I had not heard about this project yet. In the video start Danielle Downey explains that this project supports a breeding project in Hawaji. I´m pretty sure it is Arista Foundation based project, which is lead by BartJan Fernhout.
Another article, varroa resistance work presented in a little wider angle: Weaver, Danka, BartJan Ferhout, Leonard Foster, Kaspar Bienefeld etc.
"Daniel Weaver, a bee breeder in Navasota, Texas, let the mite run wild in 1000 of his colonies. Just nine survived the first year, and from these he bred mite-resistant bees. "
"Kaspar Bienefeld, director of LIB. He hopes a genetic test will be available to breeders starting next year, at a cost of about $60 per test."
"Researchers predict that will change if the mite continues to develop resistance to amitraz, now the pesticide of choice in many countries. "If amitraz fails," Danka says, "the landscape changes overnight." Fernhout and other breeders want to be ready for the eventuality. They are close, they believe, to creating a world in which mite-resistance genes are widespread in honey bee populations, and beekeepers can set aside their failing pesticides. Fernhout, now 55, has a timeline in mind: "I just want to have resistant bees when I retire."