AUDACITY: A comprehensive approach for the detection and classification of Runs of Homozygosity in medical and population genomics

Runs of Homozygosity (RoHs) are popular among geneticists as the footprint of demographic processes, evolutionary forces and inbreeding in shaping our genome, and are known to confer risk of Mendelian and complex diseases. Notwithstanding growing interest in their study, there is unmet need for reliable and rapid methods for genomic analyses in large data sets. AUDACITY is a tool integrating novel RoH detection algorithm and autozygosity prediction score for prioritization of mutation-surrounding regions. It processes data in VCF file format, and outperforms existing methods in identifying RoHs of any size. Simulations and analysis of real exomes/genomes show its potential to foster future RoH studies in medical and population genomics.

[1]  J. Weber,et al.  Long homozygous chromosomal segments in reference families from the centre d'Etude du polymorphisme humain. , 1999, American journal of human genetics.

[2]  Graham R Taylor,et al.  Interactive visual analysis of SNP data for rapid autozygosity mapping in consanguineous families , 2006, Human mutation.

[3]  A. Starr,et al.  Mutations of Human NARS2, Encoding the Mitochondrial Asparaginyl-tRNA Synthetase, Cause Nonsyndromic Deafness and Leigh Syndrome , 2015, PLoS genetics.

[4]  A. Magi,et al.  Detection of Runs of Homozygosity from Whole Exome Sequencing Data: State of the Art and Perspectives for Clinical, Population and Epidemiological Studies , 2014, Human Heredity.

[5]  Peter K. Joshi,et al.  Runs of homozygosity: windows into population history and trait architecture , 2018, Nature Reviews Genetics.

[6]  Kenny Q. Ye,et al.  An integrated map of genetic variation from 1,092 human genomes , 2012, Nature.

[7]  Zachary A. Szpiech,et al.  Long runs of homozygosity are enriched for deleterious variation. , 2013, American journal of human genetics.

[8]  Todd Lencz,et al.  Runs of homozygosity reveal highly penetrant recessive loci in schizophrenia , 2007, Proceedings of the National Academy of Sciences.

[9]  F. Alkuraya The application of next-generation sequencing in the autozygosity mapping of human recessive diseases , 2013, Human Genetics.

[10]  Igor Rudan,et al.  Runs of homozygosity in European populations. , 2008, American journal of human genetics.

[11]  Mustaq Ahmed,et al.  Quantification of homozygosity in consanguineous individuals with autosomal recessive disease. , 2006, American journal of human genetics.

[12]  Yali Xue,et al.  BCFtools/RoH: a hidden Markov model approach for detecting autozygosity from next-generation sequencing data , 2016, Bioinform..

[13]  M. Nalls,et al.  Cooperative Genome-Wide Analysis Shows Increased Homozygosity in Early Onset Parkinson's Disease , 2012, PloS one.

[14]  Marie-Claude Babron,et al.  FSuite: exploiting inbreeding in dense SNP chip and exome data , 2014, Bioinform..

[15]  J. Casanova,et al.  Whole-exome sequencing to analyze population structure, parental inbreeding, and familial linkage , 2016, Proceedings of the National Academy of Sciences.

[16]  Anason S. Halees,et al.  Characterization of Greater Middle Eastern genetic variation for enhanced disease gene discovery , 2016, Nature Genetics.

[17]  Donna M. Martin,et al.  Recurrent De Novo and Biallelic Variation of ATAD3A, Encoding a Mitochondrial Membrane Protein, Results in Distinct Neurological Syndromes. , 2016, American journal of human genetics.

[18]  Peter Nürnberg,et al.  A Systematic Approach to Mapping Recessive Disease Genes in Individuals from Outbred Populations , 2009, PLoS genetics.

[19]  A. Bittles,et al.  Consanguinity, human evolution, and complex diseases , 2010, Proceedings of the National Academy of Sciences.

[20]  Richard M Myers,et al.  Genomic patterns of homozygosity in worldwide human populations. , 2012, American journal of human genetics.

[21]  Manuel A. R. Ferreira,et al.  PLINK: a tool set for whole-genome association and population-based linkage analyses. , 2007, American journal of human genetics.

[22]  Laura J. Scott,et al.  Directional dominance on stature and cognition in diverse human populations , 2015, Nature.

[23]  Gonçalo R. Abecasis,et al.  The variant call format and VCFtools , 2011, Bioinform..

[24]  E. Holme,et al.  Whole exome sequencing reveals mutations in NARS2 and PARS2, encoding the mitochondrial asparaginyl-tRNA synthetase and prolyl-tRNA synthetase, in patients with Alpers syndrome , 2014, Molecular genetics & genomic medicine.

[25]  Peter Nürnberg,et al.  HomozygosityMapper—an interactive approach to homozygosity mapping , 2009, Nucleic Acids Res..

[26]  Anason S. Halees,et al.  Autozygome Sequencing Expands the Horizon of Human Knockout Research and Provides Novel Insights into Human Phenotypic Variation , 2013, PLoS genetics.

[27]  F. Cucca,et al.  A novel founder MYO15A frameshift duplication is the major cause of genetic hearing loss in Oman , 2016, Journal of Human Genetics.

[28]  Harry Campbell,et al.  Genomic Runs of Homozygosity Record Population History and Consanguinity , 2010, PloS one.

[29]  M. Minczuk,et al.  Two Siblings with Homozygous Pathogenic Splice‐Site Variant in Mitochondrial Asparaginyl–tRNA Synthetase (NARS2) , 2015, Human mutation.

[30]  M. Nalls,et al.  Extended tracts of homozygosity identify novel candidate genes associated with late-onset Alzheimer’s disease , 2009, neurogenetics.

[31]  Luigi Ferrucci,et al.  Measures of Autozygosity in Decline: Globalization, Urbanization, and Its Implications for Medical Genetics , 2009, PLoS genetics.

[32]  N. Risch,et al.  Estimating genotype error rates from high-coverage next-generation sequence data , 2014, Genome research.

[33]  P. Sullivan,et al.  Runs of Homozygosity Implicate Autozygosity as a Schizophrenia Risk Factor , 2012, PLoS genetics.

[34]  Alberto Magi,et al.  H3M2: detection of runs of homozygosity from whole-exome sequencing data , 2014, Bioinform..

[35]  Mingyao Li,et al.  Runs of Homozygosity: Association with Coronary Artery Disease and Gene Expression in Monocytes and Macrophages. , 2015, American journal of human genetics.

[36]  Pak Chung Sham,et al.  Homozygosity Mapping on a Single Patient—Identification of Homozygous Regions of Recent Common Ancestry by Using Population Data , 2011, Human mutation.

[37]  Flavia Palombo,et al.  A Novel Null Homozygous Mutation Confirms CACNA2D2 as a Gene Mutated in Epileptic Encephalopathy , 2013, PloS one.