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Development of EST-SSR Markers Related to Polyphyllin Biosynthesis Reveals Genetic Diversity and Population Structure in Paris polyphylla

文献类型： 外文期刊

作者： Gao, Xiaoyang 1 ; Su, Qixuan 1 ; Yao, Baolin 1 ; Yang, Wenjing 1 ; Ma, Weisi 4 ; Yang, Bin 4 ; Liu, Changning 1 ;

作者机构： 1.Chinese Acad Sci, CAS Key Lab Trop Plant Resources & Sustainable Us, Xishuangbanna Trop Bot Garden, Kunming 650223, Yunnan, Peoples R China

2.Univ Sci & Technol China, Sch Life Sci, Hefei 230026, Peoples R China

3.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China

4.Yunnan Acad Agr Sci, Inst Med Plants, Kunming 650205, Yunnan, Peoples R China

5.Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, Xishuangbanna 666303, Peoples R China

6.Chinese Acad Sci, Innovat Acad Seed Design, Kunming 650223, Yunnan, Peoples R China

关键词： Paris polyphylla; transcriptome; polyphyllin; EST-SSR markers; genetic diversity

期刊名称：DIVERSITY-BASEL （ 影响因子：3.029； 五年影响因子：2.905 ）

ISSN：

年卷期： 2022 年 14 卷 8 期

页码：

收录情况： SCI

摘要： Paris polyphylla is an important medicinal plant that can biosynthesize polyphyllins with multiple effective therapies, ranging from anti-inflammation to antitumor; however, the genetic diversity of Paris polyphylla is still unclear. To explore the genetic characteristics of cultivation populations in primary planting areas, we developed 10 expressed sequence tag simple sequence repeat (EST-SSR) markers related to polyphyllin backbone biosynthesis and utilized them in 136 individuals from 10 cultivated populations of P. polyphylla var. yunnanensis. The genetic diversity index showed that ten loci had relatively high genetic polymorphism levels. Shannon information of loci suggested that more information occurred within population and less information occurred among population. In addition, the overall populations exhibited a low degree of differentiation among populations, but maintained a high degree of genetic diversity among individuals, resulting in high gene flow and general hybridization. The genetic structure analysis revealed that 10 populations possibly derived from two ancestral groups and all individuals were found with different levels of admixture. The two groups were different from the cultivation groups at population level, suggesting the cross-pollination among cultivars. These findings will provide insights into the genetic diversity of the germplasm resources and facilitate marker-assisted breeding for this medicinal herb.

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