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Differential use of stored sperm during oviposition in the damselfly Calopteryx splendens xanthostoma (Charpentier) 总被引:2,自引:0,他引:2
Female Calopteryx splendens xanthostoma (Charpentier) (Odonata), have two discrete sperm storage organs, the bursa copulatrix and the paired spermathecae. We used
the Random Amplified Polymorphic DNA(RAPD) profiling technique to determine from which sperm storage organ spermatozoa were used to fertilise eggs during behaviourally
distinct oviposition bouts. During oviposition bouts following remating sperm from the bursa copulatrix are largely used to
fertilise eggs, but when females avoid remating before an oviposition bout the sperm used to fertilise eggs are derived mainly
from the paired spermathecae. Our observations suggest that female C. s. xanthostoma can avoid male paternity assurance mechanisms by a combination of behavioural and anatomical adaptation: the reason(s) they
do so is unclear.
Received: 28 November 1995/Accepted after revision: 5 August 1996 相似文献