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GenomicsBinding of the C. elegans dosage compensation complex protein DPY-27
Dosage Compensation is required to correct for uneven gene dose between the sexes. We utilized global run-on sequencing (GRO-seq) to examine how Caenorhabditis elegans dosage compensation reduces transcription of X-linked genes. To facilitate these experiments, we required accurate 5M-bM-^@M-^Y-ends...
ORGANISM(S): Caenorhabditis elegans 
2013-06-18 | E-GEOD-43086 | biostudies-arrayexpress
TranscriptomicsRapid de novo evolution of X chromosome dosage compensation in Silene latifolia, a plant with young sex chromosomes
Silene latifolia is a dioecious plant with heteromorphic sex chromosomes that have originated only ~10 MYA and is a promising model organism to study sex chromosome evolution in plants. Previous work suggests that S. latifolia XY chromosomes have gradually stopped recombining and the Y chromosome is...
ORGANISM(S): Silene latifolia 
2012-08-24 | E-GEOD-35563 | biostudies-arrayexpress
TranscriptomicsX chromosome dosage compensation via enhanced transcriptional elongation in Drosophila males (Control & MSL2 RNAi)
MSL (Male-specific lethal) complex increases transcription on the single X chromosome of Drosophila males in order to equalize expression of X-linked genes between males (XY) and females (XX). The increase in transcript levels correlates with MSL- dependent acetylation of histone H4 at K16 within th...
ORGANISM(S): Drosophila melanogaster 
2011-03-03 | E-GEOD-25887 | biostudies-arrayexpress
TranscriptomicsComplete dosage compensation and sex-biased gene expression in Manduca sexta
Using 4 replicate males and 4 replicate females this experiment examined dosage compensation and sex-biased gene expression. Briefly we performed a de novo assembly of the Manduca sexta transcriptome using all sequenced libraries, quantified genes expression, identified the physical locations of gen...
ORGANISM(S): Manduca sexta 
2014-03-18 | E-MTAB-2066 | biostudies-arrayexpress
TranscriptomicsChromatin immunoprecipitation of the MSL-1 and MSL-3 vs a mock IP in Drosophila and transcription profiling of X linked genes in WT male or female III instar larvae to provide X chromosome wide profiling of MSL-1 distribution and dosage compensation in Drosophila
Dosage compensation ensures that males and females, despite unequal number of X chromosomes, equalize for X linked gene expression. In Drosophila, it is achieved by a two-fold up-regulation of most of the genes present on the male X chromosome, and requires the association of the Dosage Compensation...
ORGANISM(S): Drosophila melanogaster 
2006-04-01 | E-MEXP-554 | biostudies-arrayexpress
TranscriptomicsThe activation potential of MOF is constrained for dosage compensation
The H4K16 acetyltransferase MOF plays a crucial role in dosage compensation in Drosophila, but has additional, global functions. We compared the molecular context and effect of MOF in male and female flies combining chromosome-wide mapping and transcriptome studies with analyses of defined reporter ...
ORGANISM(S): Drosophila melanogaster 
2010-06-26 | E-GEOD-20695 | biostudies-arrayexpress
GenomicsRNA stability controlled by m6A methylation contributes to X-to-autosome dosage compensation in mammals
In mammals, X-chromosomal genes are expressed from a single copy since males (XY) possess a single X chromosome, while females (XX) undergo X inactivation. To compensate for this reduction in dosage compared to two active copies of autosomes, it has been proposed that genes from the active X chromos...
EGAS00001007112 | EGA
TranscriptomicsTranscription profiling of mouse embryonic stem cells during differentiation to investigate dosage compensation by assaying expression of X-linked genes
Dosage compensation in mammals involves silencing of one X chromosome in XX females, and requires expression, in cis, of Xist silencing RNA. Using microarray analysis to assay expression of X-linked genes in mouse embryonic stem cells, we show that dosage compensation also involves global up-regulat...
ORGANISM(S): Mus musculus 
2007-10-01 | E-MEXP-1150 | biostudies-arrayexpress
TranscriptomicsDevelopment of GRO-cap (GRO-seq followed by 5'-cap enrichment) to map transcription start sites in C. elegans
Dosage Compensation is required to correct for uneven gene dose between the sexes. We utilized global run-on sequencing (GRO-seq) to examine how Caenorhabditis elegans dosage compensation reduces transcription of X-linked genes. To facilitate these experiments, we required accurate 5M-bM-^@M-^Y-ends...
ORGANISM(S): Caenorhabditis elegans 
2013-06-18 | E-GEOD-43085 | biostudies-arrayexpress
TranscriptomicsTranscription profiling of human gender specific Stratagene RNA to examine dosage compensation of the active X in mammals
Here, we show that doubling of the global expression level of the X chromosome achieves dosage compensation in somatic tissues from several mammalian species. X-linked genes are highly expressed in brain tissues, consistent with a role in cognitive functions. Experiment Overall Design: Eight arrays ...
ORGANISM(S): Homo sapiens 
2008-06-12 | E-GEOD-3413 | biostudies-arrayexpress
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