Radiosensitive Stages in the Spermatogenesis of Drosophila melanogaster

Journal Article · Sat Nov 25 04:00:00 EST 1961 · Nature (London)

DOI:https://doi.org/10.1038/192781a0· OSTI ID:4832273

STRANGIO, V. A.

7 A preliminary account is given of experiments designed to detect simultaneously complete loss of X or Y chromosomes, deletion in the Y chromosome, and non-disjunction between X and Y chromosomes. A new, doubly marked Y chromosome stock designated sc⁸YB^sis used. After x irradiation with 1,000 r, males with a wild-type X chromosome and the doubly marked Y are mated daily to three females homozygous for the X chromosome markers yellow, apricot, echinus. On the assumption that the determination of nondisjunction will occur only at or before anaphase in the first meiotic division, the results indicate that the seventh brood in particular represents treated pre-meiotic stages and confirm the high sensitivity of meiotic and immediately pre-meiotic stages to the mutagenic effect of x rays.

• Research Organization: Univ. of Melbourne
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-002911
• OSTI ID: 4832273
• Journal Information: Nature (London), Journal Name: Nature (London) Journal Issue: 4804 Vol. 192; ISSN 0028-0836
• Publisher: Nature Publishing Group
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
ANIMAL CELLS
CHROMOSOMES
GENETICS
GONADS
INSECTS
MEIOSIS
MITOSIS
MUTATIONS
RADIATION EFFECTS
RADIOSENSITIVITY
SEX
X RADIATION