There was an association with Husky's for a while but that relationship also did not last - I suspect for the same reason the Speedbrain BMW relationship did not work.
As you likely know Husqvarna is now owned by KTM, and seemed to be coming into its own as a kind of prototype breed of KTM. Its rumored that KTM try out new tweaks and angles on the Husky rather than on their main brand. Its also seen flavors of KTM coming into it which is not a bad thing in itself either. For example there is a very sweet Husky 700 that has the frame of the KTM 450 RR/690 RR and the tanks of the new 450 rally replica as well. Its a thing of beauty and I want one! 
I think KTM understand also that Husky has always attracted independent thinkers, and their very loyal following (blazes on the forum or used to be is one) were super concerned it would just become the test brand for KTM. Instead they have allowed the brand to continue rather than die and be absorbed which is brilliant.
There was a little more than an association with BMW and Husqvarna; BMW bought Husqvarna in 2007 from Cagiva. As far as I recall they wanted to get into the offroad market.
Unfortunately, typical of Germans, instead of going the Husqvarna route they imposed their will and forced their shitty ideas onto the Italians who were still building the red Huskys in Italy. The G450X was sent to Italy and after being tinkered with was turned into the Husqvarna TE449 and TE511, which were both basically G450X's in different clothing, the 511 being a longer stroke version. They also sent the GS800 engine to Italy and after tinkering the Italians produced the Nuda 900. The same with the GS650 which became the TR650.
Speedbrain used the Husqvarna TE449 for their Dakar effort when their so called collaboration with BMW ended, however it was just the development of the same BMW G450X in different colours.
Husqvarna was not bought by KTM, it was basically given to the KTM boss, Stefan Pierer, for a token amount.
The original Italian Husqvarna factory has reopened under Chinese management and they are building some of the bikes that Husqvarna were building before BMW came along. BMW have refused to supply engines or components to these new Chinese owners and none of the BMW / Husqvarna's are being built anymore.