A Vavilov center, also called a center of origin, is a place where a group of living things, whether grown by people or found in nature, first developed their unique traits. These centers were first discovered in 1924 by a scientist named Nikolai Vavilov. Vavilov believed that the center of origin for a species or group of species is the same as its center of diversity, which is the area where that species has the most variety of genetic traits. However, later scientists have disagreed with this idea.

Plants

Understanding where crop plants first grew is important for plant breeding. This helps scientists find wild relatives, similar plant species, and new genes, especially those that can help plants fight diseases. Knowing the origins of crops is key to preventing genetic erosion, which happens when plant genetic material is lost because local plant varieties disappear, natural areas like rainforests are destroyed, or cities expand. To protect plant genetic material, scientists use gene banks (which store seeds and parts of plants in cold storage) and work to keep natural habitats safe, especially in areas where plants originally came from.

Vavilov centers

A Vavilov center is a place in the world first identified by Nikolai Vavilov as where plants were first grown by people. For crops, Vavilov changed the number of centers he believed existed over time: three in 1924, five in 1926, six in 1929, seven in 1931, eight in 1935, and seven again in 1940.

Vavilov believed that plants were not domesticated randomly around the world but in specific regions where their growth began. These regions are also called centers of diversity.

Vavilov centers are areas where many wild relatives of crops can be found. These wild relatives are naturally related to the plants that humans now grow for food.