Malus sieversii modern apple cultivars. Unlike domesticated varieties its leaves go red in autumn: 62.2% of the trees in the wild do this compared to only 2.8% of the regular apple plant or the 2,170 English cultivated varieties. The species is now considered vulnerable to extinction. "Malus sieversii" has previously been identified as the main contributor to the genome of the cultivated apple ("Malus pumila"), on the basis of morphological, molecular, and historical evidence. A DNA analysis in 2010 confirmed "M. sieversii" as the progenitor of the cultivated apple. A third species that has been thought to have made contributions to the
Bonus-malus also Bonus/Malus value (%), stating how many years the driver used the car without any accident or another event relevant to the insurance. It means, that the bonus/malus is assigned to the insured person and also to family members (e.g. wife), which is allowed to drive the car. The bonus can be transferred between insurance companies. In France, cars are taxed (malus) or credited (bonus) if their carbon emissions are above or below certain targets. The limits (can) change every year. The environmental tax is also applied as a malus, to all vehicles registered after 1 January 2008, affecting all