Common wheat
Common wheat (Triticum aestivum), also known as bread wheat, is a cultivated wheat species.[1][2][3][4] About 95% of the wheat produced is common wheat.
Common wheat has been got by many generations of artificial selection by farmers choosing the most productive plants which occurred in their crops.[4]
Evolution[edit | edit source]
Bread wheat is an allohexaploid, instead of the original two sets (diploid). There are six sets of chromosomes, two sets from each of three different species.[5][6]. Free-threshing wheat is closely related to spelt wheat. As with spelt, genes from goatgrass (Aegilops tauschii) give bread wheat greater cold hardiness than most wheats. It is cultivated throughout the world's temperate zones.
Of the six sets of chromosomes, two come from einkorn wheat and two from Aegilops speltoides. This hybridisation created the species Triticum turgidum, 580– 820 thousand years ago. The last two sets of chromosomes came from Aegilops tauschii, 230–430 thousand years ago.[7]
References[edit | edit source]
- ↑ Excellent resource for 20th century plant breeding.
- ↑
- ↑
- ↑ 4.0 4.1 Standard reference for evolution and early history.
- ↑ Brenchley et al 2012. Analysis of the bread wheat genome using whole-genome shotgun sequencing. Nature 491 (7426): 705–10. [1]
- ↑ Mayer K.F.X. 2014. A chromosome-based draft sequence of the hexaploid bread wheat (Triticum aestivum) genome. Science 345 (6194): [2]
- ↑ Marcussen T. et al 2014. Ancient hybridizations among the ancestral genomes of bread wheat. Science 345 (6194): [3].
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD
|
WikiMD's Wellness Encyclopedia |
| Let Food Be Thy Medicine Medicine Thy Food - Hippocrates |
Translate this page: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
தமிழ்,
తెలుగు,
Urdu,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
বাংলা
European
español,
Deutsch,
français,
Greek,
português do Brasil,
polski,
română,
русский,
Nederlands,
norsk,
svenska,
suomi,
Italian
Middle Eastern & African
عربى,
Turkish,
Persian,
Hebrew,
Afrikaans,
isiZulu,
Kiswahili,
Other
Bulgarian,
Hungarian,
Czech,
Swedish,
മലയാളം,
मराठी,
ਪੰਜਾਬੀ,
ગુજરાતી,
Portuguese,
Ukrainian
WikiMD is not a substitute for professional medical advice. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.
Contributors: Prab R. Tumpati, MD
