Cyrtodiopsis whitei

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August undefined, 2024

WebMalay species Cyrtodiopsis whitei (Curran), and first observations on two of the Bruneian species, Teleopsis pallifacies (Feijen) and Teleopsis belalongensis, reveal a similar behaviour: the males display fighting activity on the sleeping sites. Figures 1 to 3 show the allometric data of ... 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

[PDF] Sperm development, age and sex chromosome meiotic drive …

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, WebCyrtodiopsis whitei: Eye stalk showing three segments of prominently towards the subapical band in the median antenna and a long bristle, arista, arising from the third segment. … dark discoloration inner thighs

Sperm development, age and sex chromosome meiotic drive in …

WebNov 1, 1997 · We report results of genetic analyses that demonstrate that extreme female-biased sex ratios in two sister species of stalk-eyed flies, Cyrtodiopsis dalmanni and C. … 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. WebTaxonomic 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. dark disney facts

Cyrtodiopsis whitei: Male genitalia-ventral view of …

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Webexperiments 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. 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 … dark disney secretsWebCyrtodiopsis 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 … dark disney theories

"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 ... " - Cyrtodiopsis whitei

Cyrtodiopsis whitei

Portrait of an Asian stalk-eyed fly - DeepDyve

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. WebThe 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, …

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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. 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 …

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. 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 ...

http://drosophila.biology.kent.edu/users/plorch/LorchPdfs/Lorchetal1993.pdf 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.

WebGenetic analyses of Cyrtodiopsis dalmanni, the sister species to C. whitei (Wilkinson et al., 1998a), have demonstrated that an X-linked factor causes males to produce …

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 ... dark disney princessWebcyrtodiopsis whitei short copulation copulation duration direct result non-irradiated male artificial inter-ruptions indicated sperm solitary male temporary mating plug field short … dark disney princess coloring pagesWebBy 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. darkdiver grandahl drangleic castle locationWeb1. The 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, whereas that of the females, which have shorter bodies on the average, is smaller than the body length. The ratio of the sexes in a population departs significantly from 1∶1; in samples of … dark disney x readerWebCyrtodiopsis whitei: Male genitalia-ventral view of hypandrium and associated structures. Source publication Taxonomic status and additional description of White’s Stalked-eyed … bisharp chessWebCyrtodiopsis whitei. NCBI BLAST name: flies Rank: species ... (Diptera) based on morphological and DNA sequence data" Insect Syst. Evol. 33: 325-336 (2002) [Cyrtodiopsis synonymized with Teleopsis] External Information Resources (NCBI LinkOut) LinkOut: Subject: LinkOut Provider: Cyrtodiopsis whitei Curran, 1936: … dark diversity extWebJan 15, 1998 · The frequency of biased sex ratio was 36% in C. whitei (n = 75 sires, 10,395 progeny; Fig. 1a) after about five generations in culture and 16% in C. dalmanni (n = 93 sires, 10,695 progeny; Fig. 1a ... bisharp costume