Journal ArticleDOI
The Fine Structure of the Spermatheca in Anopheles aquasalis (Diptera: Culicidae)
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TLDR
Understanding the spermathecal organization and function will contribute to understand details of mosquito reproductive biology, and help answer questions related to the reproductive success of these major vectors of pathogens.Abstract:
The vectorial capacity of mosquitoes is related to the reproductive output, and dependent on the ability of male spermatozoa to survive within the inseminated female. Mosquito females mate once, and immediately after mating, the male spermatozoa are transferred to and maintained in the ectodermic spermatheca. Mosquito spermathecae in culicines, especially of the yellowfever mosquito Aedes (Stegomyia) aegypti (L.), have been characterized in detail. In contrast, not much is known about this organ in anophelines. Here, the morphology of the spermatheca in the saltwater-tolerant mosquito Anopheles aquasalis Curry was investigated for the first time using a combination of light, confocal, and scanning and transmission electron microscopy. The spermatheca in An. aquasalis share many features with the three spermathecae present in Ae. aegypti, including a round-shaped reservoir and spermathecal duct glandular cells. However, differences such as the volume and cell types, as well as their numbers and di...read more
Citations
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Journal ArticleDOI
The insect spermatheca: an overview.
TL;DR: This review examines several aspects of and gaps in the current understanding of spermatheca biology, including morphology, function, reservoir filling, development, and biochemistry.
Journal ArticleDOI
A mosquito sperm's journey from male ejaculate to egg: Mechanisms, molecules, and methods for exploration.
TL;DR: The current understanding of a mosquito sperm's journey to the egg is described, highlighting gaps in knowledge of mosquito reproductive biology and suggesting future areas of research that will illuminate how sperm successfully traverse the female reproductive tract.
Journal ArticleDOI
Dynamics of epizootic hemorrhagic disease virus infection within the vector, Culicoides sonorensis (Diptera: Ceratopogonidae)
TL;DR: The data presented herein suggest that EHDV-2 disseminates via the hemolymph to secondary infection sites throughout the midge and demonstrate a high potential for transmission at five days at 25°C after an infective blood-meal.
Journal ArticleDOI
Transcriptional profiling and physiological roles of Aedes aegypti spermathecal-related genes
Tales Vicari Pascini,Marcelo Ramalho-Ortigao,José M. C. Ribeiro,Marcelo Jacobs-Lorena,Gustavo Ferreira Martins +4 more
TL;DR: RNAi-induced knockdown of transcript AeSigP-66,427, coding for a Na+/Ca2+ protein exchanger, specifically interfered with egg production and reduced sperm motility, which brought new insights into the molecular basis of sperm storage and identify potential targets for Ae.
Journal ArticleDOI
Morphology of ovary and spermathecae of the parasitoid Eibesfeldtphora tonhascai Brown (Diptera: Phoridae).
Cliver Fernandes Farder-Gomes,Helen Cristina Pinto Santos,Marco Antonio de Oliveira,José Cola Zanuncio,José Eduardo Serrão +4 more
TL;DR: This is the first report of the ovary and spermatheca morphology of E. tonhascai and contributes to the comprehension of the reproductive biology of this parasitoid of leaf-cutting ants.
References
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Journal ArticleDOI
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TL;DR: Secretions of male accessory glands contain a variety of bioactive molecules that exert wide-ranging effects on female reproductive activity and they improve the male's chances of siring a significant proportion of the female's offspring.
Journal ArticleDOI
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TL;DR: Recent identification of insect SFPs is reviewed and the multiple roles these proteins play in the postmating processes of female insects are discussed.
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An Anopheles transgenic sexing strain for vector control
TL;DR: The transgenic mosquito lines described here combine most of the features desired and required for a safe application of transgenic methodologies to malaria-control programs.
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Malaria vectors in Brazil
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Sperm storage and antioxidative enzyme expression in the honey bee, Apis mellifera
TL;DR: The presence of catalase transcripts in both reproductive tissues and semen in bees suggests that this enzyme might play a key role in antioxidative protection, and antioxidative enzyme transcripts remained present, and apparently increased, in male tissues long after sperm had matured and seminal fluid was produced.
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