Sort   by:  
 Page size 
GenomicspiRNA production requires heterochromatin formation in Drosophila
Here, we analyzed H3K9me3 derived from wild type ovarian tissue. Here we show that deposition of histone 3 lysine 9 by the methyltransferase dSETDB1 (egg) is required for piRNA cluster transcription. In the absence of dSETDB1, cluster precursor transcription collapses in germline and somatic gonadal...
ORGANISM(S): Drosophila melanogaster 
2011-09-08 | E-GEOD-30157 | biostudies-arrayexpress
TranscriptomicsVreteno, a gonad-specific protein, is essential for germline development and primary piRNA biogenesis in Drosophila.
Here, we analyzed small RNA libraries derived from ovarian tissues heterozygous or mutant for the Tudor gene, Vreteno. In the absence of vret, Piwi-bound piRNAs are lost without changes in piRNA precursor transcript production, supporting a role for Vret in primary piRNA biogenesis. In the germline,...
ORGANISM(S): Drosophila melanogaster 
2011-08-15 | E-GEOD-30088 | biostudies-arrayexpress
TranscriptomicspiRNA production requires heterochromatin formation in Drosophila
Here, we analyzed two small RNA libraries derived from ovarian tissue mutant for either the Drosophila SETDB1 gene, or the Bam gene. Here we show that deposition of histone 3 lysine 9 by the methyltransferase dSETDB1 (egg) is required for piRNA cluster transcription. In the absence of dSETDB1, clust...
ORGANISM(S): Drosophila melanogaster 
2011-08-15 | E-GEOD-30086 | biostudies-arrayexpress
TranscriptomicsVreteno, a gonad-specific protein, is essential for germline development and primary piRNA biogenesis in Drosophila
In Drosophila, Piwi proteins associate with Piwi-interacting RNAs (piRNAs) and protect the germline genome by silencing mobile genetic elements. This defense system acts in germline and gonadal somatic tissue to preserve germline development. Genetic control for these silencing pathways varies great...
ORGANISM(S): Drosophila melanogaster 
2011-09-28 | E-GEOD-30360 | biostudies-arrayexpress
TranscriptomicsCharacterization of pathogen specific expression of host immune response genes in Mycobacterium and Anaplasma spp. infection in ruminants
Anaplasma and Mycobacterium species are known to modify gene expression in ruminants. The objectives of this study were (a) to characterize global gene expression profiles in European red deer (Cervus elaphus) in response to Anaplasma ovis and A. ovis/Mycobacterium bovis/M. avium sub. paratuberculos...
ORGANISM(S): Cervus elaphus 
2010-12-31 | E-GEOD-21967 | biostudies-arrayexpress
UnknownA second update on mapping the human genetic architecture of COVID-19.
Not available
S-EPMC10482689 | biostudies-literature
Sort   by:  
 Page size