The BTB-ZF gene Bm-mamo regulates pigmentation in silkworm caterpillars DOI Creative Commons
Songyuan Wu, Xiaoling Tong,

Chenxing Peng

et al.

eLife, Journal Year: 2023, Volume and Issue: 12

Published: Sept. 1, 2023

The color pattern of insects is one the most diverse adaptive evolutionary phenotypes. However, molecular regulation this not fully understood. In study, we found that transcription factor Bm-mamo responsible for black dilute (bd) allele mutations in silkworm. belongs to BTB zinc finger family and orthologous mamo Drosophila melanogaster. This gene has a conserved function gamete production silkworms evolved pleiotropic patterns caterpillars. Using RNAi clustered regularly interspaced short palindromic repeats (CRISPR) technology, showed repressor dark melanin larval epidermis. vitro binding assays expression profiling wild-type mutant larvae, also likely regulates related pigment synthesis cuticular protein genes coordinated manner mediate its role formation. mechanism consistent with dual regulating both structure shape cuticle pigments are embedded within it. study provides new insight into as well construction more complex epidermal features some insects.

Language: Английский

Recent progress on structural coloration DOI Creative Commons
Yingjie Li,

Jingtian Hu,

Yixuan Zeng

et al.

Photonics Insights, Journal Year: 2024, Volume and Issue: 3(2), P. R03 - R03

Published: Jan. 1, 2024

Structural coloration generates colors by the interaction between incident light and micro- or nano-scale structures. It has received tremendous interest for decades, due to advantages including robustness against bleaching environmentally friendly properties (compared with conventional pigments dyes). As a versatile strategy, tuning of structural based on nanoscale photonic structures been extensively explored can enable broad range applications displays, anti-counterfeiting, coating. However, scholarly research had limited impact commercial products because their disadvantages in cost, scalability, fabrication. In this review, we analyze key challenges opportunities development colors. We first summarize fundamental mechanisms design strategies while reviewing recent progress realizing dynamic coloration. The promising potential optical information processing displays are also discussed elucidating most prominent that prevent them from translating into technologies market. Finally, address new underexplored community but be achieved through multidisciplinary within emerging areas.

Language: Английский

Citations

8
The BTB-ZF gene Bm-mamo regulates pigmentation in silkworm caterpillars DOI Creative Commons
Songyuan Wu, Xiaoling Tong,

Chenxing Peng

et al.

eLife, Journal Year: 2024, Volume and Issue: 12

Published: April 8, 2024

The color pattern of insects is one the most diverse adaptive evolutionary phenotypes. However, molecular regulation this not fully understood. In study, we found that transcription factor Bm-mamo responsible for black dilute ( bd ) allele mutations in silkworm. belongs to BTB zinc finger family and orthologous mamo Drosophila melanogaster . This gene has a conserved function gamete production silkworms evolved pleiotropic patterns caterpillars. Using RNAi clustered regularly interspaced short palindromic repeats (CRISPR) technology, showed repressor dark melanin larval epidermis. vitro binding assays expression profiling wild-type mutant larvae, also likely regulates related pigment synthesis cuticular protein genes coordinated manner mediate its role formation. mechanism consistent with dual regulating both structure shape cuticle pigments are embedded within it. study provides new insight into as well construction more complex epidermal features some insects.

Language: Английский

Citations

5
Multi-scale dissection of wing transparency in the clearwing butterfly Phanus vitreus DOI Creative Commons

Cédric Finet,

Qifeng Ruan,

Yi Yang Bei

et al.

Journal of The Royal Society Interface, Journal Year: 2023, Volume and Issue: 20(202)

Published: May 1, 2023

Optical transparency is rare in terrestrial organisms, and often originates through loss of pigmentation reduction scattering. The coloured wings some butterflies moths have repeatedly evolved transparency, offering examples how they function optically biologically. Because pigments are primarily localized the scales that cover a colourless wing membrane, has complete or radical modification their shape. Whereas bristle-like been well documented glasswing butterflies, other scale modifications resulting remain understudied. butterfly Phanus vitreus achieves while retaining its exhibiting blue/cyan transparent zones. Here, we investigate mechanism P. by light microscopy, focused ion beam milling, microspectrophotometry optical modelling. We show achieved via vertical orientation normal paddle-like scales. These alterations combined with an anti-reflective nipple array on portions membrane being more exposed to light. blueish coloration regions due properties local nanostructures. retention patches might be explained these perpendicular having hydrophobic properties.

Language: Английский

Citations

11
Optix regulates nanomorphology of butterfly scales primarily via its effects on pigmentation DOI Creative Commons
Tirtha Das Banerjee,

Cédric Finet,

Kwi Shan Seah

et al.

Frontiers in Ecology and Evolution, Journal Year: 2024, Volume and Issue: 12

Published: May 1, 2024

Previous studies have shown that Optix regulates lower lamina thickness and the type of pigment is produced in wing scales a few butterfly species. However, role regulating production across species, additional aspects scale morphology remains to be investigated. By combining microspectrophotometry, scanning electron microscopy, focused ion beam technology on wild-type Bicyclus anynana crispants, we show orange pigments (ommochromes), represses brown (melanins), upper surface scales. Our findings suggest conserved as switch gene activates ommochrome melanin synthesis butterflies. comparing these effects with other mutations, where only removed from scales, propose pigmentary changes, alone, affect way chitin polymerizes within scale, changing well multiple intricate structures surface.

Language: Английский

Citations

3
Animal transparency: How should we define form and function? DOI Creative Commons
James B. Barnett, Justin Yeager, Karin Kjernsmo

et al.

Functional Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Abstract Animals use colour for a wide range of adaptive functions, ranging from cryptic colours that blend into their environments to bright, conspicuous signals convey information, either attract mates or ward off predators and rivals. However, perhaps one the most intriguing adaptations is how animals can make absence through transparency. Animal transparency has long been understood as form camouflage, allowing see straight prey if it were not there. take many different forms, both in terms degree transparency, opaque translucent transparent extent coverage, with combinations regions. Despite this variation, often regarded unique concealment synonymised background‐matching camouflage. Yet, empirical evidence increasingly demonstrating forms may facilitate defensive communicative strategies. Here, we contextualise potential functions wider framework visual ecology, review strategies highlight areas need continued research. We find that, despite its seemingly intuitive role fulfil including facilitating several conceptually distinct camouflage (e.g. background matching, disruption, masquerade edge diffusion), mimicry (both Batesian Müllerian) enhancing (such aposematism, mate choice territory defence). ecological behavioural questions remain be addressed, caution needed when assessing interpreting function Read free Plain Language Summary article on Journal blog.

Language: Английский

Citations

0
Editorial: Biological and physical basis of the development of integument and associated structures DOI Creative Commons

Cédric Finet,

Anupama Prakash

Frontiers in Ecology and Evolution, Journal Year: 2025, Volume and Issue: 13

Published: May 6, 2025

Language: Английский

Citations

0
Ridge and crossrib height of butterfly wing scales is a toolbox for structural color diversity DOI Open Access

Cédric Finet,

Qifeng Ruan,

Yi Yang Bei

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: April 1, 2024

ABSTRACT The brightest and most vivid colors of butterflies usually originate from light reflecting off the cuticular scales that cover wing membrane. These have an intricate architecture consists upper layer, a grid longitudinal ridges transverse crossribs, connected to lower lamina by pillars called trabeculae. Whereas role as reflector has been well documented in simpler scales, this study unveils scales’ surface generating or fine-tuning hue, brightness, saturation. In nymphalid Bicyclus anynana , we showed changes ridge trabecula heights accompanied hue produced via artificial selection. We further found correlation between height can be generalized 40 scale types 35 species across butterfly families. By combining focused ion beam milling, microspectrophotometry, optical modelling, modifying is sufficient change notably Morpho didius whose blue color was thought generated exclusively lamella protruding ridges, rather than height. This identifies scale’s toolbox for structural diversity proposes geometrical model predict unifies with without -type Christmas-tree ridges.

Language: Английский

Citations

2
Developmental genetics of cuticular micro- and nano-structures in insects DOI

Cédric Finet

Current Opinion in Insect Science, Journal Year: 2024, Volume and Issue: 65, P. 101254 - 101254

Published: Aug. 31, 2024

Language: Английский

Citations

2
Nursing faculty members' response to bullying in the eyes of their students: A pilot study in Pangasinan DOI
Jordan Llego,

Marry Ann A. Samson,

Ellen Gabriel

et al.

Nurse Education Today, Journal Year: 2024, Volume and Issue: 138, P. 106195 - 106195

Published: April 4, 2024

Language: Английский

Citations

0
The BTB-ZF geneBm-mamoregulates pigmentation in silkworm caterpillars DOI Open Access
Songyuan Wu, Xiaoling Tong,

Chenxing Peng

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: April 7, 2023

Abstract The color pattern of insects is one the most diverse adaptive evolutionary phenotypes. However, molecular regulation this not fully understood. In study, we found that transcription factor Bm-mamo responsible for black dilute ( bd ) allele mutations in silkworm. belongs to BTB zinc finger family and orthologous mamo Drosophila melanogaster . This gene has a conserved function gamete production silkworms evolved pleiotropic patterns caterpillars. Using RNAi clustered regularly interspaced short palindromic repeats (CRISPR) technology, showed repressor or dark melanin larval epidermis. vitro binding assays expression profiling wild-type mutant larvae, also likely regulates related pigment synthesis cuticular protein genes coordinated manner mediate its role formation. mechanism consistent with dual regulating both structure shape cuticle pigments are embedded within it. study provides new insight into as well construction more complex epidermis features some insects.

Language: Английский

Citations

0