Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
120
datasets available to search
ShareScore release 0.9.0
Dataset results
120 results for “queen ant”
Data from: Has gene expression neofunctionalization in the fire ant antennae contributed to queen discrimination behavior?
<p>Queen discrimination behavior in the fire ant <i>Solenopsis invicta</i> maintains its two types of societies: colonies with one (monogyne) or many (polygyne) queens, yet the underlying genetic mechanism is poorly understood. This behavior is controlled by two supergene alleles, <i>SB</i> and <i>Sb,</i> with ~600 genes. Polygyne workers, having either the <i>SB/SB</i> or <i>SB/Sb </i>genotype, accept additional <i>SB/Sb</i> queens into their colonies but kill <i>SB/SB</i> queens. In contrast, monogyne workers, all <i>SB/SB</i>, reject all additional queens regardless of genotype. Because the <i>SB</i> and <i>Sb</i> alleles have suppressed recombination, determining which genes within the supergene mediate this differential worker behavior is difficult. We hypothesized that the alternate worker genotypes sense queens differently because of the evolution of differential expression of key genes in their main sensory organ, the antennae. To identify such genes, we sequenced RNA from four replicates of pooled antennae from three classes of workers: monogyne <i>SB/SB</i>, polygyne <i>SB/SB,</i> and polygyne <i>SB/Sb</i>. We identified 81 differentially expressed protein-coding genes with 13 encoding potential chemical metabolism or perception proteins. We focused on the two odorant perception genes: an odorant receptor<i> SiOR463</i> and an odorant binding protein <i>Si</i><i>OBP12</i>. We found that <i>SiOR463</i> has been lost in the <i>Sb</i>-genome. In contrast, <i>SiOBP12</i> has an <i>Sb</i>-specific duplication, <i>SiOBP12b'</i>, which is expressed in the <i>SB/Sb</i> worker antennae, while both paralogs are expressed in the body. Comparisons with another fire ant species revealed that <i>SiOBP12b'</i> antennal expression is specific to <i>S. invicta</i> and suggests that queen discrimination may have evolved, in part, through expression neofunctionalization.</p>
Fig. 1. Gnamtogenys pertusa Lattke, 2004 in First record of ant Stictoponera pertusa Lattke, 2004 (Hymenoptera: Formicidae, Ectatomminae) in Sumatra Island, with description of the hitherto unknown dealate queen
Fig. 1. Gnamtogenys pertusa Lattke, 2004: A, B – worker (individual code: SEMUT10iv22A); C, D – dealate queen (colony code: SU-2iii23A, individual code: SEMUT2iii23A); A, C – head in frontal view; B, D – profile in lateral view.
Figs 6–9 in Dealate queens of the ant genus Eurhopalothrix Brown et Kempf, 1961 (Hymenoptera: Formicidae: Myrmicinae) from Sumatra
Figs 6–9. Dealate gyne of Eurhopalothrix jennya (colony: RS6ii2021-SU6, individual: RS13ii2021A). 6 – head in full-face view; 7 – body in lateral view; 8 – eye; 9 – mesosoma,
Fig. 3 in Morphology of the ovary and spermatheca of the leafcutter ant Acromyrmex rugosus queens (Hymenoptera: Formicidae)
Fig. 3. Light micrographs of an Acromyrmex rugosus spermatheca: (A) General appearance of the spermatheca with regions of columnar (Ce) and flat (Fe) epithelia in the reservoir and spermathecal gland (Gl) containing cells with a well-developed nucleus (black arrow). Scale bar: 30 μm. (B) The reservoir epithelium and transition between columnar (Ce) and flat epithelia (Fe). Scale bar: 10 μm. (C) The spermathecal gland (Gl) containing cells with a well-developed nucleus (black arrow) and cytoplasm with granules. Scale bar: 10 μm. (D) The spermathecal pump with muscles (Mu) associated with the spermathecal duct (D). Scale bar: 10 μm. Lu, lumen; Mu, muscles.
Fig. 2 in Morphology of the ovary and spermatheca of the leafcutter ant Acromyrmex rugosus queens (Hymenoptera: Formicidae)
Fig. 2. Light micrographs of an Acromyrmex rugosus ovariole. (A) Terminal filament (Tf) and germarium (Ge). Scale bar: 30 μm. (B) The vitellarium region with the egg chamber (Oc) and nurse chamber (Nc) at various stages of development, covered by follicular cells (Fc). Scale bar: 30 μm. (C) A follicle at the early stage of development with a small egg chamber (Oc) enveloped by cuboidal follicular cells (Fc) and a well-developed nurse chamber (Nc). N, nurse cell nucleus. Scale bar: 20 μm. (D) Flat follicular cells (Fc) covering the nurse chamber (Nc). Scale bar: 20 μm. (E) A follicle with an oocyte (Oc) with multiple accessory nuclei (black arrowhead). A disruption in the follicular epithelium that allows communication between the egg and nurse chambers (black arrow). Scale bar: 20 μm. (F) Oocytes (Oc) in the late maturation stages with a large number of yolk granules in the cytoplasm (black arrow), enveloped by cuboidal follicular (Fc) cells. The nurse chamber (Nc) is smaller than the egg chamber (Oc). Scale bar: 30 μm. (G) Cuboidal follicular epithelium (Fc) covering the oocyte (Oc). Scale bar: 20 μm. (H) A follicle at the final stage of development with degenerating nurse cells (Nc). Yolk granules in the ooplasm (black arrow). Oc, oocyte; Fc, follicular cells. Scale bar: 10 µm.
Fig. 1 in Morphology of the ovary and spermatheca of the leafcutter ant Acromyrmex rugosus queens (Hymenoptera: Formicidae)
Fig. 1. General appearance of the Acromyrmex rugosus reproductive system. Ovariole (Ov); lateral oviduct (Lo); spermatheca (Sp); trachea associated with the ovarioles (white arrow). Scale bar: 500 μm.
Fig. 1 in Seasonal prevalence of queens and males in colonies of tawny crazy ants (Hymenoptera: Formicidae) in Florida
Fig. 1. Mean ± SE (n = 3–11) number of queens (including female dealates), volume of brood (mL), and number of male alates per colony, collected monthly in Gainesville (Alachua County), Florida, USA, to show monthly fluctuations within seasons designated as winter (Dec–Feb), spring (Mar–May), summer (Jun–Aug), and fall (Sep–Nov).
Fig. 1 in The seasonal reproductive status of tawny crazy ant queens (Hymenoptera: Formicidae) in Florida
Fig. 1. Ovaries dissected from Nylanderia fulva queens. (A) Ovary rated as a "2" (1–10 eggs) where the spermatheca is present. (B) Ovary rating of "4" (> 50 eggs).
Fig. 2 in The seasonal reproductive status of tawny crazy ant queens (Hymenoptera: Formicidae) in Florida
Fig. 2. Percent frequency of Nylanderia fulva queens with specified ovary ratings: 1 = 0 eggs; 2 = 1 to 10 eggs; 3 = 10 to 50 eggs; 4 => 50 eggs. (A) among seasons (winter: Dec–Feb, n = 155; spring: Mar–May, n = 90; summer: Jun–Aug, n = 150; fall: Sep–Nov, n = 126), and (B) between uninseminated (n = 65) and inseminated (n = 456) queens over all seasons.
Fig. 1 in Seasonal prevalence of queens and males in colonies of tawny crazy ants (Hymenoptera: Formicidae) in Florida
Fig. 1. Mean ± SE (n = 3–11) number of queens (including female dealates), volume of brood (mL), and number of male alates per colony, collected monthly in Gainesville (Alachua County), Florida, USA, to show monthly fluctuations within seasons designated as winter (Dec–Feb), spring (Mar–May), summer (Jun–Aug), and fall (Sep–Nov).
Figs. 20–23 in First discovery of the mangrove ant Pheidole sexspinosa Mayr, 1870 (Formicidae: Myrmicinae) from the Oriental region, with redescriptions of the worker, queen and male
Figs. 20–23. Genitalia of Pheidole sexspinosa male, non-type (ZRC_ENT00007290, Singapore, Mandai mangroves). 20, Pygostyle in dorsal view; 21, abdominal sternite IX in ventral view; 22, paramere and volsella, right side, inner view; 23, penisvalva, left side, outer view. Abbreviations: Bm = basimere; Cs = cuspis; Dg = digitus; Ga = gonostipital arm; Lp = lateral apodeme of penisvalva; Tm = telomere; Va = valvura; Vo = volsella.
Fig. 1 in First discovery of the mangrove ant Pheidole sexspinosa Mayr, 1870 (Formicidae: Myrmicinae) from the Oriental region, with redescriptions of the worker, queen and male
Fig. 1. Map of current known geographic distribution of Pheidole sexspinosa. The Lydekker Line is shown as a dotted line. Geographic coordinates of localities where P. sexspinosa was recorded were obtained from antmaps.org (http://www.antmaps.org). Localities for barcoded specimens are indicated with solid circles in red (Pheidole sexspinosa: MH726208 – 726210; Singapore; present study), blue (Pheidole sexspinosa: KJ141794.1, EF518404; Palau; Economo et al., 2015) and green (Pheidole sexspinosa biroi: KJ141800.1; Papua New Guinea; Economo et al., 2015), respectively.
Figs. 14–19 in First discovery of the mangrove ant Pheidole sexspinosa Mayr, 1870 (Formicidae: Myrmicinae) from the Oriental region, with redescriptions of the worker, queen and male
Figs. 14–19. Pheidole sexspinosa, non-type male (ZRC_ENT00007290, Singapore, Mandai mangroves). 14, Head in full-face view; 15, mesosoma and waist in dorsal view; 16, body in lateral view; 17, closeup of mesosoma and waist segments in lateral view; 18, hind wing in lateral view; 19, forewing in lateral view.
Figs. 6–10 in First discovery of the mangrove ant Pheidole sexspinosa Mayr, 1870 (Formicidae: Myrmicinae) from the Oriental region, with redescriptions of the worker, queen and male
Figs. 6–10. Pheidole sexspinosa, non-type minor (ZRC_ENT00007290, Singapore, Mandai mangroves). 6, Head in full-face view; 7, mesosoma and waist in dorsal view; 8, body in lateral view; 9, labial palpus in lateral view; 10, maxillary palpus in lateral view.
Figs. 11–13 in First discovery of the mangrove ant Pheidole sexspinosa Mayr, 1870 (Formicidae: Myrmicinae) from the Oriental region, with redescriptions of the worker, queen and male
Figs. 11–13. Pheidole sexspinosa, non-type dealate queen (ZRC_ENT00000768, Singapore, Kranji mangroves). 11, Head in full-face view; 12, mesosoma and waist in dorsal view; 13, body in lateral view.
Figs. 2–5 in First discovery of the mangrove ant Pheidole sexspinosa Mayr, 1870 (Formicidae: Myrmicinae) from the Oriental region, with redescriptions of the worker, queen and male
Figs. 2–5. Pheidole sexspinosa, non-type major (ZRC_ENT00007290, Singapore, Mandai mangroves). 2, Head in full-face view; 3, mesosoma and waist in dorsal view; 4, hypostoma in ventral view; 5, body in lateral view.
Data from: Has gene expression neofunctionalization in the fire ant antennae contributed to queen discrimination behavior?
Open the record for dataset details and reuse information.
Ontogeny of superorganisms: Social control of queen specialization in ants
<p>The functioning of biological systems relies on the cooperation of specialized components and understanding the processes that produce such specialization is a major challenge in biology. Here we study the ontogeny of biological systems at a new phenotypic level: the superorganisms (i.e., insect societies with specialized individuals). We investigate how founding queens, the earliest developmental stage of ant colonies, transition from expressing behavioral pluripotency to becoming strictly specialized in egg production. We demonstrate that the presence of workers both initiates and maintains this queen specialization and propose that such a social control of queen behavior is common in ants and regulated by ancestral mechanisms. These findings contradict the traditional view of social insect queens as being intrinsically specialized in egg production and may reshape our understanding of division of labor in insect societies. </p>
Queen execution in a monogynous ant
<p>Workers in many species of social insects are capable of laying unfertilized eggs, which can develop into haploid males. This causes a conflict about male parentage between queens and workers. In a few species, this may result in matricide, i.e., workers kill the colony's queen. Queen killing has so far been observed mainly in multi-queen colonies or in annual species, when the queen's fecundity declines at the end of the reproductive period. Here, we report queen expulsion and matricide in a monogynous, monandrous ant with perennial societies. Workers were seen to aggressively expel both related and unrelated queens from their nest shortly after the end of hibernation. Queen expulsion and matricide led to a significant decrease in the number of workers and brood, but eventually increased the direct fitness of workers through significant male production. Long-term observations revealed a short lifespan of queens, while workers in orphaned colonies survived and produced male offspring over several years.</p>
Figs 1–5 in Dealate queens of the ant genus Eurhopalothrix Brown et Kempf, 1961 (Hymenoptera: Formicidae: Myrmicinae) from Sumatra
Figs 1–5. Dealate gyne of Eurhopalothrix platisquama (colony: RS6ii2021-SU5,
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.