Genetic variation of male reproductive success in a laboratory population of Anopheles gambiae

Voordouw, Maarten J.; Koella, Jacob C.

doi:10.1186/1475-2875-6-99

Cited by 13 publications

(16 citation statements)

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“…This study emphasizes the importance of partitioning male reproductive success into its constituent components such as insemination success, oviposition success, and the number of eggs per batch [e.g. [ 45 ]]. Female oviposition is generally conditional on the female having been inseminated.…”

Section: Discussionmentioning

confidence: 99%

“…These two observations suggest that the quality or quantity of the male ejaculate influenced female oviposition. Using the G3 strain of A. gambia , it was previously shown that males vary genetically in their ability to induce females to oviposit [ 45 ]. The present study suggests a mechanistic link between sperm motility and oviposition.…”

Section: Discussionmentioning

confidence: 99%

“…A range of laboratory mating conditions was recently determined for A. gambiae (minimal swarm size of 10 males, 24 hour mating period, 2:1 sex ratio) that enabled the detection of genetic differences in male reproductive success among families of full-sib males [ 45 ]. The success of this study motivated the experimental design in the present study.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of male reproductive success in malaria-refractory and susceptible strains of Anopheles gambiae

Voordouw

Koella

Hurd

2008

Malar J

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Background: In female mosquitoes that transmit malaria, the benefits of being refractory to the Plasmodium parasite are balanced by the immunity costs in the absence of infection. Male mosquitoes, however, gain no advantage from being refractory to blood-transmitted parasites, so that any costs associated with an enhanced immune system in the males limit the evolution of female refractoriness and has practical implications for the release of transgenic males.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of male reproductive success in malaria-refractory and susceptible strains of Anopheles gambiae

Voordouw

Koella

Hurd

2008

Malar J

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“…Indeed, lek‐based mating system is often characterized by a high skew in male mating success (Mackenzie et al 1995). Possible factors accounting for this mating bias are male body size (Yuval et al 1993, Voordouw and Koella 2007, Huho et al 2007), age (Chambers and Klowden 2001, Huho et al 2006, 2007), genetics (Voordouw and Koella 2007), sperm length (Voordouw and Koella 2007) and energetic reserves (Yuval et al 1994, Huho et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Variation in energy reserves and role of body size in the mating system ofAnopheles gambiae

Maïga

Dabiré

Lehmann

et al. 2012

Journal of Vector Ecology

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: Anopheles gambiae mates in flight. Males gather at stationary places at sunset and compete for incoming females. Factors that account for male mating success are not known but are critical for the future of any genetic control strategy. The current study explored variations in nutritional reserves (sugars, glycogen, lipids, and proteins) in wild-caught swarming and resting males and evaluated the effect of body size and wing symmetry on male mating success. Our results showed that glycogen and sugar reserves are mobilized for flight. Males consume proportionally 5.9-fold as much energy derived from sugars in swarming activities than when they are at rest. Mated males were on average bigger than unmated ones (P<0.0001). A strong correlation between the left and right wings in both mated and unmated males was found and additional analysis on fluctuating asymmetry did not show any indication of mated males being more symmetrical than unmated ones. The distribution of wing size of mated males was focused around a central value, suggesting that intermediate size of males is advantageous in the An. gambiae mating system. The results are discussed in the context of sexual selection. Journal of Vector Ecology 37 (2): 289-297. 2012.

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“…Many examples of body size and higher fitness have been reported in mosquitoes in relation to malemating success (Ponlawat andHarrington 2009), survival (Maciel-De-Freitas et al 2007) or even towards egg production and female feeding behavior (Takken et al 1998;Voordouw and Koella 2007;Xue et al 1995b). Hence, the larger body size of the four transgenic mosquito strains studied here could imply in a fitness advantage in the field, with an increased possibility of local dissemination among the local population.…”

Section: Materials Results and Discussionmentioning

confidence: 95%

Fitness aspects of transgenic Aedes fluviatilis mosquitoes expressing a Plasmodium-blocking molecule

et al. 2010

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Vector-born diseases cause millions of deaths every year globally. Alternatives for the control of diseases such as malaria and dengue fever are urgently needed and the use of transgenic mosquitoes that block parasite/virus is a sound strategy to be used within control programs. However, prior to use transgenic mosquitoes as control tools, it is important to study their fitness since different biological aspects might influence their ability to disseminate and compete with wild populations. We previously reported the construction of four transgenic Aedes fluviatilis mosquito lines expressing a Plasmodium- blocking molecule (mutated bee venom phospholipase A(2)-mPLA(2)). Presently we studied two aspects of their fitness: body size, that has been used as a fitness-related status, and the expression of major enzymes classes involved in the metabolism of xenobiotics, including insecticides. Body size analysis (recorded by geometric wing morphometrics) indicated that both male and female mosquitoes were larger than the non-transgenic counterparts, suggesting that this characteristic might have an impact on their overall fitness. By contrast, no significant difference in the activity of enzymes related to metabolic insecticide resistance was detected in transgenic mosquitoes. The implication on fitness advantage of these features, towards the implementation of this strategy, is further discussed.

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Genetic variation of male reproductive success in a laboratory population of Anopheles gambiae

Abstract: Background: For Anopheline mosquitoes, the vectors of human malaria, genetic variation in male reproductive success can have important consequences for any control strategy based on the release of transgenic or sterile males.

Cited by 13 publications

References 50 publications

Comparison of male reproductive success in malaria-refractory and susceptible strains of Anopheles gambiae

Comparison of male reproductive success in malaria-refractory and susceptible strains of Anopheles gambiae

Variation in energy reserves and role of body size in the mating system ofAnopheles gambiae

Fitness aspects of transgenic Aedes fluviatilis mosquitoes expressing a Plasmodium-blocking molecule

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