AI Article Synopsis

  • Runs of homozygosity (ROH) are long stretches of similar genetic variations found to be more frequent in unrelated people than expected.
  • A study analyzing ROH larger than 1.5 Mb in 5,974 participants from the Rotterdam Study aimed to link these genetic patterns to survival rates.
  • The findings indicated that neither ROH nor overall homozygosity percentages had any significant impact on survival into old age over a 12-year follow-up period.

Article Abstract

Runs of homozygosity (ROH) are extended tracts of adjacent homozygous single nucleotide polymorphisms (SNPs) that are more common in unrelated individuals than previously thought. It has been proposed that estimating ROH on a genome-wide level, by making use of the genome-wide single nucleotide polymorphism (SNP) data, will enable to indentify recessive variants underlying complex traits. Here, we examined ROH larger than 1.5 Mb individually and in combination for association with survival in 5974 participants of the Rotterdam Study. In addition, we assessed the role of overall homozygosity, expressed as a percentage of the autosomal genome that is in ROH longer than 1.5 Mb, on survival during a mean follow-up period of 12 years. None of these measures of homozygosity was associated with survival to old age.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3143169PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0022580PLOS

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