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81 results for “Genealogy”
Data from: Benefits of living closer to kin vary by genealogical relationship in a territorial mammal
<p>While cooperative interactions among kin are a key building block in the societies of group-living species, their importance for species with more variable social environments is unclear. North American red squirrels (<em>Tamiasciurus</em> <em>hudsonicus</em>) defend individual territories in dynamic neighbourhoods and are known to benefit from living among familiar conspecifics, but not relatives. However, kin-directed behaviours may be restricted to specific genealogical relationships or strongly mediated by geographic distance, masking their influence at broader scales. Using distance between territories as a proxy for the ability of individuals to interact, we estimated the influence of primary kin (parents, offspring, siblings) on the annual survival and reproductive success of red squirrels. This approach revealed associations between fitness and access to kin, but only for certain genealogical relationships and fitness components. For example, females had enhanced annual survival when living closer to their daughters, though the reverse was not true. Most surprising was the finding that males had higher annual reproductive success when living closer to their father, suggesting possible recognition and cooperation among fathers and sons. Together, these findings point to unexpected nuance in the fitness consequences of kinship dynamics for a species that is territorial and largely solitary.</p>
Data from: Attacks on genetic privacy via uploads to genealogical databases
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Data from: Differential introgression causes genealogical discordance in host races of Acrocercops transecta (Insecta: Lepidoptera)
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Data from: Genealogy and palaeodrainage basins in Yunnan Province: phylogeography of the Yunnan spiny frog, Nanorana yunnanensis (Dicroglossidae)
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Data from: Phylogenomics provides new insight into evolutionary relationships and genealogical discordance in the reef-building coral genus Acropora
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The genealogical divergence index across a speciation continuum in Hercules beetles
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Data from: Benefits of living closer to kin vary by genealogical relationship in a territorial mammal
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IO Islamic 3201. Kitâb dar bayân-i-ansâb-i-Ṭâlibîn, A detailed genealogical account of the descendants of Abû Ṭâlib
<p>IO Islamic 3201. Kitâb dar bayân-i-ansâb-i-Ṭâlibîn, A detailed genealogical account of the descendants of Abû Ṭâlib</p>
According to this the mutual affinities of the species of the simpleX group might be expressed as follows t (the Ethiopian species are marked with an asterisk):— each other at base; in 4 p2 is half in row. To this latter I find no parallel in any specimen of ferrum-equinum (all races) I have seen, and in 4 skulls only, out of 33, there is a more or less distinct remnant of the interspace between the canine and p4. Of _R7z. deckeni I have seen one skull only; the dentition is as in many specimens of Ph. augur: c and p4 separated, p2 external. f I give the diagram the form of a genealogical tree, only because it is convenient to in On some Bats of the Genus Rhinolophus, with Remarks on their Mutual Affinities, and Descriptions of Twenty-six new Forms.
According to this the mutual affinities of the species of the simpleX group might be expressed as follows t (the Ethiopian species are marked with an asterisk):— each other at base; in 4 p2 is half in row. To this latter I find no parallel in any specimen of ferrum-equinum (all races) I have seen, and in 4 skulls only, out of 33, there is a more or less distinct remnant of the interspace between the canine and p4. Of _R7z. deckeni I have seen one skull only; the dentition is as in many specimens of Ph. augur: c and p4 separated, p2 external. f I give the diagram the form of a genealogical tree, only because it is convenient to
Data from: Testing hypotheses for genealogical discordance in a rainforest lizard
Genealogical discordance, or when different genes tell distinct stories although they evolved under a shared history, often emerges from either coalescent stochasticity or introgression. In this study, we present a strong case of mito-nuclear genealogical discordance in the Australian rainforest lizard species complex of Saproscincus basiliscus and S. lewisi. One of the lineages that comprises this complex, the Southern S. basiliscus lineage, is deeply divergent at the mito- chondrial genome but shows markedly less divergence at the nuclear genome. By placing our results in a comparative context and reconstructing the lineages' demography via multi-locus and coalescent-based Approximate Bayesian Computation (ABC) methods, we test hypotheses for how coalescent variance and introgression contribute to this pattern. These analyses suggest that the observed genealogical discordance likely results from introgression. Further, to generate such strong discordance, introgression probably acted in concert with other factors promoting asymmetric gene flow between the mitochondrial and nuclear genomes, such as selection or sex-biased dispersal. This study offers a framework for testing sources of genealogical discordance and suggests that historical introgression can be an important force in shaping the genetic diversity of species and their populations.
FIGURE 7 in Morphological variation and genealogical discordance in Caatinga sand lizards Calyptommatus Rodrigues 1991 (Squamata: Gymnophthalmidae) with the description of a new species
FIGURE 7. Tracks of Calyptommatus frontalis sp. nov. on the sandy soil in Buritirama, Bahia.
Data from: RADseq underestimates diversity and introduces genealogical biases due to nonrandom haplotype sampling
Reduced representation genome-sequencing approaches based on restriction digestion are enabling large-scale marker generation and facilitating genomic studies in a wide range of model and nonmodel systems. However, sampling chromosomes based on restriction digestion may introduce a bias in allele frequency estimation due to polymorphisms in restriction sites. To explore the effects of this nonrandom sampling and its sensitivity to different evolutionary parameters, we developed a coalescent-simulation framework to mimic the biased recovery of chromosomes in restriction-based short-read sequencing experiments (RADseq). We analysed simulated DNA sequence datasets and compared known values from simulations with those that would be estimated using a RADseq approach from the same samples. We compare these 'true' and 'estimated' values of commonly used summary statistics, π, θw, Tajima's D and FST. We show that loci with missing haplotypes have estimated summary statistic values that can deviate dramatically from true values and are also enriched for particular genealogical histories. These biases are sensitive to nonequilibrium demography, such as bottlenecks and population expansion. In silico digests with 102 completely sequenced Drosophila melanogaster genomes yielded results similar to our findings from coalescent simulations. Though the potential of RADseq for marker discovery and trait mapping in nonmodel systems remains undisputed, our results urge caution when applying this technique to make population genetic inferences.
Data from: Trajectory energy minimisation for cell growth tracking and genealogy analysis
Cell growth experiments with a microfluidic device produce large-scale time-lapse image data, which contain important information on cell growth and patterns in their genealogy. To extract such information, we propose a scheme to segment and track bacterial cells automatically. In contrast with most published approaches, which often split segmentation and tracking into two independent procedures, we focus on designing an algorithm that describes cell properties evolving between consecutive frames by feeding segmentation and tracking results from one frame to the next one. The cell boundaries are extracted by minimizing the distance regularized level set evolution (DRLSE) model. Each individual cell was identified and tracked by identifying cell septum and membrane as well as developing a trajectory energy minimization function along time-lapse series. Experiments show that by applying this scheme, cell growth and division can be measured automatically. The results show the efficiency of the approach when testing on different datasets while comparing with other existing algorithms. The proposed approach demonstrates great potential for large-scale bacterial cell growth analysis.
FIGURE 4 in A multiple gene genealogy reveals phylogenetic placement of Rhopalostroma lekae
FIGURE 4. Stromatal HPLC-UV profiles of major metabolites in Rhopalostroma lekae.
Data from: Trajectory energy minimisation for cell growth tracking and genealogy analysis
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Data from: Inferring fitness landscapes and selection on phenotypic states from single-cell genealogical data
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Data from: Genealogical lineage sorting leads to significant, but incorrect Bayesian multilocus inference of population structure
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Data from: Genealogical working distributions for Bayesian model testing with phylogenetic uncertainty
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Data from: RADseq underestimates diversity and introduces genealogical biases due to nonrandom haplotype sampling
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Data from: Testing hypotheses for genealogical discordance in a rainforest lizard
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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.