Polyploid is a remarkable characteristic in the chromosome evolution of higher plant, and about 70% of angiosperms have experienced polyploidization once or more in their evolutionary history.

多倍体是高等植物染色体进化的一个显著特征，约70 %的被子植物在其进化过程中曾经历过一次或多次多倍化事件。

youdao

Because the marks of evolution are literally all over our chromosome.

因为进化的标志印遍了我们的染色体。

youdao

OBJECTIVE To study the evolution, identification and fine seeds selection through Bidens parviflora chromosome number, karyotype and volume.

目的对小花鬼针草染色体核型等进行研究，为研究该种鉴定、起源、演化、良种培育等提供必要的细胞学资料。

youdao