Disease Resistance in Wheat

Wheat is a monocot belonging to the family poaceae. It is an important cereal crop consumed as a staple food after maize. Wheat (Triticum spp.) is a grass from the Fertile Crescent region of the Near East (the Karacadag Mountains in south-eastern Turkey) which is now cultivated worldwide. The...

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Библиографические подробности
Главный автор: Sharma, Indu
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Язык:English
Опубликовано: CABI 2014
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Online-ссылка:https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/37113
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Итог:Wheat is a monocot belonging to the family poaceae. It is an important cereal crop consumed as a staple food after maize. Wheat (Triticum spp.) is a grass from the Fertile Crescent region of the Near East (the Karacadag Mountains in south-eastern Turkey) which is now cultivated worldwide. There exists nearly 24 species of Triticum. Einkorn wheat (Triticum monococcum) and emmer/durum wheat dates back to 8000-9000 sc. Einkorn is diploid (AA) and durum is deri- ved from wild emmer, Triticum dicoccoides (AABB), which resulted by natural selection from the hybridization of Triticum urartu and Aegilops speltoides. Bread wheat, which is hexaploid (AABBDD), evolved from either wild or domesticated emmer hybridized with another diploid grass, Aegilops cylindrica. Synthetic hexaploid wheats have been devel- oped by crossing wild goat grass, Aegilops tauschii (D genome sps.), with durum wheat to create more genetic diversity. Synthetic wheats are not easy to thresh as toughened glumes enclose the grains tightly (http://en. wikipedia.org/wiki/Wheat#History).