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149 results for “field cricket”
Influence of female cuticular hydrocarbon (CHC) profile on male courtship behavior in two hybridizing field crickets Gryllus firmus and Gryllus pennsylvanicus.
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Data from: Ejaculate investment differs by population, but not wing morph or perceived sperm competition risk, in Pacific field crickets
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Data from: Mapping reduced introgression loci to the X chromosome of the hybridizing field crickets, Gryllus firmus and G. pennsylvanicus
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Evidence for genetic isolation and local adaptation in the field cricket Gryllus campestris
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Data for: Anthropogenic light impacts life-history traits and induces a trade-off in female field crickets
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Data for Geographic variation in phenotypic divergence between two hybridizing field cricket species
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Data from: Patterns of genomic heterogeneity in a classic field cricket mosaic hybrid zone
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Data from: Sexual signal loss in field crickets maintained despite strong sexual selection favoring singing males
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Dietary melatonin supplementation mitigates the negative effects of artificial light at night in the Pacific field cricket, Teleogryllus oceanicus
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FIG. 4 in Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment
FIG. 4. Monophyly of North American Gryllus is strongly supported by (A) RAxML analysis of concatenated data (492,531 bp) with bootstrap values, and by (B) Astral analysis of gene trees (563 loci) with quadripartition branch support values.
FIG. 7 in Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment
FIG. 7. Phylogeny of Gryllus panel 1 of 4. RAxML tree (left) with taxon names; Astral tree (right) with thin lines connecting tips to taxon names. Support value color codes:> 90% = bright green;> 80% and <90% = green;> 70% and <80% = olive;> 60% and <70% = orange/brown;> 50% and <60% = red; <50% = black
FIG. 2 in Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment
FIG. 2. Alexander's first phylogeny of US Gryllus principally based on life-cycle considerations. Redrawn from Alexander (1968). * Note: G. texensis was labeled as G. integer in Alexander's original figure, see Cade & Otte (2000).
FIG. 3 in Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment
FIG. 3. Two mtDNA phylogenies of US Gryllus. (A) Strict consensus of two shortest trees from maximum parsimony analysis of mtDNA restriction sites (redrawn from Harrison & Bogdanowicz 1995). (B) Minimum evolution tree for ~1500 bp of combined Cytochrome b and 16S mtDNA sequence data (redrawn from Huang et al. 2000, with 'G. assimilis CA' renamed G. multipulsator following Weissman et al. 2009)
Fig. 1. Top 10 in Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment
Fig. 1. Top 10 categories of publications involving Gryllus field crickets; data are from the Web of Science and represent 2914 records from 1903 – 2019.
FIG. 6 in Multilocus phylogeny of Gryllus field crickets (Orthoptera: Gryllidae: Gryllinae) utilizing anchored hybrid enrichment
FIG. 6. Overview of in-group taxa relationships based on Astral gene-tree analysis, with quadripartition branch support values. The named Groups correspond to Weissman & Gray (2019).
FIGURE 2. Perugryllus ranoredium n in Studies in Colombian Ensifera and adjacent countries: New taxa of smallest field crickets (Orthoptera: Gryllidae: Gryllinae)
FIGURE 2. Perugryllus ranoredium n. sp. male genitalia. A. Dorsal. B. Ventral and C. Lateral view respectively.
FIGURE 1. Perugryllus ranoredium n in Studies in Colombian Ensifera and adjacent countries: New taxa of smallest field crickets (Orthoptera: Gryllidae: Gryllinae)
FIGURE 1. Perugryllus ranoredium n. sp. male. A. Habitus in lateral view and B. dorsal view. C. Frons. D. Head pronotum and wings in dorsal view.
Spermatophore retention may accommodate sexual signal loss in pacific field crickets
<p>Sexual signals are gained and lost over evolutionary time. While signal gain has obvious fitness benefits, signal loss should present significant costs due to decreased mating opportunities. Because sexual signal loss has rarely been observed in real time, it is unclear how this process unfolds in nature. Just as female mating preferences can promote evolutionary gain and elaboration of sexual signals, they may also facilitate signal loss. We investigated how two components of female mate choice are involved in rapid sexual signal loss in the Pacific field cricket (<i>Teleogryllus oceanicus</i>), in which many males have lost the ability to sing. Males that can sing ("normal-wings") and obligately silent males ("flatwings") coexist in Hawaiian populations. While we know that females prefer not to mate with flatwings, we tested whether females discriminate against flatwing males before copulation due to the lack of song, or something inherent about their wing morphology. We combined this assessment with a test of post-copulatory preference by presenting females with either a normal-wing or flatwing male in the presence or absence of a courtship song stimulus. Females took significantly longer to mount males in the absence of courtship song regardless of male wing morph. This is the first evidence that females discriminate against the absence of song during mate choice, not male wing morph. However, females retained spermatophores for equally long regardless of male wing morph and whether they heard courtship song. Pre- and post-copulatory sexual selection do not operate synchronously in this system, which may help explain the success of the silent morph in wild populations.</p>
FIGURE 152. Field collected adult female S in Generic relationships of New World Jerusalem crickets (Orthoptera: Stenopelmatoidea:Stenopelmatinae), including all known species of Stenopelmatus
FIGURE 152. Field collected adult female S. sartorianus, from Monteverde, Costa Rica (S00-21) with 8 inner rear leg tibial spines on left side.
Data from: Demography and selection shape transcriptomic divergence in field crickets
Gene flow, demography, and selection can result in similar patterns of genomic variation and disentangling their effects is key to understanding speciation. Here, we assess transcriptomic variation to unravel the evolutionary history of Gryllus rubens and G. texensis, cryptic field cricket species with highly divergent mating behavior. We infer their demographic history and screen their transcriptomes for footprints of selection in the context of the inferred demography. We find strong support for a long history of bidirectional gene flow, which ceased during the late Pleistocene, and a bottleneck in G. rubens consistent with a peripatric origin of this species. Importantly, comparing the observed FST distribution with distributions from coalescent simulations under various demographic scenarios indicates that gene flow (without selection) strongly shaped patterns of genetic divergence. Genetic divergence at FST outlier loci could thus falsely be attributed to selection when not accounting for demographic history. We uncovered a subset of loci with signatures of selection, many of which are candidates for controlling variation in mating behavior. Our results underscore the importance of gene flow and demography in overall levels of genetic divergence and highlight that simultaneously examining demography and selection facilitates a more complete understanding of genetic divergence during speciation.
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International Brain Laboratory public data
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OpenNeuro
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