Chloroplast DNA is vastly more abundant than nuclear DNA, since each plant cell can have thousands of copies of chloroplast genes but just two to four copies of each nuclear gene.

叶绿体基因(Chloroplast DNA)远比核基因(nuclear DNA)丰富，因为每个植物细胞可以有数千个叶绿体基因，但是每个核基因只有两个到四个核基因副本。

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The results show that genetic background would not affect the expression of chloroplast and nuclear genes.

说明遗传背景不同会影响叶绿体和核基因的表达。

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