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Updated: Sep 8, 2025
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In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
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Genomic architecture and functional effects of potential human inversion supergenes
Elena Campoy1, Marta Puig1,2, Illya Yakymenko1
1Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Bellaterra (Barcelona), Spain.
Summary
Genomic inversions, rare in humans, can form supergenes influencing traits like brain function and disease risk. This study analyzes two key inversions, revealing their complex genetic underpinnings and phenotypic effects.
Area of Science:
- Human genetics
- Evolutionary biology
- Genomics
Background:
- Supergenes, crucial for adaptation in many species, are poorly understood in humans.
- Genomic inversions are primary mechanisms for supergene creation and stability.
- Two large human inversions represent potential supergene examples.
Purpose of the Study:
- To review and analyze data on two potential human supergenes.
- To understand the functional effects and genetic changes associated with these inversions.
- To identify candidate genes responsible for observed phenotypes.
Main Methods:
- Integrative analysis of recent genomic data.
- Examination of gene expression and nucleotide variation.
- Comparative analysis of divergent haplotypes.
Main Results:
- The 17q21.31 inversion (1.5 Mb) shows strong haplotype divergence with associations to brain traits, blood cell counts, lung function, sexual characteristics, and disease risk.
- Candidate genes CRHR1, KANLS1, and MAPT are implicated in the 17q21.31 inversion's effects.
- The 8p23.1 inversion lacks clear genetic differentiation but is linked to phenotypes and gene expression differences potentially related to orientation-specific haplotypes.
Conclusions:
- Genomic inversions are significant contributors to human genetic variation and adaptation.
- The 17q21.31 and 8p23.1 inversions are exceptional variants with substantial phenotypic consequences.
- Further research is needed to fully elucidate the role of these inversions in human health and evolution.
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