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The Journal of Heredity 1981:72(1):19-21
© 1981 The American Genetic Association 72:19-21

research-article

Population genetics of Drosophila nasuta nasuta, Drosophila nasuta albomicana and their hybrids

VI. Pattern of meiotic F1 chromosome segregation

H. A. Ranganath, lecturer, and N. B. Krishnamurthy, professor

Department of Post Graduate Studies and Research in Zoology Manasagangotri
University of Mysore Mysore 570 006, India

Abstract

Interracial hybridization experiments between D. n. nasuta and D. n. albomicana were made. During gametogenesis there was selective elimination of abnormal gametes in F1 females; hence, only normal gametes were produced. F1 males yielded both normal and abnormal gametes. Fertility tests on F2 and backcross progeny showed males are more often sterile than females. The implications of these findings are discussed.


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