The Apple's Ancestral Home
In the Tian Shan mountains of southeastern Kazakhstan, near the city of Taldykorgan, grow the wild forests of Malus sieversii, the primary ancestor of every domesticated apple (Malus domestica). Genetic sequencing has confirmed that these forests are the origin point for the thousands of apple varieties known today. The history of the apple began here, with seeds carried west and east along the Silk Road by traders and animals, where they hybridized with local crabapples to become the modern fruit.
The genetic diversity within these Kazakhstani forests is immense; a single grove can contain more genetic variation than all commercial apple varieties combined. These trees, some growing to 60 feet and living for over 150 years, produce fruit that varies wildly in size, color, and flavor, from sweet to sour and even with notes of honey or licorice. This genetic library is a resource for agricultural scientists, holding traits for disease resistance and stress tolerance that have been bred out of commercial cultivars. However, these irreplaceable forests are under threat. An estimated 70% of the wild apple population has been lost in recent decades due to agricultural expansion, development, and overgrazing. The species is now classified as "Vulnerable" on the IUCN Red List of threatened species.