Botanists have been busy trying to iron out the pesky needle drop from Christmas trees for years by crossing different species of fir. But now, scientists are getting involved—and the results could mean that your next tree looks or smells completely different. Not content with the rate of progress that horticulturists make—after all, it can take years to successfully cross and assess new breeds of tree—researchers have been performing genetic analysis of Christmas trees, reports New Scientist. Indeed, earlier this year the Norway spruce became the first conifer to have its entire genome sequenced, so now things are moving apace. Researchers from University of Missouri in Columbia have been investigating which genes are related to needle dropping, and spotted some links between Christmas trees and other plants that could mean your carpet never sees another needle.