A Vavilov center, also called a center of origin, is a place where certain plants or animals first developed their unique characteristics. In 1924, a scientist named Nikolai Vavilov identified these centers. He believed that the center of origin for a species is the same place where it has the most genetic variety. However, some later scientists disagreed with this idea.

Plants

Understanding where crop plants originally come from is essential for plant breeding. This helps scientists find wild relatives, similar plant species, and new genes, especially those that can help plants resist diseases. Knowing the origins of crops is important to prevent genetic erosion, which happens when plant genetic material is lost due to the disappearance of local plant varieties, destruction of habitats like rainforests, and the growth of cities. Plant genetic material is saved in gene banks, which store seeds and frozen plant parts, and by protecting natural habitats, especially in areas where crops first originated.

Vavilov centers

A Vavilov center is a region of the world first identified by Nikolai Vavilov as the starting place for the domestication of plants. For crop plants, Vavilov changed the number of centers 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 first grown for food in random places around the world, but in specific regions where domestication began. These regions are also called centers of diversity.

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