作物基因表达一方面受到遗传基因的控制，另一方面，环境中的生物与非生物因素对基因表达也起到重要的调节作用。

Heredity is controlled by genes, but their expression is turned on and off throughout life depending upon biotic and abiotic factors in environment.

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CO能够将光信号与生物钟信号整合，调节开花基因flowering LOCUS T (FT)的表达，并最终控制植物的开花时间。

CO can integrate the light signal into circadian clock and regulates the expression of FLOWERING LOCUS t (FT) which induced floral.

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