Males of the seed bug Togo hemipterus (Heteroptera: Lygaeidae) use accessory gland substances to inhibit remating by females

2008 ◽  
Vol 54 (12) ◽  
pp. 1538-1542 ◽  
Author(s):  
Chihiro Himuro ◽  
Kenji Fujisaki
Genetics ◽  
2000 ◽  
Vol 155 (1) ◽  
pp. 167-178 ◽  
Author(s):  
Rhonda R Snook ◽  
Sophia Y Cleland ◽  
Mariana F Wolfner ◽  
Timothy L Karr

AbstractInfection in Drosophila simulans with the endocellular symbiont Wolbachia pipientis results in egg lethality caused by failure to properly initiate diploid development (cytoplasmic incompatibility, CI). The relationship between Wolbachia infection and reproductive factors influencing male fitness has not been well examined. Here we compare infected and uninfected strains of D. simulans for (1) sperm production, (2) male fertility, and (3) the transfer and processing of two accessory gland proteins, Acp26Aa or Acp36De. Infected males produced significantly fewer sperm cysts than uninfected males over the first 10 days of adult life, and infected males, under varied mating conditions, had lower fertility compared to uninfected males. This fertility effect was due to neither differences between infected and uninfected males in the transfer and subsequent processing of accessory gland proteins by females nor to the presence of Wolbachia in mature sperm. We found that heat shock, which is known to decrease CI expression, increases sperm production to a greater extent in infected compared to uninfected males, suggesting a possible link between sperm production and heat shock. Given these results, the roles Wolbachia and heat shock play in mediating male gamete production may be important parameters for understanding the dynamics of infection in natural populations.


Nature ◽  
1977 ◽  
Vol 267 (5609) ◽  
pp. 342-344 ◽  
Author(s):  
GEORGE F. O'MEARA ◽  
DAVID G. EVANS

1976 ◽  
Vol 65 (4) ◽  
pp. 683-685 ◽  
Author(s):  
L. Bullini ◽  
M. Coluzzi ◽  
A. P. Bianchi Bullini

AbstractA new approach to the study of multiple insemination in mosquitoes or other organisms involving the use of electrophoretic enzyme variants is described. Data obtained on Culex pipiens L. with this technique confirm the basic monogamy of the species and suggest that multiple insemination may occur almost exclusively within 48 h after the first mating. Two independent mechanisms are probably acting in preventing multiple insemination. The first, probably the formation of a mucoid mating plug during the first copulation, allows the fertilisation of a further 10% of eggs by the second male in double inseminations; the second, the accessory gland pheromone (matrone), after an initial latent period, totally prevents a second insemination for the duration of the mosquito's life.


Andrology ◽  
2021 ◽  
Author(s):  
Sandro La Vignera ◽  
Andrea Crafa ◽  
Rosita A. Condorelli ◽  
Federica Barbagallo ◽  
Laura M. Mongioì ◽  
...  

Author(s):  
Sander van Iersel ◽  
Elferra M. Swart ◽  
Yumi Nakadera ◽  
Nico M. van Straalen ◽  
Joris M. Koene

2019 ◽  
Vol 29 (6) ◽  
pp. R196-R197 ◽  
Author(s):  
Garrett P. League ◽  
Lindsay L. Baxter ◽  
Mariana F. Wolfner ◽  
Laura C. Harrington

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