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Sperm Precedence of Irradiated Mediterranean Fruit Fly Males (Diptera: Tephritidae)

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Title:Sperm Precedence of Irradiated Mediterranean Fruit Fly Males (Diptera: Tephritidae)
Authors:Lee, Stephan G.
McCombs, Susan D.
Saul, Stephen H.
Keywords:Ceratitis capitata
sterile insect technique
mating frequency
show 10 moremales
sperm competition
female fertility
egg fertility
fruit flies
insect pests
show less
Date Issued:Nov 2003
Publisher:Hawaiian Entomological Society
Citation:Lee SG, McCombs SD, Saul SH. 2003. Sperm precedence of irradiated Mediterranean fruit fly males (Diptera: Tephritidae). Proc Hawaiian Entomol Soc 36:47–59.
Abstract:Irradiated and non-irradiated Mediterranean fruit fly Ceratitis capitata (Wiedemann), males of two genotypes exhibited second male sperm precedence over the major portion of the female’s reproductive lifespan. The majority of females from polygamous copulations produced >50% of offspring from the second male. This figure is a mean number and there was great individual variation among females with values for ranging from 0.23 to 0.95. Females mated sequentially to irradiated and non-irradiated males had decreased fertility when the second male was irradiated. Females mated to irradiated males recovered fertility when remated to a non-irradiated male. These findings are of significance to sterile insect release (SIT) programs for control of the Mediterranean fruit fly where released flies will mate with wild flies and with concurrently released sterile flies. It indicates that fertility can be recovered even after a wild female mates with a released sterile male if she subsequently mates with a fertile wild male.
Appears in Collections: Volume 36 - November 2003 : Hawaiian Entomological Society

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