نتایج جستجو برای: autozygosity mapping

تعداد نتایج: 198456  

Journal: :Journal of medical genetics 2004
T Forshew C A Johnson

A utosomal recessive disorders are an important cause of childhood morbidity and mortality, and may reach significant frequencies in specific ethnic groups. The affected progeny of consanguineous parents provide an opportunity to undertake gene mapping and positionalcandidate gene analysis, since it is highly likely that the disease locus is identical-by-descent from a common ancestor. The stra...

Journal: :Investigative ophthalmology & visual science 2010
Dikla Bandah-Rozenfeld Karin W Littink Tamar Ben-Yosef Tim M Strom Itay Chowers Rob W J Collin Anneke I den Hollander L Ingeborgh van den Born Marijke N Zonneveld Saul Merin Eyal Banin Frans P M Cremers Dror Sharon

PURPOSE To characterize the role of EYS, a recently identified retinal disease gene, in families with inherited retinal degenerations in the Israeli and Palestinian populations. METHODS Clinical and molecular analyses included family history, ocular examination, full-field electroretinography (ERG), perimetry, autozygosity mapping, mutation detection, and estimation of mutation age. RESULTS...

2013
Eui-Soo Kim John B. Cole Heather Huson George R. Wiggans Curtis P. Van Tassell Brian A. Crooker George Liu Yang Da Tad S. Sonstegard

The intensive selection programs for milk made possible by mass artificial insemination increased the similarity among the genomes of North American (NA) Holsteins tremendously since the 1960s. This migration of elite alleles has caused certain regions of the genome to have runs of homozygosity (ROH) occasionally spanning millions of continuous base pairs at a specific locus. In this study, gen...

2013
Ahmed B. Alsalem Anason S. Halees Shamsa Anazi Shomoukh Alshamekh Fowzan S. Alkuraya

The use of autozygosity as a mapping tool in the search for autosomal recessive disease genes is well established. We hypothesized that autozygosity not only unmasks the recessiveness of disease causing variants, but can also reveal natural knockouts of genes with less obvious phenotypic consequences. To test this hypothesis, we exome sequenced 77 well phenotyped individuals born to first cousi...

Anophthalmia or microphthalmia (A/M) is a rare group of congenital/developmental ocular malformations, characterized by absent or small eye within the orbit affecting one or both eyes. It  has complex etiology with chromosomal, monogenic with high heterogeneity, and environmental causes. We performed genome SNP-array analysis followed by autozygosity mapping and sequencing in the members o...

Journal: :PLoS Genetics 2009
Michael A. Nalls Javier Simon-Sanchez J. Raphael Gibbs Coro Paisan-Ruiz Jose Tomas Bras Toshiko Tanaka Mar Matarin Sonja Scholz Charles Weitz Tamara B. Harris Luigi Ferrucci John Hardy Andrew B. Singleton

This research investigates the influence of demographic factors on human genetic sub-structure. In our discovery cohort, we show significant demographic trends for decreasing autozygosity associated with population variation in chronological age. Autozygosity, the genomic signature of consanguinity, is identifiable on a genome-wide level as extended tracts of homozygosity. We identified an aver...

Journal: :Behavior genetics 2013
Abdel Abdellaoui Jouke-Jan Hottenga Xiangjun Xiao Paul Scheet Erik A Ehli Gareth E Davies James J Hudziak Dirk J A Smit Meike Bartels Gonneke Willemsen Andrew Brooks Patrick F Sullivan Johannes H Smit Eco J de Geus Brenda W J H Penninx Dorret I Boomsma

The effects of inbreeding on the health of offspring can be studied by measuring genome-wide autozygosity as the proportion of the genome in runs of homozygosity (F roh) and relate F roh to outcomes such as psychiatric phenotypes. To successfully conduct these studies, the main patterns of variation for genome-wide autozygosity between and within populations should be well understood and accoun...

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