نتایج جستجو برای: rare populations
تعداد نتایج: 470522 فیلتر نتایج به سال:
The survival of natural populations may be greatly affected by environmental conditions that vary in space and time. We look at a population residing two locations (patches) coupled migration, which the local fluctuate report on findings. First, we find unlike rare events many other systems, here histories leading to extinction event are not dominated single path. develop appropriate framework,...
Neutral dynamics occur in evolution if all types are 'effectively equal' in their reproductive success, where the definition of 'effectively equal' depends on the population size and the details of mutations. Empirically observed neutral genetic evolution in extremely large clonal populations can only be explained under current models if selection is completely absent. Such models typically con...
Rare genetic variants contribute to complex disease risk; however, the abundance of rare variants in human populations remains unknown. We explored this spectrum of variation by sequencing 202 genes encoding drug targets in 14,002 individuals. We find rare variants are abundant (1 every 17 bases) and geographically localized, so that even with large sample sizes, rare variant catalogs will be l...
Isolated populations can empower the identification of rare variation associated with complex traits through next generation association studies, but the generalizability of such findings remains unknown. Here we genotype 1,267 individuals from a Greek population isolate on the Illumina HumanExome Beadchip, in search of functional coding variants associated with lipids traits. We find genome-wi...
There is rising interest in applying single-cell transcriptome analysis and other single-cell sequencing methods to resolve differences between cells. Pooled processing of thousands of single cells is now routinely practiced by introducing cell-specific DNA barcodes early in cell processing protocols . However, researchers must sequence a large number of cells to sample rare subpopulations ...
rare bleeding disorders (rbds) are a heterogeneous group of disorders including different types of coagulation factor deficiencies. the disorders are inherited in an autosomal recessive manner with different frequencies varying from 1:500000 to 1:2000000. patients affected with rbds are presented with a wide spectrum of clinical manifestations ranging from mild to life threatening bleeding diat...
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