SEX CHROMOSOME MEIOTIC DRIVE SYSTEMS IN DROSOPHILA MELANOGASTER I. ABNORMAL SPERMATID DEVELOPMENT IN MALES WITH A HETEROCHROMATIN-DEFICIENT X CHROMOSOME (sc 4 sc 8) | Zendy

W. James Peacock | Zendy; George L. Gabor Miklos | Zendy; D. J. Goodchild | Zendy

Open Access

SEX CHROMOSOME MEIOTIC DRIVE SYSTEMS IN DROSOPHILA MELANOGASTER I. ABNORMAL SPERMATID DEVELOPMENT IN MALES WITH A HETEROCHROMATIN-DEFICIENT X CHROMOSOME (sc 4 sc 8)

Author(s) -

W. James Peacock,

George L. Gabor Miklos,

D. J. Goodchild

Publication year - 1975

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/79.4.613

Subject(s) - heterochromatin , biology , spermatid , genetics , meiosis , x chromosome , chromosome , drosophila melanogaster , heterochromatin protein 1 , gene , sperm

The meiotic drive characteristics of the In(1)sc4Lsc8R/Y system have been examined by genetic analysis and by light and electron microscopy. sc4sc8/Y males show a direct correlation between nondisjunction frequency and meiotic drive. Temperature-shift experiments reveal that the temperature-sensitive period for nondisjunction is at meiosis, whereas that for meiotic drive has both meiotic and post-meiotic components. Cytological analyses in the light and electron microscopes reveal failures in spermiogenesis in the testes of sc 4 sc 8 males. The extent of abnormal spermatid development increases as nondisjunction becomes more extreme.

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