RADIATION INDUCED VIABILITY MUTATIONS IN THE HONEY BEE
The frequency of recessive detrimental mutations expressed in the haploid drone honey bee was investigated and compared with recessive and dominant lethal mutations detected in the haploid drone and diploid worker. A single queen was inseminated by a drone homozygous for three genetic markers. Viability of progeny was determined, and hybrid daughters bearing the genetic markers were stored in colonies. The spermatheca of the queen was then irradiated with 2600 r kvp x rays. Morphological defects and viability were studied in progeny and grand-progeny. A total of 92 pairs was tested during one season. Results showed that 60.8% of the sperm cells receiving radiation contained at least one or more dominant lethals. Correcting for the saturation effect on the assumption of independence of each dominant lethal, an average proportion of 0.94 dominant lethals were found per cell. The average reduction in embryonic viability was 28%. Forty per cent of the queens tested contained one or more recessive lethals. Corrections in procedure and plans for future work, as well as work in progress, are described. (H.M.G.)
- Research Organization:
- New Hampshire. Univ., Durham
- DOE Contract Number:
- AT(30-1)-2315
- NSA Number:
- NSA-18-013447
- OSTI ID:
- 4088102
- Report Number(s):
- NYO-2315-1
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-64
- Country of Publication:
- United States
- Language:
- English
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