Here are the most recent GWAS data for asthma – not identical peaks but quite similar
How it is going 2021
How it started: 1996-1998
third linkage scan (my thesis)
More than 2 decades ago we found hits on chromosome 2, 6, 9, 12 (missing chr17q21 where our marker coverage wasn’t probably good enough). It seems that this was the first identification of the IL33 region although IL33 could be described only 7 years later. Remarkably, this result was possible with just 415 individuals instead of 500,000 individuals nowadays (see also the asthma genetics timeline).