Zebrafish Pigmentation
Zebrafish Pigmentation - Related Videos
07:16
Reverse Genetic Approach to Identify Regulators of Pigmentation using Zebrafish
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2022
Regulators of melanocyte functions govern visible differences in the pigmentation outcome. Deciphering the molecular function of the candidate pigmentation gene poses a challenge. Herein, we demonstrate the use of a zebrafish model system to identify candidates and classify them into regulators of melanin content and melanocyte number.
08:41
Quantifying Abdominal Pigmentation in Drosophila melanogaster
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Cited by 5 •
2017
This work presents a method to quickly and precisely quantify the abdominal pigmentation of Drosophila melanogaster using digital image analysis. This method streamlines the procedures between phenotype acquisition and data analysis and includes specimen mounting, image acquisition, pixel value extraction, and trait measurement.
07:58
Nephrotoxin Microinjection in Zebrafish to Model Acute Kidney Injury
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Cited by 8 •
2016
Renal injuries incurred from nephrotoxins, which include drugs ranging from antibiotics to chemotherapeutics, can result in complex disorders whose pathogenesis remains incompletely understood. This protocol demonstrates how zebrafish can be used for disease modeling of these conditions, which can be applied to the identification of renoprotective measures.
11:03
A Method for Extracting Pigments from Squid Doryteuthis pealeii
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Cited by 4 •
2016
A protocol for the extraction of pigments from the nanostructured granules in squid Doryteuthis pealeii chromatophores is presented.
03:36
Depigmentation and Prestaining of Zebrafish Kidney: A Technique to Prepare Adult Zebrafish Kidney for Staining
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2023
In this video, we demonstrate the depigmentation of adult zebrafish kidney and its subsequent preparation for staining procedures. Post-staining, the adult zebrafish kidney can be used for studying kidney regeneration, phenotypic characterization of renal disease models, and nephron functionality.
FAQs
Stripe formation depends on coordinated contributions from several chromatophore types rather than melanophores alone. Melanophores produce melanin and create dark coloration, while xanthophores add yellow tones and iridophores contribute reflective coloration. Their differentiation, migration, survival, and spatial arrangement shape the final visible pattern, making interactions among pigment-cell populations central to zebrafish pigmentation research.
The neural crest supplies the embryonic origin for zebrafish chromatophores. During development, these cells differentiate into melanophores, xanthophores, and iridophores, then migrate into positions where they help establish stripes. Studying this sequence allows researchers to connect early cell behavior with later pigmentation outcomes and to investigate how developmental programs organize vertebrate pigment-cell populations.
Genetic pathways and cell-cell signaling regulate several linked events in pigmentation, including chromatophore survival, arrangement, and pigment production. Changes in these controls can therefore affect both the number or persistence of pigment cells and their organization into patterns. This makes zebrafish pigmentation useful for examining how gene activity and communication between cells produce visible developmental traits.
Externally developing embryos provide direct access to pigmentation processes while the pattern is forming, and their optical accessibility supports visual examination of chromatophore development. Researchers can follow differentiation, migration, arrangement, and interactions among pigment-cell types as embryos develop. This combination of external development and visibility helps connect cellular events with changes in the emerging pigmentation pattern.
The system links visible pigmentation traits with fundamental biological processes, including gene function, embryonic development, skin biology, and cell-cell signaling. Because pigment cells arise from the neural crest and organize into patterned structures, zebrafish can provide context for understanding vertebrate pigment-cell behavior. The model also supports investigations of regeneration, pigment disorders, and melanoma.
Zebrafish pigmentation research supports both developmental analysis and applied screening. Investigators can study how genetic pathways affect chromatophore formation and patterning, examine regeneration and pigment disorders, and use the optically accessible embryo system for chemical screening. These applications make pigmentation phenotypes useful readouts when exploring biological responses relevant to skin biology and melanoma research.