Meta-analysis of genome-wide association studies for cattle stature identifies common genes that regulate body size in mammals

Nat Genet. 2018 Mar;50(3):362-367. doi: 10.1038/s41588-018-0056-5. Epub 2018 Feb 19.

Abstract

Stature is affected by many polymorphisms of small effect in humans 1 . In contrast, variation in dogs, even within breeds, has been suggested to be largely due to variants in a small number of genes2,3. Here we use data from cattle to compare the genetic architecture of stature to those in humans and dogs. We conducted a meta-analysis for stature using 58,265 cattle from 17 populations with 25.4 million imputed whole-genome sequence variants. Results showed that the genetic architecture of stature in cattle is similar to that in humans, as the lead variants in 163 significantly associated genomic regions (P < 5 × 10-8) explained at most 13.8% of the phenotypic variance. Most of these variants were noncoding, including variants that were also expression quantitative trait loci (eQTLs) and in ChIP-seq peaks. There was significant overlap in loci for stature with humans and dogs, suggesting that a set of common genes regulates body size in mammals.

Publication types

  • Letter
  • Meta-Analysis
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Body Height / genetics
  • Body Size / genetics*
  • Cattle / classification
  • Cattle / genetics*
  • Conserved Sequence*
  • Genetic Association Studies / veterinary
  • Genetic Variation
  • Genome-Wide Association Study* / statistics & numerical data
  • Genome-Wide Association Study* / veterinary
  • Humans
  • Mammals / genetics*
  • Phenotype
  • Polymorphism, Single Nucleotide
  • Quantitative Trait Loci / genetics