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The Sequence Alignment/Map format and SAMtools

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TLDR
SAMtools as discussed by the authors implements various utilities for post-processing alignments in the SAM format, such as indexing, variant caller and alignment viewer, and thus provides universal tools for processing read alignments.
Abstract
Summary: The Sequence Alignment/Map (SAM) format is a generic alignment format for storing read alignments against reference sequences, supporting short and long reads (up to 128 Mbp) produced by different sequencing platforms. It is flexible in style, compact in size, efficient in random access and is the format in which alignments from the 1000 Genomes Project are released. SAMtools implements various utilities for post-processing alignments in the SAM format, such as indexing, variant caller and alignment viewer, and thus provides universal tools for processing read alignments. Availability: http://samtools.sourceforge.net Contact: [email protected]

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Punctuated bursts in human male demography inferred from 1,244 worldwide Y-chromosome sequences

TL;DR: A calibrated phylogenetic tree is constructed on the basis of binary single-nucleotide variants and the more complex variants onto it, estimating the number of mutations for each class and shows bursts of extreme expansion in male numbers that have occurred independently among the five continental superpopulations examined.
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Haplotype and isoform specific expression estimation using multi-mapping RNA-seq reads

TL;DR: A new statistical method, MMSEQ, deconvolves the mapping of reads to multiple transcripts (isoforms or haplotype-specific isoforms) and can take into account non-uniform read generation and works with paired-end reads.
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ChIP-seq analysis reveals distinct H3K27me3 profiles that correlate with transcriptional activity

TL;DR: This work has used ChIP-seq to generate genome-wide maps of H3K27me3 enrichment, and has identified three enrichment profiles with distinct regulatory consequences, including an enrichment profile with a peak in the promoter of genes that is associated with active transcription.
Journal ArticleDOI

Epigenetic regulation of brain region-specific microglia clearance activity

TL;DR: It is shown that microglia clearance activity in the adult brain is regionally regulated and depends on the rate of neuronal attrition, which highlights a key role of epigenetic mechanisms in preventing microglian-induced neuronal alterations that are frequently associated with neurodegenerative and psychiatric diseases.
Journal ArticleDOI

Inferring expressed genes by whole-genome sequencing of plasma DNA

TL;DR: It is found that the plasma DNA read depth patterns from healthy donors reflected the expression signature of hematopoietic cells, and in patients with cancer having metastatic disease, expressed cancer driver genes in regions with somatic copy number gains with high accuracy were classified.
References
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Journal ArticleDOI

Ultrafast and memory-efficient alignment of short DNA sequences to the human genome

TL;DR: Bowtie extends previous Burrows-Wheeler techniques with a novel quality-aware backtracking algorithm that permits mismatches and can be used simultaneously to achieve even greater alignment speeds.
Journal ArticleDOI

The Human Genome Browser at UCSC

TL;DR: A mature web tool for rapid and reliable display of any requested portion of the genome at any scale, together with several dozen aligned annotation tracks, is provided at http://genome.ucsc.edu.
Journal ArticleDOI

Mapping short DNA sequencing reads and calling variants using mapping quality scores

TL;DR: This work describes the software MAQ, software that can build assemblies by mapping shotgun short reads to a reference genome, using quality scores to derive genotype calls of the consensus sequence of a diploid genome, e.g., from a human sample.
Journal ArticleDOI

Next-Generation DNA Sequencing Methods

TL;DR: An astounding potential exists for next-generation DNA sequencing technologies to bring enormous change in genetic and biological research and to enhance the authors' fundamental biological knowledge.
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