一般信息

Wheat

Triticum spp.

Wheat is the most important crop in the world in terms of area harvested (220 million hectares in 2014). The main types of cultivated wheat are the hexaploid bread wheat (T. aestivum), and tetraploid durum wheat (T. turgidum). Other types of wheat, such as einkorn, emmer and spelt, are still grown on a more limited scale in some regions, though interest has been increasing of late.

The earliest forms of domesticated wheat originated in southeast Turkey. From there, the crop spread to the Near East (9000 BP). The dispersal of the crop into Europe occurred through Greece (8000 BP). It reached the Balkans, the Danube, and southern Europe by 7000 BP. Wheat was brought to China through Iran and Central Asia (3000 BP), and it entered Africa through Egypt. The Spanish introduced the crop to Mexico in the 16th century. 

Wheat is conserved as seeds. Over 560,000 accessions are held among 40 different collections, as described in the global ex situ conservation strategy for wheat, rye and triticale.

Almost 320,000 wheat accessions are visible on Genesys. Nearly 23% of these are landraces, and about 7% are wild relatives. The International Maize and Wheat Improvement Center (CIMMYT) hosts the largest wheat collection in the world, followed by the USDA-ARS genebanks, the Australian Grains Genebank and ICARDA.

Wheat is expected to be negatively impacted by climate change. Due to its importance in diets and livelihoods, a global effort led by CIMMYT is harnessing the genetic diversity of wheat to produce more resilient, productive and nutritious varieties.

原始名称
Wheat
Genesys 中的种质
42399934072_c5d4bfe3f5_o.jpg
所属机构
MEX002
USA029
SYR002
AUS165
GBR011
其他
52,147
所属机构所在国家/地区
其他
37,056
最具代表性的属
Triticum
Aegilops
Elymus
Undetermined
Agropyron
其他
254
最具代表性的种
Triticum aestivum
Triticum turgidum
Triticum monococcum
Triticum aethiopicum
Triticum durum
其他
19,951
其他名称
bread wheat
common wheat
durum wheat
soft wheat
spring wheat
trigo
wheat
winter wheat