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779 results for “pigmentation”
Data from: Distinct genetic architectures underlie divergent thorax, leg, and wing pigmentation between Drosophila elegans and D. gunungcola
<p>Understanding the genetic basis of species differences is a major goal in evolutionary biology. Pigmentation divergence between <i>Drosophila </i>species often involves genetic changes in pigmentation candidate genes that pattern the body and wings, but it remains unclear how these changes affect pigmentation evolution in multiple body parts between the same diverging species. <i>Drosophila elegans </i>and <i>D. gunungcola</i> show pigmentation differences in the thorax, legs, and wings, with <i>D. elegans </i>exhibiting male-specific wing spots and <i>D. gunungcola </i>lacking wing spots with intensely dark thoraces and legs. Here, we performed QTL mapping to identify the genetic architecture of these differences. We find a large effect QTL on the X chromosome for all three body parts. QTL on Muller Element E were found for thorax pigmentation in both backcrosses but were only marginally significant in one backcross for the legs and wings. Consistent with this observation, we isolated the effects of the Muller Element E QTL by introgressing <i>D. gunungcola </i>alleles into a <i>D. elegans </i>genetic background and found that <i>D. gunungcola </i>alleles linked near the pigmentation candidate gene <i>ebony </i>caused intense darkening of the thorax, minimal darkening of legs, and minimal shrinking of wing spots. <i>D. elegans</i> <i>ebony</i> mutants showed changes in pigmentation consistent with Ebony having different effects on pigmentation in different tissues. Our results suggest that multiple genes have evolved differential effects on pigmentation levels in different body regions.</p>
BiG RAPA Water Column HPLC Pigments from R/V Melville MV1015 in the South Pacific from Arica, Chile to Easter Island from November to December 2010 (C-MORE project)
<p>“The South East Pacific (SEP) is characterized by very high nutrient concentrations in the waters adjacent to the Chilean coast, but very low nutrient concentrations (oligotrophic) in the mid- South Pacific Subtropical Gyre (SPSG), near Easter Island. The steep gradient in nutrient concentrations across the region affects the level of marine production, the composition of the microbial community, and the operation of major biogeochemical cycles in ways that are not fully understood. Despite the remarkable diversity of trophic conditions, strong gradients and even some unique singularities, the SEP is still the most sparsely sampled oceanic region of the global ocean from hydrodynamic, biological and biogeochemical points of view. The SPSG is also the most oligotrophic of all sub-tropical gyres. Previous expeditions and remote sensing studies have describes the nutrient and chlorophyll field, but there have been few simultaneous measurements of chemical properties with microbial community structure and function. This expedition is designed to investigate the impact of elemental nutrient (nitrogen, phosphorus, iron, silicon, carbon) ratios on marine productivity and microbial community composition.” This BiG RAPA dataset contains water column HPLC pigment data from samples collected via Niskin bottles attached to a CTD. Time is in GMT.</p> <p><br> This description has been reproduced using the following source:</p> <p><br> http://dmoserv3.bco-dmo.org/jg/info/BCO-DMO/CMORE/bigrapa/pigments_watcol%7Bdir=dmoserv3.bco-dmo.org:80/jg/dir,data=dmoserv3.bco-dmo.org:80/jg/serv/BCO-DMO/CMORE/bigrapa/pigments_watcol.html1%7D?</p>
The mechanistic origin of amber pigmentation of Perithemis tenera (Say, 1840) wings (Anisoptera: Libellulidae)
<p>Animal coloration serves various signaling and non-signaling functions. In damselflies and dragonflies (Odonata), such colors may not only play photoprotective and/or thermoregulatory roles but also serve as visual signals during courtship and/or agonistic interactions. Here, we analyzed the coloration of <em>Perithemis tenera</em> wings, a potential secondary sexual ornament, applying spectrophotometry and visual modeling to gain a deeper understanding of their color mechanisms and functions. The amber coloration of the <em>P. tenera</em> wings results from the interaction of light with both the melanized chitin matrix and possibly ommochrome pigments. This coloration stands out significantly against the dry Brazilian savannah, the natural habitat of <em>P. tenera</em>, making it easily detectable by conspecifics. Additionally, by fitting the absorbance curve of <em>P. tenera</em> wings to the extinction coefficient of different melanins, we deduced that pheomelanin is likely the pigment embedded in the wing’s chitinous matrix. If the presence of pheomelanin is confirmed, a pigment predominantly found in vertebrates and known to be associated with an increased risk of melanoma and Parkinson’s disease, <em>P. tenera</em> could become a valuable species for studying these diseases and their potential links to pigmentation, as well as its roles in insects’ immune systems and cuticle sclerotization.</p>
Bermuda Atlantic Time-Series Study (BATS) Pigment Data
<p>This dataset is published on Zenodo by the Simons CMAP curators for long-term care. All credits go to the data producers at the Bermuda Atlantic Time-series Study (BATS): https://bats.bios.asu.edu/bats-data/ </p><p>The BATS (Bermuda Atlantic Time-series Study) Pigment dataset is time-series spanning from 1988 to 2022. The dataset contains the 21 separate in-situ pigment measurements along with sampling depth and the BATS Cruise ID.</p><p>This description has been reproduced using https://www.dropbox.com/s/8kk760972lpj5sa/bats_pigments.txt?dl=0</p>
Macular Pigment and Glare Disability
ClinicalTrials.gov study NCT00909090. IPD Sharing: NO. Countries: 1. Publications: 2.
Cirrus HD-OCT Measurement of Area of Increased Light Penetration Under the Retinal Pigment Epithelium (RPE)
ClinicalTrials.gov study NCT01272076. IPD Sharing: Not stated. Countries: 1. Publications: 6.
The Effects of Xalatan, Travatan and Lumigan on Skin Pigmentation Near the Eye
ClinicalTrials.gov study NCT00705757. IPD Sharing: Not stated. Countries: 1. Publications: 29.
Pre-Treatment of Highly Suspicious Pigmented Skin Lesions With Interleukin-2
ClinicalTrials.gov study NCT03233828. IPD Sharing: NO. Countries: 1. Publications: 6.
Evaluation of Pigmented Skin Lesions With MelaFind(R) System
ClinicalTrials.gov study NCT00434057. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Data from: Loss of pigments in females is associated with sexual dichromatism in an ornamental trait
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Umbrella review data of colour-associated bioactive pigments found in fruit and vegetables, compared to placebo or low intakes, on human health outcomes relevant to public health
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Data from: Transcriptomic analysis of skin pigmentation variation in the Virginia opossum (Didelphis virginiana).
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Data from: Population genomics reveals a candidate gene involved in bumble bee pigmentation
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Comparative transcriptomics reveals the molecular genetic basis of pigmentation loss in Sinocyclocheilus cavefishes
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Heat stress responses of the kelp Laminaria digitata (Phaeophyceae) across Northeast Atlantic populations: growth, biochemistry, chlorophyll fluorescence, pigments
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Data from: Phagocytosed photoreceptor outer segment particles within the retinal pigment epithelium show diurnal rhythmicity and variation between cone subtypes in larval zebrafish
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The impact of life stage and pigment source on the evolution of novel warning signal traits
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Melanic pigmentation and light preference within and between two Drosophila species
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Dietary constraints and costs of melanin pigmentation plasticity
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Data from: Testosterone activates sexual dimorphism including male-typical carotenoid but not melanin plumage pigmentation in a female bird
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.