“Meta-Analysis of Genome-Wide Association Studies for Cattle Stature Identifies Common Genes That Regulate Body Size in Mammals”, 2018-02-19 ():
Stature [height] is affected by many polymorphisms of small effect in humans. In contrast, variation in dogs, even within breeds, has been suggested to be largely due to variants in a small number of genes.
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 statistically-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 statistically-significant overlap in loci for stature with humans and dogs, suggesting that a set of common genes regulates body size in mammals.