DNA DISTRIBUTION IN SPERMATID NUCLEI OF NORMAL AND SEGREGATION DISTORTER MALES OF DROSOPHILA MELANOGASTER | Zendy

E. HauschteckJungen | Zendy; Daniel L. Hartl | Zendy

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DNA DISTRIBUTION IN SPERMATID NUCLEI OF NORMAL AND SEGREGATION DISTORTER MALES OF DROSOPHILA MELANOGASTER

Author(s) -

E. HauschteckJungen,

Daniel L. Hartl

Publication year - 1978

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/89.1.15

Subject(s) - spermatid , biology , drosophila melanogaster , genetics , spermiogenesis , chromatid , wild type , chromosome , mutant , gene , sperm

Using the DNA-specific dye BAO [2,5-bis-(4′-aminophenyl-(1′)]-1,3,4-oxadiazol), we have examined spermiogenesis in wild-type males of Drosophila melanogaster and in males carrying various combinations of the Sd and Rsp mutations involved in segregation distortion. Wild-type strains, even those newly collected from nature, are heterogeneous with respect to the incidence of spermiogenic abnormalities, principally in having a variable number of spermatid nuclei per cyst that fail to undergo complete elongation. Among segregation distorter males, Rsp/Rsp homozygotes have the greatest incidence of nuclear nonelongation or incomplete elongation, Rsp/Rsp + heterozygotes are intermediate, while Rsp +/Rsp + homozygotes have the least amount of abnormality. Indeed, Sd Rsp +/Sd + Rsp + males have significantly fewer spermiogenic aberrations than do wild-type strains.

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