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1,467 results for “Genetic structure”
Figure 4 in Unveiling the genetic diversity of bicolored-spined porcupines (Rodentia: Erethizontidae): a novel karyotype, population structuring, and evolutionary insights
Figure 4. Topology of median joining on top of the map showing the current separation of C. bicolor populations by the rivers Ucayali and Beni/Madre de Dios. Circles are haplotypes and its dimension are proportional to the number of shared sequences. Numbers in the segments connecting the circles are nucleotide substitutions and black circle is the median vector. For haplotypes localities see figure 2. BOL = Bolivia, BRA = Brazil, PER = Peru.
Figure 3 in Unveiling the genetic diversity of bicolored-spined porcupines (Rodentia: Erethizontidae): a novel karyotype, population structuring, and evolutionary insights
Figure 3. Maximum likelihood phylogenetic tree. Symbols near nodes represent Bootstrap values: black circles (90-100%), white circles (80-89%), white squares (70-79%), black square (66%). BOL = Bolivia, BRA = Brazil, COL = Colombia, ECU = Ecuador, GUF = French Guiana, MEX = Mexico, PAR = Paraguay, PER = Peru.
Figure 2 in Unveiling the genetic diversity of bicolored-spined porcupines (Rodentia: Erethizontidae): a novel karyotype, population structuring, and evolutionary insights
Figure 2. Conventional stained karyotypes of Coendou (Sphiggurus) bicolor male LBCE21287 (above) and female LBCE21289 (below) from Brazilian Acre state with 2n = 52 and FN = 82. The X and Y are sexual chromosomes.
Figure 6 in Infraspecific genetic variation and population structure of Salvia nemorosa L. (Lamiaceae) in Iran
Figure 6. UPGMA tree of the studied populations based on Nei's genetic distance.
Figure 5 in Infraspecific genetic variation and population structure of Salvia nemorosa L. (Lamiaceae) in Iran
Figure 5. STRUCTURE plot of the studied populations of S. nemorosa based on k = 7 of ISSR results.
Data and appendices: Genetic structure of the European white elm (Ulmus laevis Pall., Ulmaceae) in Switzerland
<p>This dataset is linked to the following article published in Annals of Forest Science: Dermelj, L., Fragnière, Y., Jacob, G. et al. Genetic structure of the European white elm (Ulmus laevis Pall., Ulmaceae) in Switzerland. Annals of Forest Science 81, 28 (2024). <a href="https://urldefense.com/v3/__https://doi.org/10.1186/s13595-024-01245-8__;!!Dc8iu7o!yKfGPXx0qHn-nE984OtuCUPPKaVjkUX03CZMhD3un5K_DjKgv8OrJB1nXYJdoWBTDKXDNA196eOKhBbjLjqqPgOm$" target="_blank" rel="noopener noreferrer">https://urldefense.com/v3/__https://doi.org/10.1186/s13595-024-01245-8__;!!Dc8iu7o!yKfGPXx0qHn-nE984OtuCUPPKaVjkUX03CZMhD3un5K_DjKgv8OrJB1nXYJdoWBTDKXDNA196eOKhBbjLjqqPgOm$</a></p> <p> </p> <pre> </pre>
Figure 3 in Genetic variability and population structure of some Iranian Salvia limbata C. A. Mey. populations
Figure 3. Results of AMOVA analysis among and within the studied populations.
Fig. 5 in Phylogeography and Genetic Structure of the Bush Cricket (Orthoptera, Tettigoniidae) in Southern China.
Fig. 5. Divergence time estimation based on combined mitochondrial data of D. fissa.
Fig. 1 in Phylogeography and Genetic Structure of the Bush Cricket (Orthoptera, Tettigoniidae) in Southern China.
Fig. 1. The geographic distribution collection points.
Fig. 8 in Phylogeography and Genetic Structure of the Bush Cricket (Orthoptera, Tettigoniidae) in Southern China.
Fig. 8. The result of the BBM with RASP
Fig. 2. A in A preliminary study of genetic structure and relatedness analysis of Nutria (Myocastor coypus) in Upo Wetland
Fig. 2. A bar plot representing the estimated membership coefficients of nutria individuals (K=2).
Fig. 1 in A preliminary study of genetic structure and relatedness analysis of Nutria (Myocastor coypus) in Upo Wetland
Fig. 1. Maps denoting Upo Wetland where nutrias were collected.
Anthropogenic pressures drive population genetic structuring across a Critically Endangered lemur species range
<p>Includes initial input landscape surfaces (.acs) and final resistance surfaces (.out) generated during the current study.</p>
Figure 1 in Effects of nanoparticles treatments and salinity stress on the genetic structure and physiological characteristics of Lavandula angustifolia Mill.
Figure 1. The XRD pattern for the used Fe O nanoparticles.
Figure 2 in Effects of nanoparticles treatments and salinity stress on the genetic structure and physiological characteristics of Lavandula angustifolia Mill.
Figure 2. The XRD pattern for the used ZnO nanoparticles.
Seasonality and inter-annual stability in the population genetic structure of Batrachospermum gelatinosum (Rhodophyta)
<p>Data used for Shainker-Connelly et al. in biorxiv: https://www.biorxiv.org/content/10.1101/2024.09.20.614195v1</p>
RAD-seq generated single nucleotide polymorphisms resolve patterns of genetic diversity and structure of the freshwater mussel Ptychobranchus fasciolaris in glaciated and unglaciated regions of North America
<p>Included are the initial unfiltered SNP output from the STACKS pipeline, and the final filtered SNP dataset in VCF format used to do analysis in the manuscript titled "<span>RAD-seq generated single nucleotide polymorphisms resolve patterns of genetic diversity and structure of the freshwater mussel <em>Ptychobranchus fasciolaris </em>in glaciated and unglaciated regions of North America" which was submitted to <em>Hydrobiologia </em>in September 2024.</span></p>
Data from: Genomic signatures of paleodrainages in a freshwater fish along the southeastern coast of Brazil: genetic structure reflects past riverine properties
Past shifts in connectivity in riverine environments (for example, sea-level changes) and the properties of current drainages can act as drivers of genetic structure and demographic processes in riverine population of fishes. However, it is unclear whether the same river properties that structure variation on recent timescales will also leave similar genomic signatures that reflect paleodrainage properties. By characterizing genetic structure in a freshwater fish species (Hollandichthys multifasciatus) from a system of basins along the Atlantic coast of Brazil we test for the effects of paleodrainages caused by sea-level changes during the Pleistocene. Given that the paleodrainage properties differ along the Brazilian coast, we also evaluate whether estimated genetic diversity within paleodrainages can be explained by past riverine properties (i.e., area and number of rivers in a paleodrainage). Our results demonstrate that genetic structure between populations is not just highly concordant with paleodrainages, but that differences in the genetic diversity among paleodrainages correspond to the joint effect of differences in the area encompassed by, and the number of rivers, within a paleodrainage. Our findings extend the influence of current riverine properties on genetic diversity to those associated with past paleodrainage properties. We discuss how these findings may explain the inconsistent support for paleodrainages in structuring divergence from different global regions and the importance of taking into account past conditions for understanding the high species diversity of freshwater fish that we currently observe in the world, and especially in the Neotropics.
Microsatellite-based analysis of genetic structure and gene flow of Mythimna separata (Walker) (Lepidoptera: Noctuidae) in China
<p>The oriental armyworm, <i>Mythimna separata</i>, is a serious agricultural pest in China. Seasonal and roundtrip migration has recently led to sudden, localized outbreaks and crop losses. To evaluate genetic differentiation between populations in eastern and western China and elucidate gene flow, the genetic structure of 20 natural populations from nine provinces was examined using seven microsatellite markers. The results indicated high genetic diversity. However, little to moderate (0 < <i>F</i><sub>ST</sub> < 0.15) genetic differentiation was detected, and there was no correlation between genetic distance and geographical distance. Bayesian clustering analysis identified three groups whereas discriminant analysis of principal components identified ten clusters that were considered as two clear‐cut clusters and one admixed group. Gene flow occurred frequently in most population pairs, and an asymmetrical migration rate was detected in several pairwise population comparisons. The bottleneck test showed that few populations had experienced recent bottlenecks. Correspondingly, large‐scale and long‐distance migration of <i>M. separata</i> has caused low genetic differentiation and frequent gene exchange. Our findings are important for studying genetic evolution and help to improve predictions of <i>M. separata</i> outbreaks in China.</p>
Data from: The socially parasitic ant Polyergus mexicanus has host-associated genetic population structure and related neighboring nests
<p>The genetic structure of populations can be both a cause and a consequence of ecological interactions. For parasites, genetic structure may be a consequence of preferences for host species or of mating behavior. Conversely, genetic structure can determine where conspecific interactions among parasites lay on a spectrum from cooperation to conflict. We used microsatellite loci to characterize the genetic structure of a population of the socially parasitic dulotic (aka "slave-making") ant (<i>Polyergus mexicanus</i>), which is known for its host-specificity and conspecific aggression. First, we assessed whether the pattern of host species use by the parasite has influenced parasite population structure. We found that host species use was correlated with subpopulation structure, but this correlation was imperfect: some subpopulations used one host species exclusively, while others used several. Second, we examined the viscosity of the parasite population by measuring the relatedness of pairs of neighboring parasitic ant nests at varying distances from each other. Although natural history observations of local dispersal by queens suggested the potential for viscosity, there was no strong correlation between relatedness and distance between nests. However, 35% of nests had a closely related neighboring nest, indicating that kinship could potentially affect the nature of some interactions between nests of this social parasite. Our findings confirm that ecological forces like host species selection can shape the genetic structure of parasite populations, and that such genetic structure has the potential to influence parasite-parasite interactions in social parasites via inclusive fitness.</p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.