The genomics and evolution of inter-sexual mimicry and female-limited polymorphisms in damselflies

Nature Ecology & Evolution, Journal Year: 2023, Volume and Issue: 8(1), P. 83 - 97

Published: Nov. 6, 2023

Sex-limited morphs can provide profound insights into the evolution and genomic architecture of complex phenotypes. Inter-sexual mimicry is one particular type sex-limited polymorphism in which a novel morph resembles opposite sex. While inter-sexual mimics are known both sexes diverse range animals, their evolutionary origin poorly understood. Here, we investigated basis female-limited male common bluetail damselfly. Differential gene expression between has been documented damselflies, but no causal locus previously identified. We found that originated an ancestrally sexually dimorphic lineage association with multiple structural changes, probably driven by transposable element activity. These changes resulted ~900 kb content partly shared close relative, indicating trans-species polymorphism. More recently, third following translocation part male-mimicry sequence position ~3.5 mb apart. evidence balancing selection maintaining mimicry, line previous field population studies. Our results underscore how variants affecting handful potentially regulatory genes morph-specific give rise to phenotypic polymorphisms.

Language: Английский

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Partial honesty in a hummingbird polymorphism provides evidence for a hybrid equilibrium

Animal Behaviour, Journal Year: 2025, Volume and Issue: 222, P. 123104 - 123104

Published: Feb. 19, 2025

Language: Английский

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Potential caterpillar mimicry in a tropical hummingbird

Ecology, Journal Year: 2025, Volume and Issue: 106(3)

Published: March 1, 2025

Language: Английский

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Intersexual social dominance mimicry drives female hummingbird polymorphism

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1982)

Published: Sept. 7, 2022

Female-limited polymorphisms, where females have multiple forms but males only one, been described in a variety of animals, yet are difficult to explain because selection typically is expected decrease rather than maintain diversity. In the white-necked jacobin (Florisuga mellivora), all and approximately 20% express an ornamented plumage type (androchromic), while other non-ornamented (heterochromic). Androchrome benefit from reduced social harassment, it remains unclear why both morphs persist. Female may represent balanced alternative behavioural strategies, hypothesis that androchrome mimicking males. Here, we test critical prediction these hypotheses by measuring morphological, physiological traits relate resource-holding potential (RHP), or competitive ability. traits, find little difference between female types, higher RHP These results, together with previous findings this species, indicate increase access food resources through mimicry more aggressive Importantly, provides clear theoretical pathway for polymorphism maintenance frequency-dependent selection. Social dominance mimicry, long suspected operate can therefore also within leading perhaps similarities sexes generally.

Language: Английский

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Structural genomic variation and behavioral interactions underpin a balanced sexual mimicry polymorphism

Current Biology, Journal Year: 2024, Volume and Issue: 34(20), P. 4662 - 4676.e9

Published: Sept. 25, 2024

Language: Английский

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The Ancestral Modulation Hypothesis: Predicting Mechanistic Control of Sexually Heteromorphic Traits Using Evolutionary History

The American Naturalist, Journal Year: 2023, Volume and Issue: 202(3), P. 241 - 259

Published: April 12, 2023

AbstractAcross the animal kingdom there are myriad forms within a sex across, and even within, species, rendering concepts of universal traits moot. The mechanisms that regulate development these trait differences varied, although in vertebrates, common pathways involve gonadal steroid hormones. Gonadal steroids often associated with heteromorphic development, where found at higher circulating levels is one involved for sex. Occasionally, situations which or monomorphic another We propose verbal hypothesis, ancestral modulation hypothesis (AMH), uses evolutionary history trait-particularly ancestrally possessed values-to predict regulatory pathway governs expression. AMH predicts genomic architecture appears first to resolve sexual conflict an initially trait. This takes advantage existing sex-biased signals, pathway, generate heteromorphism. In cases other experiences pressure new phenotype, will co-opt by altering its signal match original high-trait-value describe integrated needed produce this pattern what expected outcomes be given present framework as testable scientific community investigate create further engagement analysis both ultimate proximate approaches

Language: Английский

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Cross-sexual Transfer Revisited

Integrative and Comparative Biology, Journal Year: 2023, Volume and Issue: 63(4), P. 936 - 945

Published: May 5, 2023

In her influential book "Developmental Plasticity and Evolution," Mary Jane West-Eberhard introduced the concept of cross-sexual transfer, where traits expressed in one sex an ancestral species become other sex. Despite its potential ubiquity, we find that transfer has been under-studied under-cited literature, with only a few experimental papers have invoked concept. Here, aim to reintroduce as powerful framework for explaining variation highlight relevance current studies on evolution sexual heteromorphism (different means or modes trait values between sexes). We discuss several exemplary published past two decades, further building West-Eberhard's extensive review. emphasize scenarios avenues study, within-sex polymorphic sex-role reversed species, evolutionary adaptive implications. Lastly, propose future questions expand our understanding from nonhormonal mechanisms identification broad taxonomic patterns. As biologists increasingly recognize nonbinary often continuous nature heteromorphism, important utility generating novel insights perspectives phenotypes across diverse taxa.

Language: Английский

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Function of juvenile plumage in the northern goshawk (Accipiter gentilis): aggressive mimicry hypothesis

Journal of Avian Biology, Journal Year: 2024, Volume and Issue: 2024(5-6)

Published: Jan. 18, 2024

Multiple raptors show juvenile plumage that is substantially different from of their parents. Here, we test the prediction colouration northern goshawk Accipiter gentilis resembling common buzzard Buteo buteo acts as a form aggressive mimicry. The specialises in hunting larger birds and mammals up to size geese or hares, while preys mostly on small rodents. Larger may thus consider goshawks less dangerous raptors, gain an advantage when hunting. We used Eurasian magpie Pica pica , prey goshawk, this prediction. compared behavioural responses parents defending freshly fledged young towards mounts adult buzzard. To be able assess whether behaviour differs nest predator harmless bird also presented raven Corvus corax pheasant Phasianus colchicus baseline stimuli. Both elicited antipredatory behaviour, but magpies took more risks facing goshawks. Additionally, intensity was higher than conclude do distinguish between goshawks, well they buzzards. They are threat particular represent respond accordingly. Analysis spectral reflectance stuffed specimens these three suggests there differences, which can for appropriate recognition. In conclusion, cannot confirm hypothesis mimicry interact with magpies.

Language: Английский

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Burying in lake sediments: A potential tactic used by female northern map turtles to avoid male harassment

Ethology, Journal Year: 2024, Volume and Issue: 130(9)

Published: June 14, 2024

Abstract How often males and females need to mate maximize their fitness is a source of sexual conflict in animals. Sexual over mating frequency can lead antagonistic coevolution which employ tactics coerce into mating, while resist or evade attempts by males. Here, we report on novel burying behavior observed female northern map turtles ( Graptemys geographica ) Opinicon Lake, Ontario, Canada that appears function as tactic avoid male detection during the season. Underwater videos indicated are heavily solicited season with half being actively pursued Biologgers less active remain deeper than Our data strongly suggest intense solicitation potential harassment themselves lake sediments. This be low‐cost solution for reduce costs resistance they constrained habitats high densities overwintering.

Language: Английский

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Tracking Small Animals in Complex Landscapes: A Comparison of Localisation Workflows for Automated Radio Telemetry Systems

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT Automated radio telemetry systems (ARTS) have the potential to revolutionise our understanding of animal movement by providing a near‐continuous record individual locations in wild. However, localisation errors ARTS data can be very high, especially natural landscapes with complex vegetation structure and topography. This curtails research questions that may addressed this technology. We set up an grid valley heterogeneous cover Colombian high Andes applied analytical pipeline test effectiveness methods. performed calibration trials simulate high‐ or low‐flight, walking on ground, compared workflows varying decisions related signal cleaning, selection, smoothing, interpretation, along four multilateration approaches. also quantified influence spatial features system's accuracy. Results showed large variation error, ranging between 0.4–43.4 m 474–1929 m, depending method used. found selection higher strengths smoothing based temporal autocorrelation are useful tools improve Moreover, terrain ruggedness, height movement, type, location animals inside outside area error. In case study system, thousands points were successfully estimated for two high‐altitude hummingbird species previously lacked data. Our hummingbirds suggests grids used estimate small animals' home ranges, associations types, seasonality occurrence. present comparative pipeline, highlighting variety possible while processing Overall, provides guidance resolution estimates, broadening application tracking technology ecology wild populations.

Language: Английский

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