Autor: |
Morgan, Philip B., Labrecque, C. C., Smith, Carroll N., Meifert, D. W., Murvosh, C. M. |
Zdroj: |
Journal of Economic Entomology; August 1967, Vol. 60 Issue: 4 p1064-1064, 1p |
Abstrakt: |
In a colony of house flies, Musca domestica L., maintained on a diet containing 0.01 % of apholate for 65 generations, sterility increased from an average of about 6% for the F1-F5. generations to 69% for the F26-F30generations and then decreased to 14-22% for the 51st-65th generations. Tests at a range of dosages indicated that after 58-59 generations the colony had failed to develop any resistance to apholate. Evidence of the transmission of genetic damage from parent to offspring was found in chromosomal preparations of flies released from apholate pressure. These showed such abnormalities as chromosomal stickiness, fragmentation, and the absence of an autosomal homologue. A colony maintained on a diet containing 0.05% of apholate showed a rapid increase in sterility and died out completely in the F7 generation: a colony maintained on 0.2% of the metepa died out in the F10 generation. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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