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Cyrtodiopsis whitei

WebChytridiomycosis is an infectious disease of amphibians caused by the fungus Batrachochytrium dendrobatidis (Bd).It an emerging disease that is significantly … Webin sperm precedence are not well understood. In the stalk-eyed fly,Cyrtodiopsis whitei (Diptera, Diopsidae), sperm precedence is influenced by the presence of sex chromosome meiotic drive. When drive-carrying males compete with non-driving males for fertilizations within a female, the number of progeny sired by drive males is significantly fewer

Eye stalks or no eye stalks: A structural comparison of pupal ...

WebSep 1, 1983 · Cyrtodiopsis whitei Curran lives in the tropical rainforest of Malaysia. We describe a number of aspects of its morphology and biology, some functional properties of the eye, and the ritualized fights between males, by which harems are acquired. The evolutionary significance of the eyestalks is discussed: they represent structures … WebMay 14, 2001 · In contrast to D. melanogaster, C. whitei shows a small, neck-like constriction between the optic lobes and the rest of the brain. By 20% of pupal development, the divergence is more apparent, and by 30%, the future eye stalk and optic nerve of C. whitei has started to form. creative depot blog https://thenewbargainboutique.com

Eye stalks or no eye stalks: a structural comparison of pupal

WebBy means of field observations and laboratory experiments on the Malaysian stalk-eyed fly Cyrtodiopsis whitei we examined the consequences of variation in cop-ulation duration for sperm competition. In this sexually dimorphic species over 90 % of all copulations occur in nocturnal aggregations with from one to four males and up to 24 females. WebIn the stalk-eyed fly, Cyrtodiopsis whitei (Diptera, Diopsidae), sperm precedence is influenced by the presence of sex chromosome meiotic drive. When drive-carrying males compete with non-driving males for fertilizations within a female, the number of progeny sired by drive males is significantly fewer than predicted by sperm mixing alone. WebChytridiomycosis is a disease caused by two pathogenic chytrid fungi, Batrachochytrium dendrobatidis (Bd) and B. salamandrivorans (Bsal). It infects the skin of numerous … creative depot stempel weihnachten

Sperm transfer by spermatophore in Diptera: new results from …

Category:Sperm transfer by spermatophore in Diptera: new results from …

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Cyrtodiopsis whitei

Sperm survival in female stalk-eyed flies depends on seminal

WebCryptotis. The genus Cryptotis is a group of relatively small shrews with short ears, which are usually not visible, and short tails, commonly called small-eared shrews. They have …

Cyrtodiopsis whitei

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Webeyed fly, Cyrtodiopsis whitei, influences progeny sex proportion, in order to determine if a common developmental mechanism could cause meiotic drive in these distantly related taxa. Because age has been found to a•ect the degree of segregation distortion in some Drosophila, we tested flies from six to 26 weeks of age. WebJun 28, 2008 · Spermatophores occur in four out of five investigated genera, in Cyrtodiopsis, Diasemopsis, Teleopsis, and in Sphyracephala, which is positioned close to the base of the family. Within the genus Diopsis the spermatophore is subject to reduction. Spermatophore size and copulation duration are positively correlated across the species.

WebHere we describe how sperm development in the stalk-eyed fly, Cyrtodiopsis whitei, influences progeny sex proportion, in order to determine if a common developmental mechanism could cause meiotic drive in these distantly related taxa. Because age has been found to affect the degree of segregation distortion in some Drosophila, we tested flies … WebCyrtodiopsis whitei (Diopsidae) from Malaysia is one of the stalk-eyed flies which show a marked sexual dimorphism ofeye spans. The particularly long eye stalks of male flies are to be regarded as an epigamic feature. Field observations show the males' eye spans to be correlated with the possession of a harem and with that harem's size. The question …

WebApr 14, 2009 · Summary Artificial sexual selection alters allometry in the stalk-eyed fly Cyrtodiopsis dalmanni (Diptera: Diopsidae) Published online by Cambridge University Press: 14 April 2009 Gerald S. Wilkinson Article Metrics Save PDF Share Cite Rights & Permissions Summary HTML view is not available for this content. WebIn the stalk-eyed fly, Cyrtodiopsis whitei (Diptera, Diopsidae), sperm precedence is influenced by the presence of sex chromosome meiotic drive. When drive-carrying males compete with non-driving males for fertilizations within a female, the number of progeny sired by drive males is significantly fewer than predicted by sperm mixing alone.

WebCyrtodiopsis is a genus of stalk-eyed flies in the family Diopsidae. Species. Cyrtodiopsis africana Shillito, 1940 (Uganda, Congo) Cyrtodiopsis concava Yang & Chen, 1998 …

WebAbstract. In the stalk-eyed fly Cyrtodiopsis whitei (Diopsidae; Diptera), the relatively long optic nerve develops within the tight lumen of a very short eyestalk. Axonal growth is … creative dance and music harveyWebexperiments on the Malaysian stalk-eyed fly Cyrtodiopsis whitei we examined the consequences of variation in cop- ulation duration for sperm competition. In this sexually dimorphic species over 90% of all copulations occur in nocturnal aggregations with from one to four males and up to 24 females. creative design agency manchesterWebTaxonomic status and additional description of White’s Stalked-eyed Fly Cyrtodiopsis whitei(Curran, 1936) (Diptera: Diopsidae) from India with a key to the allied species and note on its habitat. Journal of Threatened Taxa10(8): 12035–12043; http://doi.org/10.11609/jott.3272.10.8.12035-12043 Copyright:© Agarwala 2024. creative dance belchertown