Genomic analysis identifies candidate supergene architecture for host-feeding behavior in wild Aedes aegypti dengue vector mosquitoes.

Genomic analysis reveals a potential supergene architecture associated with human host-feeding behavior in Aedes aegypti mosquitoes, involving a specific inversion on chromosome 2.

• Why it matters: Understanding the genetic basis of host preference in mosquito vectors is crucial for controlling disease transmission, yet the molecular mechanisms remain largely unexplored.
• What they did: The study conducted a genome-wide association study and structural variant analysis on 21 field-collected females, identifying 11 SNPs and a chromosome 2 inversion containing chemosensory genes linked to host-feeding behavior.
• The result: Findings suggest a supergene model that may drive behavioral divergence, providing a genomic framework for future functional validation and improved vector control strategies.