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C-带技术被广泛用于显示玉米根尖染色体基本的异染色质。一些结果表明,通过这种方法可把玉米异染色质分为几个不同的类型。从细胞学上讲,玉米异染色质分为5类:(1)着丝点异染色质;(2)NOR(核仁组织区)异染色质;(3)染色节异染色质,出
C-banding techniques are widely used to display basic heterochromatin in corn apical chromosomes. Some results show that maize heterochromatin can be divided into several different types by this method. Cytologically, heterochromatin in maize is divided into five categories: (1) centromere heterochromatin; (2) NOR (nucleolar organizer region) heterochromatin; (3) stained heterochromatin and