Bombus impatiens reproduction and immunity
Ontology highlight
ABSTRACT:
INSTRUMENT(S): timsTOF Pro
ORGANISM(S): Bombus Impatiens (ncbitaxon:132113)
SUBMITTER: 
Leonard Foster
PROVIDER: MSV000091414 | MassIVE | Mon Mar 06 07:57:00 GMT 2023
SECONDARY ACCESSION(S): PXD040623
REPOSITORIES: MassIVE
Similar Datasets
Project description:Honeybees are very important eusocial insects and are involved in the pollination of many plants. Queen bees and worker bees develop from the same fertilized eggs, and are thus genetically identical despite their substantial behavioural and physiological differences. The mechanism governing developmental differences between worker and queen bees has always attracted much interest. While there are several reports on mRNA expression related to caste differentiation, no systematic investigation of small RNAs has thus far been carried out. Results: Using deep sequencing we systematically profiled small RNA expression in 4th-6th day worker larvae and queen larvae (the critical stages at which the fates of workers and queens are determined), and found that 38 miRNAs were differentially expressed between worker and queen larvae. In addition, 639 mature miRNA candidates were identified in our work for the first time, of which, 526 were expressed only in workers (318) or queens (208). Conclusion: We present the first profile of honeybee small RNAs and explore the mechanism of caste differentiation between worker and queen bees. Caste-specific expression patterns and large discrepancies in small RNA profiles between worker and queen bees indicate that small RNAs may be related to the differential development of worker and queen bee larvae. Results presented here will make a valuable contribution to understanding the caste switch between worker and queen bees.
2014-07-28 | GSE52630 | GEO
Project description:Investigation of changes in global gene expression patterns as Ignicoccus hospitalis becomes increasingly populated by Nanoarchaeum equitans These microarray data are complemented by shot gun proteomics (see manuscript)
2014-04-24 | GSE57033 | GEO
Project description:Honeybees are very important eusocial insects and are involved in the pollination of many plants. Queen bees and worker bees develop from the same fertilized eggs, and are thus genetically identical despite their substantial behavioural and physiological differences. The mechanism governing developmental differences between worker and queen bees has always attracted much interest. While there are several reports on mRNA expression related to caste differentiation, no systematic investigation of small RNAs has thus far been carried out. Results: Using deep sequencing we systematically profiled small RNA expression in 4th-6th day worker larvae and queen larvae (the critical stages at which the fates of workers and queens are determined), and found that 38 miRNAs were differentially expressed between worker and queen larvae. In addition, 639 mature miRNA candidates were identified in our work for the first time, of which, 526 were expressed only in workers (318) or queens (208). Conclusion: We present the first profile of honeybee small RNAs and explore the mechanism of caste differentiation between worker and queen bees. Caste-specific expression patterns and large discrepancies in small RNA profiles between worker and queen bees indicate that small RNAs may be related to the differential development of worker and queen bee larvae. Results presented here will make a valuable contribution to understanding the caste switch between worker and queen bees. Three healthy 10-frame colonies of ‘Zhenongda No.1’- a high-yielding royal jelly breed of Apis mellifera ligustica , were maintained at the Huajiachi campus of Zhejiang University. In each colony, the queen laid eggs over a period of 24 hours in one empty frame which was subsequently moved to an egg-free super-chamber. After 66 hours (less than 18 hours after hatching), we transferred 150 larvae into queen cups to rear queens in each colony and put the queen cup frames into their corresponding colonies. 40-60 worker larvae and queen larvae were collected from each colony after 4 days (73~90 h after hatching), 5 days (97~114 h after hatching) and 6 days (121~138 h after hatching). The larval samples were collected into 50 ml tubes, immediately frozen in liquid nitrogen and stored at -80C until being used for RNA extraction. After total RNA was extracted and quantified , relative equal amounts of total RNAs from each of the three sampling days were pooled into respectively worker and queen samples, and the fraction of small RNAs less than 30nt long was retained and sequenced on the Illumina/Solexa high-throughput platform (HTP).
2014-07-28 | E-GEOD-52630 | biostudies-arrayexpress
Project description:This experiment was designed to identify gene expression differences in young bees raised in colonies with a queen, with queen mandibular pheromone (QMP), or without a queen. The source colony was split into three colonies, allocating roughly equal quantities of adult bees, brood, and pollen and nectar stores. One colony retained the original queen (QR), one was left queenless (QL), and the third was given a strip that contained 10 Qeq (QMP+), a dose shown to mimic a live queen (20). The three colonies were transferred to a different apiary > 2 mi away so they would not return to the site of their natal hive. Prior to the colony split, bees (N ~1500) were collected 0-36 h after eclosion, marked on the dorsal thorax with a paint dot (Testors Paint), and ~500 were placed in each of the three colonies. Two days later, the marked bees were collected (N = 100). Bees were collected into liquid nitrogen, and heads were stored as above.
2004-10-15 | E-MEXP-80 | biostudies-arrayexpress
Project description:Female honeybees are specified as workers or queens based on diet during early development. Workers are essentially sterile with a reduced number of ovarioles and no spermatheca. In the presence of the queen (queen mandibular pheromone) and her brood, worker ovaries are kept in an inactive quiescent state. If the queen is removed, or lost, worker bees are able to sense this change in their environment and their ovaries undergo complete remodeling producing unfertilized haploid eggs that will produce male (drone bees). In this study we analyze gene expression in queen, worker, and laying worker ovaries using RNA-seq and explore differences in the chromatin landscape (focusing on H3K27me3).
2019-09-17 | GSE120561 | GEO
Project description:Female honeybees are specified as workers or queens based on diet during early development. Workers are essentially sterile with a reduced number of ovarioles and no spermatheca. In the presence of the queen (queen mandibular pheromone) and her brood, worker ovaries are kept in an inactive quiescent state. If the queen is removed, or lost, worker bees are able to sense this change in their environment and their ovaries undergo complete remodelling producing unfertilised haploid eggs that will produce male (drone bees). In this study we analyse gene expression in queen, worker, and laying worker ovaries using RNA-seq and explore differences in the chromatin landscape (focussing on H3K27me3).
2019-09-17 | GSE120560 | GEO
Project description:Shot-gun WGS of Afzelia xylocarpa
| PRJEB51213 | ENA
Project description:We exposed honey bee queens to insect growth regulator pesticides (IGRs) by feeding workers contaminated food. Queens and workers were housed in queen monitoring cages developed by Fine et al. and queen quality metrics were measured over the course of two weeks. At the end of this period, the queens were euthanized and their ovaries analyzed by shot-gun proteomics.
2022-04-01 | MSV000089189 | MassIVE
Project description:This experiment was designed to monitor the gene expression changes of young bees raised with and without queen mandibular pheromone (QMP). This experiment was a timecourse, comparing QMP- to QMP+ bees over 4 days of exposure. Bees that had eclosed over 16 hours were collected from a brood frame and placed in cages, 35 bees/cage. 8 hours later, queen mandibular pheromone (QMP, 0.1 queen equivalents) treatment was initiated, and fresh QMP was placed in the cage every day. One hour after QMP treatment had been refreshed, QMP- and QMP+ cages were collected into liquid nitrogen. 8 cages of each were collected on each day of the timecourse (1 day of treatment = Day 1, as well as Day 2, Day 3, and Day4).
2004-05-01 | E-MEXP-79 | biostudies-arrayexpress
Project description:<p>With the global prevalence of <em>Varroa</em> mites, more and more beekeepers resort to confining the queen bee in a queen cage to control mite infestation or to breed superior and robust queen bees. However, the impact of such practices on the queen bee remains largely unknown. Therefore, we subjected the queen bees to a 21-d egg-laying restriction treatment (from the egg stage to the emergence of adult worker bees) and analyzed the queen bees' ovarian metabolites and gut microbiota after 21 d, aiming to assess the queen bee's quality and assist beekeepers in better hive management. Our findings revealed a significant reduction in the relative expression levels of Vg and Hex110 genes in the ovaries of egg-laying-restricted queen bees compared to unrestricted egg-laying queens. The diversity of gut microbiota in the queen bee exhibited a notable decrease, accompanied by corresponding changes in the core bacterial species of the microbial community. Following egg-laying restriction, the activity of the queen bee's ovaries decreased, while the metabolism of glycerophospholipids remained or stored more lipid molecules, awaiting environmental changes for the queen bee to resume egg-laying promptly. Furthermore, we observed that <em>Bombella</em> in the queen bee's gut may regulate the queen's ovarian metabolism through tryptophan metabolism. These findings provide novel insights into the interplay among queen egg-laying, gut microbiota, and ovarian metabolism.</p>
2023-09-11 | MTBLS7576 | MetaboLights