Results 51 to 60 of about 652 (189)

Comparative transcriptomics reveals candidate carotenoid color genes in an East African cichlid fish

BMC Genomics, 2020
Background Carotenoids contribute significantly to animal body coloration, including the spectacular color pattern diversity among fishes. Fish, as other animals, derive carotenoids from their diet.
Ehsan Pashay Ahi, Laurène A. Lecaudey, Angelika Ziegelbecker, Oliver Steiner, Ronald Glabonjat, Walter Goessler, Victoria Hois, Carina Wagner, Achim Lass, Kristina M. Sefc   +9 more
doaj   +1 more source

Eye Darkening Under Dehydration Stress in the Neotropical Frog Boana punctata (Schneider, 1799)

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 8, Page 887-893, October 2026.
Dehydration induces a strong and partially reversible increase in iris pigmentation in the Neotropical frog Boana punctata. The tight relationship between iris darkening and hydration state identifies ocular pigmentation as a simple, non‐invasive physiological biomarker with broad potential for assessing hydric stress in amphibian populations ...
Ricardo Reques, Eduardo F. Schaefer, Eduardo A. Sanabria, Leonardo D. Aguiar, Lorena B. Quiroga, Miguel Tejedo   +5 more
wiley   +1 more source

Hierarchical Assembly as a Design Principle: Structure–Property Relationships Linking Biological Architectures to Functional Aggregate Materials

Aggregate, Volume 7, Issue 9, September 2026.
Biological function arises from aggregates rather than from molecules. Comparing biomimetic systems on a common basis reveals three transferable design rules governing hierarchical assembly, interfacial gradients, and stimulus‐coupled anisotropy, and identifies self‐healing and single‐step multiscale integration as properties that do not transfer to ...
Nafeesa Sarfraz, Sadaf Bibi, Muhammad Ibrar Ahmed, Jawad Hussain, Shahid Iqbal, Imran Mahmood Khan, Ajayan Vinu, Ibrahim Khan   +7 more
wiley   +1 more source

Melanophore and xanthophore development is disrupted in additional iridophore-deficient mutants.

, 2013
(A) Comparison of xanthophore and melanophore development in wild-type and ltk mutants. Shown are details at the horizontal myoseptum from larger images of representative wild-type (ltk/+) and ltk mutant, stage-matched siblings imaged daily (beginning at
David M. Parichy (144068), Larissa B. Patterson (144054)   +1 more
core   +1 more source

STUDIES ON THE MUTANTS OF THE MEDAKA, CO AND DI [PDF]

, 1985
1985-12In the medaka (Oryzias latipes), two mutants concerning the color changes of xanthophores were established in our laboratory. Gene analyses of these mutants were performed.
Tomita, H.
core   +1 more source

Beyond the Classics: The Synergy of AI and Genomics Reveals an Expanded Repertoire of Pigmentation Genes

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 6, Page 475-486, September 2026.
Classical approaches for coloration analysis are limited by human low‐resolution phenotyping and genetic analysis. Artificial intelligence allows us to find genes beyond the tip of the iceberg that explain color and pattern diversity in nature. ABSTRACT Pigmentation has long served as a powerful system for exploring gene–trait relationships, yet much ...
Ehsan Pashay Ahi, Nidal Karagic
wiley   +1 more source

Interactions with iridophores and the tissue environment required for patterning melanophores and xanthophores during zebrafish adult pigment stripe formation.

PLoS Genetics, 2013
Skin pigment patterns of vertebrates are a classic system for understanding fundamental mechanisms of morphogenesis, differentiation, and pattern formation, and recent studies of zebrafish have started to elucidate the cellular interactions and molecular
Larissa B Patterson, David M Parichy
doaj   +1 more source

Shifty Frogs: Evidence of Iridescence Among Amphibians

Austral Ecology, Volume 51, Issue 7, July 2026.
ABSTRACT Iridescence is a striking optical phenomenon observed in some animals whereby colour or reflectivity changes based on viewing angle, such that two observers in different locations may simultaneously perceive the same tissue differently. Among amphibians, there is limited photographic evidence of tissues displaying colour shifts that define ...
John Gould
wiley   +1 more source

Comparison of Human Melanoma Single Cell Profiles to Evolutionary Medicine Model Xiphophorus Provides Insights in Disease Control

Pigment Cell &Melanoma Research, Volume 39, Issue 4, July 2026.
Single‐nucleus RNA sequencing analysis of Xiphophorus melanoma, an evolutionary medicine model, revealed cellular heterogeneity that closely mirrors that of human melanoma. Immune and tumor cell subtyping identified an immune‐evasive tumor microenvironment. This melanoma cell atlas provides a framework for investigating conserved cellular and molecular
Yuan Lu, Will Boswell, Rachel Carroll, Maggs X, Yanting Xing, Wesley C. Warren, Manfred Schartl   +6 more
wiley   +1 more source

Re-expression of Kitlga, Csf1a, and Csf1b in bnc2 mutants promoted melanophore and xanthophore development but was insufficient for stripe patterning.

, 2013
(A) Melanophore recovery following heat-shock induction of Tg(hsp70l:kitlga). Although Kitlga expression increased melanophore numbers in bnc2 mutant larvae, the restored melanophores failed to develop into stripes.
David M. Parichy (144068), Larissa B. Patterson (144054)   +1 more
core   +1 more source