流行的品种中有相当数量的芽变。

There are a number of bud sports of popular varieties.

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体细胞突变是柑橘等果树比较常见的生物学现象，也是品种选育，即芽变选种的主要变异来源。

Somatic mutation, a main biological phenomenon of citrus and other fruits, is often used for breeding as a major variation source. Spontaneous mutations often occur in citrus.

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是从乍娜的芽变中选出的葡萄新品种。

The new grape variety '90-1'is selected from the bud mutation of 'Zhana'.

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