Results 51 to 60 of about 1,094 (155)

A Dynamic Change of Microglial States Occurs During the Transition From Photoreceptor Degeneration to Regeneration in Zebrafish pde6c Mutants

open access: yesGlia, Volume 74, Issue 6, June 2026.
Zebrafish pde6c mutants undergo photoreceptor degeneration from 5 dpf, but rods regenerate from 4 wpf. scRNA‐seq of retinal microglia reveals dynamic change of states between 5 dpf and 4 wpf. Two states emerge specifically during regeneration. ABSTRACT Microglia, brain‐resident immune cells, maintain brain homeostasis.
Darshini Ravishankar   +2 more
wiley   +1 more source

Dual Knockout Models of the Spatially and Functionally Conserved rgra and rgrb Zebrafish Genes Reveal the Requirement of RGR for the Integrity of Cone‐Mediated Photopic Vision, the Photopic Visual Cycle and Bruch's Membrane Morphology

open access: yesThe FASEB Journal, Volume 40, Issue 10, 31 May 2026.
This study investigates the role of the vision gene RGR using novel dual knockout zebrafish models. The loss of rgra and rgrb results in zebrafish larvae having reduced visual function and altered retinoid profiles under light but not dark conditions. The OKR phenotype is enhanced under higher light intensities.
Grace Ruddin   +13 more
wiley   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, Volume 36, Issue 38, 11 May 2026.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

Bar, stripe and spot development in sand-dwelling cichlids from Lake Malawi

open access: yesEvoDevo, 2019
Background Melanic patterns such as horizontal stripes, vertical bars and spots are common among teleost fishes and often serve roles in camouflage or mimicry. Extensive research in the zebrafish model has shown that the development of horizontal stripes
Laura A. Hendrick   +5 more
doaj   +1 more source

Xanthophore Distribution of Nemo (Amphiprion ocellaris) Skin Based on various Concentrations of Carotenoid Sources

open access: yesJurnal Ilmiah Perikanan dan Kelautan, 2023
The decreased color intensity of  Nemo is related to the amount of carotenoid concentration in the xanthophore of Nemo's skin. Therefore, efforts are needed to maintain stable carotenoid production. Tomato is one of the most abundant carotenoid producers.
Rini Pratiwi   +2 more
doaj   +1 more source

Homotypic cell competition regulates proliferation and tiling of zebrafish pigment cells during colour pattern formation

open access: yesNature Communications, 2016
Melanophores, iridophores and xanthophores are pigment-cell types that interact to form the stripes in zebrafish. Here, the authors study the interaction between cells of the same kind and show that each pigment-cell type covers the skin by contact based
Brigitte Walderich   +3 more
doaj   +1 more source

The Evolution of Giant Clam Science: From Foundational Studies to Emerging Frontiers

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
This review synthesizes nearly two centuries of giant clam research, identifying dominant themes, knowledge gaps, and emerging opportunities. Ecology, physiology, aquaculture, genomics, and biomineralization dominate the field, whereas anatomy and biotechnology remain underexplored. Future progress requires stronger integration of genomics, physiology,
Anthony Fam   +4 more
wiley   +1 more source

High Contrast Markings Can Negate the Benefits of Transparent Camouflage

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
Transparency is perhaps theoretically the most efficient means of achieving camouflage; however, in application, species show considerable variance in their degree of transparency. We demonstrate the fragility of transparent camouflage, detailing how imperfections reduce efficacy with implications in predation risk. ABSTRACT Transparency is, in theory,
Justin Yeager   +3 more
wiley   +1 more source

Post‐Oviposition Embryonic Staging Scheme for the Delicate Skink, Lampropholis delicata

open access: yesJournal of Morphology, Volume 287, Issue 4, April 2026.
We detail the morphology of post‐oviposition embryos throughout development and compare it with reptilian embryonic staging schemes from other squamates. We identified 16 embryo stages based on the development of limbs, eyes, brain, branchial arches, frontonasal prominence, otic vesicle, scales, and pigmentation.
Jinglin Wen, Oliver William Griffith
wiley   +1 more source

Stress‐induced changes in color expression mediated by iridophores in a polymorphic lizard [PDF]

open access: yesEcology and Evolution, 2017
AbstractStress is an important potential factor mediating a broad range of cellular pathways, including those involved in condition‐dependent (i.e., honest) color signal expression. However, the cellular mechanisms underlying the relationship between stress and color expression are largely unknown.
Anna C. Lewis   +3 more
openaire   +3 more sources

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