis of the "Th-Ps" region of the Y chromosome of Drosophila hydei: evidence for dual functions of the lampbrush loop-forming fertility genes?

Abstract excerpt

Two competing hypotheses have been proposed for the function of the Y chromosomal fertility factors in Drosophila, which form giant lampbrush loops during the primary spermatocyte stage. The first hypothesis suggests a conventional coding function, the second proposes an unconventional gene function mediated through protein binding by nascent transcripts. Therefore, we studied the genetics and cytogenetics of the...

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