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32 results for “accessory glands”
Fig. 2 in Female remating inhibition and fitness of Bactrocera dorsalis (Diptera: Tephritidae) associated with male accessory glands
Fig. 2. Size of male mesodermal accessory gland (MAG) of Bactrocera dorsalis. A, mean length (± S.E.), and B, mean area (± S.E.) of glands. UP means unmated males that were paired with virgin females before the onset of the simulated dusk (when mating occurs), and UU means unmated males and that were not paired with females. 0 h is the size of the MAG just afer mating; 16 h is the size of the MAG at 16 h. Different letters above error bars indicate significantly different means.
Supplementary material 1 from: Thüler K, Blanckenhorn WU, Ward PI, Lüpold S, Bussière LF (2021) Female accessory gland fluid promotes sperm survival in yellow dung flies. Alpine Entomology 5: 95-100. https://doi.org/10.3897/alpento.5.68501
Table S1
Figure 1 from: Thüler K, Blanckenhorn WU, Ward PI, Lüpold S, Bussière LF (2021) Female accessory gland fluid promotes sperm survival in yellow dung flies. Alpine Entomology 5: 95-100. https://doi.org/10.3897/alpento.5.68501
Figure 1 Proportion of sperm from 30 random Scathophaga stercoraria males remaining alive after in vitro paired treatment with female accessory gland fluid vs. buffer control (red dot = overall mean). Proportions were based on absolute counts of live and dead sperm, which could be distinguished by stain colour, across 20 equal-sized images per male.
Data from: Early reproductive success in Drosophila males is dependent on maturity of the accessory gland
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Data from: Gene expression changes in male accessory glands during ageing are accompanied by reproductive decline in Drosophila melanogaster
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Data from: Hidden female physiological resistance to male accessory gland substances in a simultaneous hermaphrodite
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Sexual selection on the dynamics of accessory gland gene expression in maturing Drosophila males
GEO Series GSE111045. Drosophila melanogaster. 12 samples. Type: Expression profiling by high throughput sequencing.
Data from: On the effect specificity of accessory gland products transferred by the love-dart of land snails
Background: Sexual selection favours the evolution of male bioactive substances transferred during mating to enhance male reproductive success by affecting female physiology. These effects are mainly well documented for separate-sexed species. In simultaneous hermaphrodites, one of the most peculiar examples of transfer of such substances is via stabbing a so-called love-dart in land snails. This calcareous stylet delivers mucous products produced by accessory glands into the mate's haemolymph. In Cornu aspersum, this mucus temporarily causes two changes in the recipient. First, the spermatophore uptake into the spermatophore-receiving organ, called diverticulum, is probably favoured by contractions of this organ. Second, the amount of stored sperm increases by contractions of the copulatory canal, which close off the tract leading to the sperm digesting organ. However, it has yet to be determined whether these effects are similar across species, which would imply a common strategy of the dart in increasing male reproductive success. Results: We performed a cross-reactivity test to compare the in vitro response of the diverticulum and copulatory canal of C. aspersum (Helicidae) to its own and other species' mucus (seven helicids and one bradybaenid). We found that the contractions in the diverticulum were only induced by dart mucus of certain species, while the copulatory canal responded equally to all but one species' mucus tested. In addition, we report a newly-discovered effect causing the shortening of the diverticulum, which is also only caused by dart mucus of certain species. The advantage seems to be a distance reduction to the sperm storage organ. Conclusions: All these findings are the first to shed light on the evolution of the different functions of accessory gland products in dart-bearing species. These functions may be achieved via common physiological changes caused by the substances contained in the dart mucus, since the responses evoked were similar across species' mucus. Moreover, while these substances can act similarly in separate-sexed species as in simultaneous hermaphrodites, differences may occur in their evolution between the two sexual systems.
Data from: On the effect specificity of accessory gland products transferred by the love-dart of land snails
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Oncogenic signaling in the adult Drosophila prostate-like accessory gland leads to activation of a conserved pro-tumorigenic program, in the absence of proliferation
GEO Series GSE270145. Drosophila melanogaster. 12 samples. Type: Expression profiling by high throughput sequencing.
Regulation of Anopheles gambiae male accessory gland genes influences post-mating response in female
GEO Series GSE27233. Anopheles gambiae. 6 samples. Type: Expression profiling by array.
Regulation of male fertility and accessory gland gene expression by the Drosophila DHR39 nuclear receptor
GEO Series GSE159502. Drosophila melanogaster. 8 samples. Type: Expression profiling by high throughput sequencing.
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