×"耀"

Yiping Zou1,2,3, Tao Zhuo1, Yan Duan4

  • 1College of Forestry, Nanjing Forestry University, Nanjing 210037, China.

概括

叶子变异在Ilex ×"太阳耀斑"中是由于叶绿体异常和叶绿素合成受损引起的. 基因表达的变化破坏了色素的产生和叶绿体的发育,导致了植物独特的黄色和绿色图案.

相关概念视频

Position-effect Variegation02:32

Position-effect Variegation

In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
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