Vavilov center

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Center of origin
)

Vavilov's 1924 scheme suggested that plants were domesticated in China, Hindustan, Central Asia, Asia Minor, Mediterranean, Abyssinia, Central and South America

A Vavilov center or center of origin is a geographical area where a group of organisms, either domesticated or wild, first developed its distinctive properties.[1] They are also considered centers of diversity. Centers of origin were first identified in 1924 by Nikolai Vavilov.

Plants

Locating the origin of crop plants is basic to

genes
, which may provide resistance to diseases). Knowledge of the origins of crop plants is important in order to avoid
gene banks
(largely seed collections but now frozen stem sections) and preservation of natural habitats (especially in centers of origin).

Vavilov centers

Neolithic revolution and List of food origins

A Vavilov Center (of Diversity) is a region of the world first indicated by Nikolai Vavilov to be an original center for the domestication of plants.[3] For crop plants, Nikolai Vavilov identified differing numbers of centers: three in 1924, five in 1926, six in 1929, seven in 1931, eight in 1935 and reduced to seven again in 1940.[4][5]

Vavilov argued that plants were not domesticated somewhere in the world at random, but that there were regions where domestication started. The center of origin is also considered the center of diversity.

Vavilov's scheme as updated by Schery and Janick

Vavilov centers are regions where a high diversity of crop wild relatives can be found, representing the natural relatives of domesticated crop plants.

Cultivated plants of eight world centers of origin [6][7]

Center Plants
1) South Mexican and Central American Center Includes southern sections of Mexico, Guatemala, El Salvador, Honduras and Costa Rica.
2) South American Center 62 plants listed; three subcenters

2) Peruvian, Ecuadorean, Bolivian Center:

2A) Chiloé Center (Archipelago near the coast of southern Chile)

2B) Brazilian-Paraguayan Center

3) Mediterranean Center Includes all of
Northern Africa bordering the Mediterranean Sea
. 84 listed plants
4) Middle East Includes interior of
Transcaucasia, Iran, and the highlands of Turkmenistan
. 83 species
5) Abyssinian Center Includes Ethiopia, Eritrea, and part of Somalia. 38 species listed; rich in wheat and barley.
  • Grains and Legumes: Abyssinian hard wheat, poulard wheat,
    teff
  • Miscellaneous:
    enset
    .
6) Central Asiatic Center Includes Northwest India (Punjab, Northwest Frontier Provinces and Kashmir),
Tian-Shan
. 43 plants
7) Indian Center Two subcenters

7) Indo-Burma: Main Center (India): Includes

Burma
, but not Northwest India, Punjab, nor Northwest Frontier Provinces, 117 plants

7A) Siam-Malaya-Java: statt Indo-Malayan Center: Includes Indo-China and the Malay Archipelago, 55 plants

8) Chinese Center A total of 136 endemic plants are listed in the largest independent center

Purugganan and Fuller 2009 scheme

[9]

Center Plants Years before present

1) eastern North America

Helianthus annuus

4,500–4,000 years

2) Mesoamerica

Cucurbita pepo

10,000

Zea mays

9,000–7,000

2a) northern lowland

neotropics

Ipomoea batatas, Phaseolus vulgaris, tree crops

9,000–8,000

3) central mid-altitude Andes

Chenopodium quinoa, Amaranthus caudatus

5,000

3a) north and central Andes, mid-altitude and high altitude areas

8,000

3b) lowland southern

Amazonia

Arachis hypogaea

8,000

3c) Ecuador (part of 3, 3a, and/or 3b?) and northwest Peru

10,000

4) western

sub-Saharan African

Pennisetum glaucum

4,500

4a) west African savanna and woodlands

Vigna unguiculata

3,700

Digitaria exilis and Oryza glaberrima

<3,000

4b) west African rainforests

Dioscorea rotundata and Elaeis guineensis

poorly documented

5) east Sudanic Africa

Sorghum bicolor

>4,000?

6) east African uplands

Eleusine coracana

4,000?

east African lowlands

Dioscorea cayennensis and Ensete ventricosum

poorly documented

7) Near East

Cicer arietinum, Vicia faba

13,000–10,000

7a) eastern Fertile Crescent

additional Hordeum vulgare

goats

9,000

8a) Gujarat, India

Panicum sumatrense and Vigna mungo

5,000?

8b) Upper

Indus

Vigna radiata, and Vigna aconitifolia

5,000

8c) Ganges

Oryza sativa subsp. indica

8,500–4,500

8d)

southern India

Vigna radiata, and Macrotyloma uniflorum

5,000–4,000

9) eastern

Himalayas and Yunnan
uplands

Fagopyrum esculentum

5,000?

10)

northern China

Panicum miliaceum

8,000

Glycine max

4,500?

11)

southern Hokkaido
, Japan

Echinochloa crusgalli

4,500

12)

Yangtze River Valley
, China

Oryza sativa subsp. japonica

9,000–6,000

12a)

southern China

Coix lacryma-jobi

poorly documented, 4,500?

13) New Guinea and Wallacea

Colocasia esculenta, Dioscorea esculenta, and Musa acuminata

7,000

See also

References

  1. ^ "International Treaty on Plant Genetic Resources for Food and Agriculture" (PDF). Food and Agriculture Organization of the United Nations. 2009. p. Article 2.
  2. S2CID 13350469
    .
  3. ^ Blaine P. Friedlander Jr (June 20, 2000). "Cornell and Polish research scientists lead effort to save invaluable potato genetic archive in Russia". Retrieved March 19, 2008.
  4. .
  5. ^ Corinto, Gian Luigi (2014). "Nikolai Vavilov's Centers of Origin of Cultivated Plants With a View to Conserving Agricultural Biodiversity". Human Evolution. 29 (4): 285–301.
  6. ^ Adapted from Vavilov (1951) by R. W. Schery, Plants for Man, Prentice Hall, Englewood Cliffs, NJ, 1972
  7. ^ History of Horticulture, Jules Janick, Purdue University, 2002
  8. PMID 24753573
    .
  9. .