Subtle Introgression Footprints at the End of the Speciation Continuum in a Clade of Heliconius Butterflies DOI Creative Commons
Quentin Rougemont, Bárbara Huber, Simon H. Martin

et al.

Molecular Biology and Evolution, Journal Year: 2023, Volume and Issue: 40(7)

Published: July 1, 2023

Abstract Quantifying gene flow between lineages at different stages of the speciation continuum is central to understanding speciation. Heliconius butterflies have undergone an adaptive radiation in wing color patterns driven partly by natural selection for local mimicry. Color are also known be used as assortative mating cues. Therefore, pattern divergence considered play a role A corollary that mimicry closely related species may associated with hybridization and interfere reproductive isolation. Here, we take multifaceted approach explore history, boundaries, traits involved differentiation two species, hecale ismenius. We focus on geographic regions where mimic each other contrast this they do not other. To examine population history flow, tested compared four-population model accounting linked selection. This suggests remained isolated large part their yet small amount exchange. Accordingly, signatures genomic introgression were except major allele chemosensing genes stronger mimetic populations nonmimetic populations. Behavioral assays confirm visual confusion exists but short-range cues determine strong sexual Tests chemical identified differences putative pheromones which likely mediate mate choice maintenance differences.

Language: Английский

Socket Array Irregularities and Wing Membrane Distortions at the Eyespot Foci of Butterfly Wings Suggest Mechanical Signals for Color Pattern Determination DOI Creative Commons

Yugo Nakazato,

Joji M. Otaki

Insects, Journal Year: 2024, Volume and Issue: 15(7), P. 535 - 535

Published: July 16, 2024

Eyespot foci on butterfly wings function as organizers of eyespot color patterns during development. Despite their importance, focal structures have not been examined in detail. Here, we microscopically scales, sockets, and the wing membrane both expanded unexpanded using Blue Pansy

Language: Английский

Citations

3

The influence of transposable elements on animal colouration DOI Creative Commons
James D. Galbraith, Alexander Hayward

Trends in Genetics, Journal Year: 2023, Volume and Issue: 39(8), P. 624 - 638

Published: May 12, 2023

Transposable elements (TEs) are mobile genetic sequences present within host genomes. TEs can contribute to the evolution of traits, since transposition is mutagenic and often contain regulatory protein coding sequences. We review cases where influence animal colouration, reporting major patterns outstanding questions. TE-induced colouration phenotypes typically arise via introduction novel splice sites, affecting pigment cell development or synthesis. discuss if particular TE types may be more frequently involved in colour variation animals, given that examples involving long terminal repeat (LTR) appear dominate. Currently, animals mainly concern model domesticated insect mammal species. However, several influential recent examples, coupled with increases genome sequencing, suggest reported from wild species will increase considerably.

Language: Английский

Citations

7

Exploring the patterns of evolution: Core thoughts and focus on the saltational model DOI
Gabriele Usai, Marco Fambrini, Claudio Pugliesi

et al.

Biosystems, Journal Year: 2024, Volume and Issue: 238, P. 105181 - 105181

Published: March 11, 2024

Language: Английский

Citations

2

Polarization vision in invertebrates: beyond the boundaries of navigation DOI
Pratibha Yadav, Mark Shein‐Idelson

Current Opinion in Insect Science, Journal Year: 2021, Volume and Issue: 48, P. 50 - 56

Published: Oct. 9, 2021

Language: Английский

Citations

15

Subtle Introgression Footprints at the End of the Speciation Continuum in a Clade of Heliconius Butterflies DOI Creative Commons
Quentin Rougemont, Bárbara Huber, Simon H. Martin

et al.

Molecular Biology and Evolution, Journal Year: 2023, Volume and Issue: 40(7)

Published: July 1, 2023

Abstract Quantifying gene flow between lineages at different stages of the speciation continuum is central to understanding speciation. Heliconius butterflies have undergone an adaptive radiation in wing color patterns driven partly by natural selection for local mimicry. Color are also known be used as assortative mating cues. Therefore, pattern divergence considered play a role A corollary that mimicry closely related species may associated with hybridization and interfere reproductive isolation. Here, we take multifaceted approach explore history, boundaries, traits involved differentiation two species, hecale ismenius. We focus on geographic regions where mimic each other contrast this they do not other. To examine population history flow, tested compared four-population model accounting linked selection. This suggests remained isolated large part their yet small amount exchange. Accordingly, signatures genomic introgression were except major allele chemosensing genes stronger mimetic populations nonmimetic populations. Behavioral assays confirm visual confusion exists but short-range cues determine strong sexual Tests chemical identified differences putative pheromones which likely mediate mate choice maintenance differences.

Language: Английский

Citations

6