Malus sieversii in harsh climates unsuitable for "M. pumila", mainly for increased cold tolerance. "Malus sieversii" has recently been cultivated by the United States Agricultural Research Service, in hopes of finding genetic information of value in the breeding of the modern apple plant. Some, but not all, of the resulting trees show unusual disease resistance. The variation in their response to disease on an individual basis is, itself, a sign of how much more genetically diverse they are than their domesticated descendants. Malus sieversii Malus sieversii is a wild apple native to the mountains of Central Asia in southern Kazakhstan. It has
Karl Malus curing McDowell, Malus also experimented on him using the Fly's DNA, which would later cause McDowell to transform into the villainous Hornet. Malus went to prison, but was released in order to "help" authorities against the threat of the Hornet. In actuality, he wanted to capture and study Spider-Woman. Malus slipped away, and made contact with the Hornet, whom he kept drugged and aggressive for his own purposes. Malus then contacted Jack Russell, a man cursed with lycanthropy, and told him he could help cure his transformations into a werewolf. Instead, he placed a control collar on Russell and sent