🧜🏼♀️ Center of Origin
Vavilov centers of Origin, Law of homologous series
- A center of origin (or center of diversity) is a geographical area where a group of organisms, either domesticated or wild, first developed its distinctive properties.
- They are also considered
centers of diversity
. - Centers of origin were first identified in 1924 by
N. Vavilov
. - Vavilov centers are regions where a high diversity of crop wild relatives can be found, representing the natural relatives of domesticated crop plants. Later in 1935 Vavilov divided the centers into
12
, giving the following list:- Chinese center
- Indian center
- Indo-Malayan center
- Central Asiatic center
- Persian center
- Mediterranean center
- Abyssinian center
- North American center
- South American center
- Central American center
- Chilean center
- Brazilian-Paraguayan center
Origin Places of Important Crops
Law of homologous series
- The concept of parallel variation also known as law of homologous series of variation was developed by
Vavilov (1951)
based on his study of crop diversity and centres of origin. - Law of homologous series states that a particular variation observed in a crop species is also expected to be available in its related species.
- For instance, if we get dwarf collections in one species of a crop, the same may be observed in another related species also.
- Vavilov used principle of homologous series of variation as a clue for discovering similar characters in related species.
- A center of origin (or center of diversity) is a geographical area where a group of organisms, either domesticated or wild, first developed its distinctive properties.
- They are also considered
centers of diversity
. - Centers of origin were first identified in 1924 by
N. Vavilov
. - Vavilov centers are regions where a high diversity of crop wild relatives can be found, representing the natural relatives of domesticated crop plants. Later in 1935 Vavilov divided the centers into
12
, giving the following list:- Chinese center
- Indian center
- Indo-Malayan center
- Central Asiatic center
- Persian center
- Mediterranean center
- Abyssinian center
- North American center
- South American center
- Central American center
- Chilean center
- Brazilian-Paraguayan center
Origin Places of Important Crops
Law of …
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