Sometimes very smart people write quite stupidly (re the author cited as 'Nanjing Agricultural University The Academy of Science').
The answer lies in the following passage at the source:
Notably, the study revealed how structural genome variation can both mask and mimic genetic signals, complicating trait discovery. By adjusting for these effects, the Kc model sets a precedent for future work in bananas and other crops with complex genomic architectures.My interpretation: Haphazard breeding in conjunction with understudied unique characteristics of the fruit which complicate plant breeding. There are probably many other crops which may be exposed as vulnerable under such studious analysis despite the lousy summation.“Chromosomal rearrangements have long clouded our view of banana genetics,” said Dr. Guillaume Martin, lead author and genomics researcher at CIRAD. “This study turns that obstacle into an opportunity. By tailoring GWAS methods to banana’s unique genomic structure, we’ve uncovered important trait loci that were previously invisible. This not only benefits banana breeding—it opens a methodological path for other crops facing similar challenges. Our work shows that, with the right tools, even highly complex genomes can yield practical insights for crop improvement.”
These QTL discoveries offer breeders concrete tools for improving banana varieties.
In this case, I've personally noticed a decline in banana quality across multiple varieties for a number of years, having settled on one brand of organic banana as the highest quality (Dole); some stores I will no longer patronize for the fruit due to the product offered. I don't believe that I'm alone.
I have noticed that as well. By limiting the number of different banana species available to the market they are essentially cutting their own commercial throats. A single disease could wipe out the entire industry in a very short time.............