Cyrtodiopsis whitei

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August undefined, 2024

Webmonomorphic eye stalks are plesiomorphic in Cyrtodiopsis. Observations of multiple copulations by females in paired-choice mating chambers indicated that female C whitei and C. dalmanm exhibit relative preferences for longer eye stalks such that preference intensity increases linearly with the difference in eye stalk length between males. WebCyrtodiopsis whitei: Male genitalia-ventral view of hypandrium and associated structures. Source publication Taxonomic status and additional description of White’s Stalked-eyed …

CiteSeerX — Cyrtodiopsis whitei (Diptera: Diopsidae)

WebCyrtodiopsis is a genus of stalk-eyed flies in the family Diopsidae. Species. Cyrtodiopsis africana Shillito, 1940 (Uganda, Congo) Cyrtodiopsis concava Yang & Chen, 1998 … Webstalk-eyed fly, Cyrtodiopsis dalmanni, and the trait is relative male eye span, i.e. the ratio of the distance between the tips of a male's eyes and his body length (Fig. 1). Sexual dimorphism in eye span is pronounced in this and the sympatric congener whitei,, C. because the slope of the regression of eye span on body length, simonmed central scheduling number

Sperm development, age and sex chromosome meiotic drive in …

WebApr 20, 2001 · To examine the pupal development of the brain, we used Bodian staining in the stalk‐eyed fly, Cyrtodiopsis whitei and compared it with development in the fruit fly, Drosophila melanogaster, which serves as a “typical” dipteran example without eye stalks. Early in pupal development, the neuropil organization of the two species is fairly ... WebChytridiomycosis is an infectious disease of amphibians caused by the fungus Batrachochytrium dendrobatidis (Bd).It an emerging disease that is significantly … 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. simonmed central scheduling

Portrait of an Asian stalk-eyed fly - DeepDyve

Cyrtodiopsis whitei

WebSperm development, age and sex chromosome meiotic drive in the stalk-eyed fly, Cyrtodiopsis whitei. The cytological basis of X chromosome meiotic drive or sex ratio … 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 …

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WebCyrtodiopsis whitei is a species of Stalk-Eye Fly from the family of Diopsidae. Overview Photos Videos Map Share Subscribe Play More Stalk-Eyed Fly Photographed in South … 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.

WebNov 29, 2013 · In Cyrtodiopsis whitei, two spermathecal ducts originate close together from a short pouch in the dorsal vagina wall (genital papilla) and bear apically single and double spermathecae, respectively. Kotrba ( 1993 ) reports that, during mating, the tip of a rod-shaped process of the male aedeagus enters, and possibly serves to pry open, the ... 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 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 subjected to ... 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 …

WebTwo species, Cyrtodiopsis whitei and C dahnanni, exhibit extreme sexual dimorphism in eye span, with eye stalks exceeding body length in large males. In contrast, C qiunqutguttata of both sexes possess short eye stalks. ... In addition, female C whitei and C. dalmanm exhibited shorter copulations, mated more frequently, and rejected fewer ...

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 … simonmed chandlerWebin 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 simonmed chandler dobsonWebThe Malayan stalk-eyed flyCyrtodiopsis whitei, of the family Diopsidae, exhibits sexual dimorphism in that the eyestalk span of the males exceeds the length of the body, … simonmed chandler 85248WebTaxonomic 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. simonmed clybournWebNov 1, 2011 · For example, in the stalk-eyed fly Cyrtodiopsis whitei, copulation duration exhibits a bimodal distribution with peaks at 10 and 50 s, and sperm are not. Acknowledgments. We thank Dr Zenobia Lewis for invaluable comments and English editing of the manuscript and Mr. Ushio Koizumi for useful advice on collecting and rearing of … simonmed chandler az 85224WebRecent molecular studies have shown that the genera Teleopsis and Cyrtodiopsis are in fact paraphyl-etic with respect to each other, form a monophyletic group and should be considered as a single genus (Baker ... Diopsis whitei Curran 1936: 1. Diagnosis: IVB length up to 4.5 times as long as width of eye stalk in the middle. Thorax pollinose on ... simonmed clermont npiWebAbstract. 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 … simon med chandler frye rd