Autism spectrum disorder (ASD) is a highly heritable neurodevelopmental condition with an exceptionally complex and heterogeneous genetic architecture, encompassing both polygenic common variants and rare, high-impact variants. Over the past decade, large-scale sequencing studies in Europe and North America have identified hundreds of ASD risk genes and substantially advanced biological insight. However, the global distribution of ASD genomic research remains profoundly imbalanced, with most non-European ancestry populations severely underrepresented.
Radically different