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63 results for “Solenopsis invicta”
Allele scores and frequencies of 66 microsatellite locus loci in Solenopsis invicta
<p>Allele scores and frequencies of 66 microsatellite loci in <em>Solenopsis invicta </em>samples were analyzed from 65 populations and 1,074 individuals.</p> <p>65 populations were collected from South Korea, China, Taiwan, and the United States.</p>
Data from: Decreased small mammal and on-host tick abundance in association with invasive red imported fire ants (Solenopsis invicta)
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Data from: Invasion and high-elevation acclimation of the red imported fire ant, Solenopsis invicta, in the southern Blue Ridge escarpment region
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Data from: Disruption of gene expression in hybrids of the fire ants Solenopsis invicta and Solenopsis richteri
Transcriptome analysis is a powerful tool for unveiling the distribution and magnitude of genetic incompatibilities between hybridizing taxa. The nature of such incompatibilities is closely associated with the evolutionary histories of the parental species and may differ across tissues and between the sexes. In eusocial insects, the presence of castes that experience divergent selection regimes may result in additional distinct patterns of caste-specific hybrid incompatibilities. We analyzed levels of expression of >14,000 genes in two life stages of each caste and sex in the fire ants S. invicta and S. richteri and in their hybrids. We found strong contributions of both developmental stage and caste to gene expression patterns. Hybrid incompatibilities were surprisingly modest: only 32 genes were mis-expressed, indicating low levels of disruption in gene regulation in hybrids. The castes differed in numbers of mis-expressed genes, with males and workers each mis-expressing at least seven times as many genes as queens. Interestingly, homologues of many of the mis-expressed genes have been implicated in behavioral variation in Drosophila melanogaster. General expression profiles of hybrids were more similar to those of S. richteri than S. invicta, presumably because S. richteri trans-regulatory elements tend to be dominant to those of S. invicta and/or because there is an overall bias in the genetic composition of the hybrids towards S. richteri. Altogether, our results suggest that selection acting on each caste may contribute differently to interspecific divergence and speciation in this group of ants.
Data from: Distinct colony boundaries and larval discrimination in polygyne red imported fire ants (Solenopsis invicta)
<p>Evaluating the factors that promote invasive ant abundance is critical to assess their ecological impact and inform their management. Many invasive ant species show reduced nestmate recognition and an absence of boundaries between unrelated nests, which allow populations to achieve greater densities due to reduced intraspecific competition. We examined nestmate discrimination and colony boundaries in introduced populations of the red imported fire ant (<i>Solenopsis invicta</i>; hereafter, fire ant). Fire ants occur in two social forms: monogyne (colonies with a single egg-laying queen) and polygyne (colonies with multiple egg-laying queens). In contrast with monogyne nests, polygyne nests are thought to be interconnected due to the reduced antagonism between non-nestmate polygyne workers, perhaps because polygyne workers habituate the colony to an odor unique to <i>Gp-9<sup>b</sup></i>-carrying adults. However, colony boundaries and nestmate discrimination are poorly documented, particularly for worker-brood interactions. To delimit boundaries between field colonies, we correlated the exchange of a <sup>15</sup>N-glycine tracer dissolved in a sucrose solution with social form. We also evaluated nestmate discrimination between polygyne workers and larvae in the laboratory. Counter to our expectations, polygyne colonies behaved identically to monogyne colonies, suggesting both social forms maintain strict colony boundaries. Polygyne workers also preferentially fed larval nestmates and may have selectively cannibalized non-nestmates. The levels of relatedness among workers in polygyne colonies was higher than those previously reported in North America (mean ±SE: 0.269 ± 0.037). Our study highlights the importance of combining genetic analyses with direct quantification of resource exchange to better understand the factors influencing ant invasions.</p>
Fig. 4 in Successful transcription but not translation or assembly of Solenopsis invicta virus 3 in a baculovirus-driven expression system
Fig. 4. Quantitative PCR (absolute) results evaluating transcript production of SINV-3 by AcSINV-3-infected Sf21 cells. RNA preparations from AcSINV-3 (2 rep- licates, Ci and Di) were treated with DNase I, reverse transcribed, and amplified by qPCR. Results were compared with a series of plasmid constructs containing a portion of the SINV-3 genome (102–109 genome equivalents). The region amplified was at the 3'-most end of ORF2 (see Fig. 2). No amplification was detected in polyhedrin-negative AcRP23.lacZ preparations.
Fig. 1 in Solenopsis invicta virus 3: Further host-specificity tests with native Solenopsis ants (Hymenoptera: Formicidae)
Fig. 1. Representative western blot analyses to detect the presence of SINV-3 capsid protein (VP2) in different ant species. Lane assignments are as follows: 1) purified SINV-3; 2) S. invicta negative control colony; 3,4) S. aurea; 5,6) S. xyloni; 7) S. carolinensis; 8,9) S. molesta; 10,11) S. invicta positive control colonies. Mo- lecular retention indicated as kDa.
Data from: Distinct colony boundaries and larval discrimination in polygyne red imported fire ants (Solenopsis invicta)
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Data from: Disruption of gene expression in hybrids of the fire ants Solenopsis invicta and Solenopsis richteri
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Data from: Social chromosome variants differentially affect queen determination and the survival of workers in the fire ant Solenopsis invicta
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Worker antennal gene expression in Solenopsis invicta identifies candidate genes for queen discrimination (Nugen_lib_RNA-seq-2)
GEO Series GSE126674. Solenopsis invicta. 3 samples. Type: Expression profiling by high throughput sequencing.
Worker antennal gene expression in Solenopsis invicta identifies candidate genes for queen discrimination
GEO Series GSE126684. Solenopsis invicta. 18 samples. Type: Expression profiling by high throughput sequencing.
Worker antennal gene expression in Solenopsis invicta identifies candidate genes for queen discrimination (Nugen_lib_RNA-seq-1)
GEO Series GSE126368. Solenopsis invicta. 12 samples. Type: Expression profiling by high throughput sequencing.
DNA methylomes of the fire ant Solenopsis invicta.
GEO Series GSE39959. Solenopsis invicta. 4 samples. Type: Methylation profiling by high throughput sequencing.
Worker antennal gene expression in Solenopsis invicta identifies candidate genes for queen discrimination (Clontech_lib_RNA-seq)
GEO Series GSE126673. Solenopsis invicta. 3 samples. Type: Expression profiling by high throughput sequencing.
Effects of ploidy and sex-locus genotype on gene expression patterns in the fire ant Solenopsis invicta
GEO Series GSE42786. Solenopsis invicta. 90 samples. Type: Expression profiling by array.
Gene expression in Solenopsis invicta, Solenopsis richteri and hybrids
GEO Series GSE35217. Solenopsis invicta x Solenopsis richteri; Solenopsis richteri; Solenopsis invicta. 140 samples. Type: Expression profiling by array.
Timecourse of gene expression after oprhaning of virgin Solenopsis invicta fire ant queens
GEO Series GSE19721. Solenopsis invicta. 24 samples. Type: Expression profiling by array.
Effects of ploidy and sex-locus genotype on gene expression patterns in the fire ant Solenopsis invicta [pupa]
GEO Series GSE42494. Solenopsis invicta. 30 samples. Type: Expression profiling by array.
Effects of ploidy and sex-locus genotype on gene expression patterns in the fire ant Solenopsis invicta [1d]
GEO Series GSE42779. Solenopsis invicta. 30 samples. Type: Expression profiling by array.
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