Genetic variation is major study content in conservation genetics. In small population, genetic variation loss because of bottleneck effect, inbreeding, founder effect, and genetic drift.

遗传变异性是遗传保护研究的主要内容，在小种群中，往往由于瓶颈效应、近亲繁殖、奠基者效应和遗传漂变等使得遗传变异性减少。

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Therefore, the most significant feature for origin of monomorphic population is the founder events of self-compatibility of long-styled individuals.

可见，长花柱单态居群的形成最主要的特点是其自交亲和性决定的建立者效应。

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