Rice and its grain relatives,maize,barley,and wheat,diverged from a common ancestor 50 million years ago,however the chromosomes of these plants demonstrate extensive conserved arrangements of segments.This phenomenon is called

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The phenomenon described is called synteny, which is the conserved arrangement of segments between chromosomes of different organisms or even different species.

Rice and Its Grain Relatives,maize,barley,and Wheat,diverged from a Common Ancestor