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7 results for “Red seaweed”
Patterns and drivers of species diversity in the Indo-Pacific red seaweed Portieria: phylogenetic data
<p>Alignments, trees and Biogeobears analyses related to the study: Leliaert F, Payo DA, Gurgel CFD, Schils T, Draisma SGA, Saunders GW, Kamiya M, Sherwood AR, Lin S-M, Huisman John M, Le Gall L, Anderson RJ, Bolton John J, Mattio L, Zubia M, Spokes T, Vieira C, Payri CE, Coppejans E, D'hondt S, Verbruggen H, De Clerck O. Patterns and drivers of species diversity in the Indo-Pacific red seaweed Portieria. Journal of Biogeography. 2018;45(10):2299-313. doi:10.1111/jbi.13410</p> <p>Abstract: Biogeographical processes underlying Indo-Pacific biodiversity patterns have been relatively well studied in marine shallow water invertebrates and fishes, but have been explored much less extensively in seaweeds, despite these organisms often displaying markedly different patterns. Using the marine red alga Portieria as a model, we aim to gain understanding of the evolutionary processes generating seaweed biogeographical patterns. Our results will be evaluated and compared with known patterns and processes in animals. Species diversity estimates were inferred using DNA-based species delimitation methods. Historical biogeographical patterns were inferred based on a six-gene time-calibrated phylogeny, distribution data of 802 specimens, and probabilistic modelling of geographic range evolution. The importance of geographic isolation for speciation was further evaluated by population genetic analyses at the intraspecific level. We delimited 92 candidate species, most with restricted distributions, suggesting low dispersal capacity. Highest species diversity was found in the Indo-Malay Archipelago (IMA). Our phylogeny indicates that Portieria originated during the late Cretaceous in the area that is now the Central Indo-Pacific. The biogeographical history of Portieria includes repeated dispersal events to peripheral regions, followed by long-term persistence and diversification of lineages within those regions, and limited dispersal back to the IMA. Our results suggest that the long geological history of the IMA played an important role in shaping Portieria diversity. High species richness in the IMA resulted from a combination of speciation at small spatial scales, possibly as a result of increased regional habitat diversity from the Eocene onwards, and species accumulation via dispersal and/or island integration through tectonic movement. Our results are consistent with the biodiversity feedback model, in which biodiversity hotspots act as both ‘centres of origin’ and ‘centres of accumulation’, and corroborate previous findings for invertebrates and fish that there is no single unifying model explaining the biological diversity within the IMA.</p>
Rumen_Microbial_Genomes_from_Cow_Fed_with_Red_Seaweed_Additives
<p>This dataset represents the 3180 non-redundant species-level rumen microbial genomes established through the integration of MAGs recovered from the rumen of cows that were fed with red seaweed or not, publicly available rumen MAGs and isolate genomes from Hungate collection. In order to match those old genome names with the new genome names used in the manuscript, please refer to supplementary table 3.</p>
Sexual selection in seaweed? Testing Bateman's principles in the red alga Gracilaria gracilis
<p>In anisogamous species, sexual selection is expected to be stronger in males. Bateman's principles state that the variance in (i) reproductive and (ii) mating success is greater for males and (iii) the relationship between reproductive success and mating success (the Bateman gradient) is also stronger for males than for females. Sexual selection, based on Bateman's principles, has been demonstrated in animals and some angiosperms, but never in seaweed. Here we focus on the oogamous haploid-diploid rhodophyte <em>Gracilaria gracilis</em> in which previous studies have shown evidence for non-random mating, suggesting the existence of male-male competition and female choice. We estimated mating and reproductive success using paternity analyses in a natural population where up to 92% of fertilizations occurred between partners of that population. The results show that the variance in mating success is significantly greater in males than in females and that the Bateman gradient is positive only in males. Distance to female partners also explains a minor part of the variance in male mating success. Although there is no evidence for sexual dimorphism, our study supports the hypothesis that sexual selection occurs in <em>G. gracilis</em>, likely on male traits, even if we cannot observe, qualify, or quantify them yet.</p>
Sexual selection in seaweed? Testing Bateman’s principles in the red alga Gracilaria gracilis
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Physicochemical characteristics and antioxidant activities of polysaccharides from red seaweeds
<p>Figure S1: <sup>1</sup>H NMR spectra of <em>Chondrus crispus </em>(CC), <em>Palmaria palmate </em>(PP)<em>, Ahnfeltiopsis devoniensis </em>(AD), <em>Sarcodiotheca gaudichaudii </em>(SG). <sup>1</sup>H-NMR spectroscopy showed the full spectrum: 0.0 to 9.0 ppm</p> <p>Figure S2: Spectroscopic analysis of <em>Chondrus crispus </em>extracts 2D HC-HSQC spectra A) CC1A, B) CC2B, C) AD3A, D) SG1A, E) PP2B;</p> <p>Figure S3:<em> </em>2D spectra (CC2A, CC2B) based on HSQCs with k- and i-standards carrageenans samples</p>
Data from: Intergametophytic selfing and microgeographic genetic structure shape populations of the intertidal red seaweed Chondrus crispus
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Dataset Exploring alternative red seaweed species for the production of agar-based hydrogels for food applications
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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.