Cyrtodiopsis whitei

Author: noll

August undefined, 2024

Web1. 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 … 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.

Taxon: Cyrtodiopsis whitei

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 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 … riverway irvine

Male eye span in stalk-eyed flies indicates genetic quality …

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. 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 ... 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. smoother skin for men

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

Portrait of an Asian stalk-eyed fly SpringerLink

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 ... WebJul 1, 2001 · Cyrtodiopsis whitei males are not fertile until at least three weeks after eclosion and can survive for six months or more in the laboratory and field ( Wilkinson & Dodson, 1997 ). Consequently,... riverway industrial estateWebAbstract. 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 … smoother scrolling windows 11

"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, " - Cyrtodiopsis whitei

Cyrtodiopsis whitei

Taxonomy browser (Teleopsis whitei) - National Center for …

Webcyrtodiopsis whitei short copulation copulation duration direct result non-irradiated male artificial inter-ruptions indicated sperm solitary male temporary mating plug field short … 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 …

Did you know?

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. WebSystematics and ecology of Cyrtodiopsis whitei (Curran, 1936), initially described in brief from a tropical dry deciduous forest in eastern India as Diopsis whitei, remained obscure …

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

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. WebCyrtodiopsis whitei. NCBI BLAST name: flies Rank: species ... (Diptera) based on morphological and DNA sequence data" Insect Syst. Evol. 33: 325-336 (2002) …

WebJan 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 ...

WebNov 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 … smooth er single or double membraneWebApr 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. smoothers haloWebCyrtodiopsis whitei: Male genitalia-ventral view of hypandrium and associated structures. Source publication Taxonomic status and additional description of White’s Stalked-eyed … smoothers meaningWebGenetic 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 … river way in harlowWebCyrtodiopsis 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. … riverway jobs houstonWebIn 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. riverway isle of wightWebCyrtodiopsis 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 … riverway laundry