Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"doublesex"”.
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Characterization of doublesex and nanos genes in Acropora millepora
… in coral. Recently, a homolog of doublesex (AmDM1) was cloned for Acropora millepora. doublesex was identified as the somatic sex-determinant of Drosophila melanogaster and has been shown to be well conserved throughout the metazoan evolution. The gene product, Dsx, is a …
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Genetic Analysis of The Function of The Drosophila Doublesex-Related Factor Dmrt93B
DMRT (Doublesex and Mab-3 related transcription factor) proteins generally associated with sexual differentiation in many organisms share a common DNA binding domain and are often expressed in reproductive tissues. Aside from doublesex, which is a central factor in the regulation of sex …
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Investigating the neurobiological basis underlying the sex-specific production of courtship song in Drosophila: the roles of sex determination genes fruitless and doublesex
… sex determination hierarchy, fruitless (fru) and doublesex (dsx), which are responsible for sexual differentiation in both the CNS and soma, are required for wild-type song production. However, the critical differences underlying the sexually dimorphic production of courtship song are unknown; …
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UNCOVERING THE EVOLUTION AND DEVELOPMENT OF A NOVEL ABDOMINAL APPENDAGE IN BLACK SCAVENGER FLIES (SEPSIDAE: DIPTERA)
… biloba and Perochaeta dikowi. I find that doublesex and abdominal-A have been co-opted into the GRN underlying 4th sternite brush development in both species. In T. biloba, extradenticle and Distal-less are additionally co-opted while there was no evidence for the involvement of Distal-less …
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Neural Regions Affecting Female Aggression and Receptivity in Drosophila melanogaster
… of a subset of neurons expressing the doublesex gene was found to incite high amounts of aggression in females but not males. Furthermore, the aggression demonstrated by these females differed based on the stimulus presented by the partners, with locomotion being a major elicitor of …
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The Evolution of Sex Determination and the DMRT1 Gene in the Japanese Gecko (Gekko japonicus)
… (TSD). In this study, the presence of the Doublesex and mab-3-related Transcription Factor (<em>Dmrt1</em>) gene was observed during embryonic development in geckos with a TSD mechanism. To do this, I observed the rate of transcription of the <em>Dmrt1</em> gene in the Gecko species …
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Molecular and Neural Mechanisms Underlying Courtship Song Evolution in Drosophila
… the role of the sex determination gene doublesex (dsx) in TN1 neuronal development and find that dsx negatively regulates TN1 neuron number in D. yakuba but has no effect in D. melanogaster. Furthermore, blocking apoptosis in dsx neurons also results in a gain of TN1 neurons to the same …
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Identification and Characterization of Y Chromosome and M Locus Genes in Anopheles and Aedes Mosquitoes Using the Chromosome Quotient Method
… and the production of the female isoforms of doublesex and fruitless, two key regulators of downstream sexual differentiation. Ectopic expression of Nix resulted in masculinization of genetic females. Based on these results, we concluded that Nix is a male-determining factor in Aedes aegypti. …
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Evolution of a Novel Neuronal Sex-Specifically Spliced Gene in Mosquitoes
… Until now, <em>fruitless</em> and <em>doublesex</em> were the only described sex-specifically spliced genes, highlighting the rarity and importance of such regulation. In particular, the neuronal specificity and sex-specific protein domain features of <em>AAEL011211</em> in mosquitoes …