Revisiting the Population Genetics of Human Height.

Area of Science:

• Human Genetics
• Genomics
• Physiology

Background:

• Genetics and genomics advances offer insights into human physiology and disease susceptibility.
• Human height is approximately 80% genetically determined, with recent studies identifying variants affecting adult height by up to 2 cm.
• Large-scale population analyses have identified novel genetic variations linked to height.

Purpose of the Study:

• To evaluate the prevalence of known height-associated genetic variants within a large, diverse global dataset.
• To assess these variants in the genomes of over 213,000 individuals from the Genome Aggregation Database (GnomAD) consortium.

Main Methods:

• Analysis of genetic data from the Genome Aggregation Database (GnomAD).
• Assessment of allele frequencies for height-associated variants across diverse global populations.

Main Results:

• Most height-associated alleles are less prevalent in the GnomAD cohort compared to previous studies.
• Four out of five amino acid substitution variants with the largest impact on adult height were more frequent in the European population.

Conclusions:

• Larger-scale analyses incorporating diverse ancestries are essential for a comprehensive understanding of global human height genetics.
• Further studies are needed to elucidate the molecular mechanisms by which these variants affect growth plate biology.
• Understanding height genetics can inform investigations into polygenic human diseases.