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young brunette girl reveals on a wheat field

Young Brunette Girl Reveals On A Wheat Field

Genetics
Wheat genetics is more complicated than that of most other domesticated species. Some wheat species are diploid, with two sets of chromosomes, but many are stable polyploids, with four sets of chromosomes (tetraploid) or six (hexaploid).
Einkorn wheat (T. monococcum) is diploid (AA, two complements of seven chromosomes, 2n=14).
Most tetraploid wheats (e.g. emmer and durum wheat) are derived from wild emmer, T. dicoccoides. Wild emmer is itself the result of a hybridization between two diploid wild grasses, T. urartu and a wild goatgrass such as Aegilops searsii or Ae. speltoides. The unknown grass has never been identified among now surviving wild grasses, but the closest living relative is Aegilops speltoides. The hybridization that formed wild emmer (AABB) occurred in the wild, long before domestication, and was driven by natural selection.

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Filename:304316.jpg
Album name:Babes
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Keywords:#young #brunette #girl #reveals #wheat #field
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Date added:Aug 09, 2010
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