Project description:We used whole-genome fire ant microarrays to examine the molecular basis for division of labor in fire ant workers by comparing foraging and non-foraging workers from monogyne colonies. Fire ant colonies were collected in the field and transported into the lab were they were reared in standard conditions. We created a nesting chamber containing the queen, the brood and workers performing nursing tasks and a foraging area, separated from the nesting chamber and provided with food and water sources. Foraging workers were collected in the foraging area while non-foraging workers were collected in the nesting chamber. Total RNA was isolated from pools of whole workers and processed for microarrays.

2014-01-08 | E-MTAB-2094 | biostudies-arrayexpress

Direct and indirect effects of a social supergene

Project description:To investigate the effect of supergene status and social environment pre- and post-pupation, we used RNA-sequencing of fire ant ant workers to assess gene expression differences.

2022-12-21 | GSE205680 | GEO

Expression data from E11.5 mouse embryonic forelimbs - various mutant conditions or dissected limb domains

Project description:Sonic hedgehog (Shh) signals via Gli transcription factors to direct digit number and identity in the vertebrate limb. We have characterized the Gli-dependent cis-regulatory network through a combination of whole genome ChIP-on-chip and transcriptional profiling of the developing mouse limb. In this dataset, we include the expression data obtained from dissected mouse forelimbs using a variety of gain- and loss-of-function hedgehog pathway mutants, as well as limbs dissected into responsive (posterior 2/3ds) and non-responsive (anterior 1/3d) Hh tissues. These data are used to obtain 753 genes that are differentially expressed in response to Shh signaling. Keywords: Comparison of genetic samples 28 Total samples were analyzed. We generated the following pairwise comparisons using PowerExpress: Shh<WT; SmoM2>WT; Gli3<WT; Gli3>WT; Ant<Post; Ant>Post. Genes with an FDRM-bM-^IM-$10% and a fold-change M-bM-^IM-%2 were selected. We did not generate pairwise comparisons for a certain combinations with SmoGli3 and Gli3 mutants because data from these arrays contained significant variability. To identify additional genes that were Shh-responsive, we performed the following multiple sample comparisons using an FDRM-bM-^IM-$10% and a posterior probability cutoff of M-bM-^IM-$25%: 1.) Ant<Post and Shh<WT<SmoM2, 2.) Ant<Post and Shh<WT<SmoM2 and Gli3>SmoGli3, 3.) Ant<Post and Shh<WT<SmoM2 and WT>SmoGli3

2008-09-14 | E-GEOD-11063 | biostudies-arrayexpress

A chromatin link to caste identity in the carpenter ant Camponotus floridanus

Project description:The goal of this study was to assay the extent of variation in chromatin organization between 3 ant castes (major and minor female workers and males) in one colony of Camponotus floridanus carpenter ant using ChIPseq. 45 samples total: 30 ChIP samples and 3 inputs for total histone H3, 7 histone H3 PTMs and RNA Pol II in major, minor, and male ants; CBP in major and minor ants; the major H3K27ac sample was replicated. 4 ChIP samples for H3 and H3K27ac in brains of majors and minors, and 2 inputs. 2 RNAseq samples for major and minor ants head+thorax; 4 RNAseq samples for brain (majors and minors with 2 replicates each).

2012-11-26 | E-GEOD-37523 | biostudies-arrayexpress

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