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1,598 results for “genetic diversity”
Data and code for: Species-specific effects of production practices on genetic diversity in plant reintroduction programs
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Metapopulation connectivity retains genetic diversity following historical bottleneck in a federally endangered seabird
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Data from: Latitudinal biodiversity gradients at three levels: linking species richness, population richness, and genetic diversity
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Genetic diversity and lifespan of transplanted colonies
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Data from: Preserving wild pears: Using genomic data to assess species boundaries, interspecific hybridization, and genetic diversity to inform conservation
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Archived data for: Balancing selection, genetic drift, and human mediated-introgression interplay to shape MHC (functional) diversity in Mediterranean brown trout
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Strong population genetic structure and cryptic diversity in the Florida bonneted bat (Eumops floridanus)
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Nuclear genetic diversity and structure of Anastrepha ludens wild populations evidenced by microsatellite markers
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Data from: Analysis of genotyping data reveals the unique genetic diversity represented by the breeds of sheep native to the United Kingdom
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Diversity and scale: Genetic architecture of 2,068 traits in the VA Million Veteran Program
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Data from: Genetic diversity and population structure of the Taigan dog breed
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Data from: Multiple introductions, polyploidy and mixed reproductive strategies are linked to genetic diversity and structure in the most widespread invasive plant across Southern Ocean archipelagos
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Obuasi case study data: Performance of neutral SNP barcodes to determine genetic diversity and structure of Plasmodium falciparum in Africa
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Considerable genetic diversity and structure despite narrow endemism and limited ecological specialization in the Hayden's ringlet, Coenonympha haydenii
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Genomic approaches to mitigating genetic diversity loss in declining populations
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Figure 3 in DNA Barcodes Reveal High Genetic Diversity in Philippine Fruit Bats
Figure 3. COI ML tree for Pteropodidae dataset using GTR+G+I model of substitution. Bootstrap supports 50% or greater are shown in the nodes. Clades with more than one sequence have been compressed. Labels indicate scientific name and number of sequences for that taxon in the clade. Scientific names in bold text indicate known Philippine endemic species. Colored shapes indicate the geographic origin of the sequences from Genbank and BOLD: purple – Southeast Asia, red – East Asia, blue – South Asia, white – Middle East, yellow – Africa, and black – Oceania. Red lines indicate sequences generated by this study. Scale indicates five nucleotide substitutions per 100 nucleotides.
Figure 2 in DNA Barcodes Reveal High Genetic Diversity in Philippine Fruit Bats
Figure 2. COI NJ tree for Pteropodidae dataset using K2P model of substitution. Bootstrap supports 50% or greater are shown in the nodes. Clades with more than one sequence have been compressed. Labels indicate scientific name and number of sequences for that taxon in the clade. Red lines indicate Philippine pteropodid sequences generated in this study. Scientific names in bold text indicate known Philippine endemic species. Colored shapes indicate the geographic origin of the sequences from Genbank and BOLD: purple – Southeast Asia, red – East Asia, blue – South Asia, white – Middle East, yellow – Africa, and black – Oceania. Scale indicates two nucleotide substitutions per 100 nucleotides.
Data from: Friends and Family: a software program for identification of unrelated individuals from molecular marker data. And from: Genetic diversity, relatedness and inbreeding of ranched and fragmented Cape buffalo populations in southern Africa
The identification of related and unrelated individuals from molecular marker data is often difficult, particularly when no pedigree information is available and the data set is large. High levels of relatedness or inbreeding can influence genotype frequencies and thus genetic marker evaluation, as well as the accurate inference of hidden genetic structure. Identification of related and unrelated individuals is also important in breeding programmes, to inform decisions about breeding pairs and translocations. We present Friends and Family, a Windows executable program with a graphical user interface that identifies unrelated individuals from a pairwise relatedness matrix or table generated in programs such as COANCESTRY and GenAlEx. Friends and Family outputs a list of samples that are all unrelated to each other, based on a user-defined relatedness cut-off value. This unrelated data set can be used in downstream analyses, such as marker evaluation or inference of genetic structure. The results can be compared to that of the full data set to determine the effect related individuals have on the analyses. We demonstrate one of the applications of the program: how the removal of related individuals altered the Hardy-Weinberg equilibrium test outcome for microsatellite markers in an empirical data set. Friends and Family can be obtained from https://github.com/DeondeJager/Friends-and-Family.
Data from: Temporal drop of genetic diversity in Bombus pauloensis
Bumblebees are economically important insects which perform essential pollination tasks in natural and managed ecosystems. Recent research studying Neotropical bumblebee species in Brazil showed a clear decrease in genetic diversity over time in Bombus pauloensis. A new temporal assessment of genetic diversity is needed to know whether this was a location specific result, or a more general phenomenon. This knowledge is essential to be able to prioritize conservation and management needs. Here, the genetic variability of B. pauloensis populations in Argentina was investigated over time using museum collection specimens from 1933 to 2016, and compared with reanalyzed data from Brazilian populations. Furthermore, specific time series were made for two Argentinean locations: Candelaria and La Plata, and compared with the time series of Porto Alegre (Brazil). All collected specimens were genotyped with 16 microsatellite loci to estimate genetic diversity parameters. Our results showed no drop in either allelic richness or expected heterozygosity over all Argentinean populations. However, a clear drop in genetic diversity was observed in two out of three location specific time series. This loss of diversity will have negative impacts on population survival, especially over longer periods of time. Furthermore, the use and release of mass-reared specimens of B. pauloensis, which may be inbred and specifically selected for certain commercial but non-adaptive traits, could further diminish the genetic pool. Thus, our result implies the urgent need for regional conservation policies of B. pauloensis in South Brazil and North Argentina.
Plant intraspecific functional trait variation is related to within-habitat heterogeneity and genetic diversity in Trifolium montanum L.
<p>Intraspecific trait variation (ITV), based on available genetic diversity, is one of the major means plant populations can respond to environmental variability. The study of functional trait variation and diversity has become popular in ecological research, e.g. as a proxy for plant performance influencing fitness. Up to now, it is unclear which aspects of intraspecific functional trait variation (iFDCV) can be attributed to the environment or genetics under natural conditions. Here, we examined 260 individuals from 13 locations of the rare (semi-)dry calcareous grassland species Trifolium montanum L. in terms of iFDCV, within-habitat heterogeneity, and genetic diversity. The iFDCV was assessed by measuring functional traits (releasing height, biomass, leaf area, specific leaf area, leaf dry matter content, Fv/Fm, performance index, stomatal pore surface, and stomatal pore area index). Abiotic within-habitat heterogeneity was derived from altitude, slope exposure, slope, leaf area index, soil depth, and further soil factors. Based on microsatellites, we calculated expected heterozygosity (He) because it best-explained, among other indices, iFDCV. We performed multiple linear regression models quantifying relationships among iFDCV, abiotic within-habitat heterogeneity and genetic diversity, and also between separate functional traits and abiotic within-habitat heterogeneity or genetic diversity. We found that abiotic within-habitat heterogeneity influenced iFDCV twice as strong compared to genetic diversity. Both aspects together explained 77% of variation in iFDCV (Radj² = 0.77, F2, 10 = 21.66, p < 0.001). The majority of functional traits (releasing height, biomass, specific leaf area, leaf dry matter content, Fv/Fm and performance index) were related to abiotic habitat conditions indicating responses to environmental heterogeneity. In contrast, morphology-related functional traits (releasing height, biomass and leaf area) were only related to genetics. Our results suggest that both within-habitat heterogeneity and genetic diversity affect iFDCV, and are thus crucial to consider when aiming to understand or predict changes of plant species performance under changing environmental conditions.</p>
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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.