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Genetic diversity and quality analysis of Rehmannia glutinosa in different germplasm / 中国中药杂志
China Journal of Chinese Materia Medica ; (24): 4210-4216, 2018.
Article in Chinese | WPRIM | ID: wpr-775357
ABSTRACT
The study aims at evaluating genetic diversity and medicinal quality of cultivated germplasm in Rehmannia glutinosa, and providing theoretical guidance for screening excellent germplasm. The genetic diversity of 21 species of R. glutinosa were analyzed by SRAP molecular markers, and the catalpol and verbascoside was determined by HPLC. The mass fraction of catalpol and verbascoside in R. glutinosa germplasm were respectively in the range of 2.393%-6.519% and 0.063%-0.478%, the germplasm 14, 16, 15 and 20 germplasm, witch catalpol and verbascoside content was higher. A total of 57 bands were produced by 10 primer, among which 40 polymorphic bands were polymorphic bands, and the percentage of polymorphic loci was 8.77%-54.39%, the Nei's genetic diversity index (H) was 0.374 1, Shannon's polymorphism information index (I) was 0.546 6. Gst and gene flow Nm were 0.608 8 and 0.321 3, respectively. Based on the genetic uniformity, 21 species of germplasm were grouped into 2 categories. The genetic diversity level of R. glutinosa was medium low. The comprehensive consideration of the genetic diversity and the content inculde catalpol and verbascoside, germplasm 7 and germplasm 18 could be used as the preferred materials for the cultivation of reticulum. Germplasm 15 and 16 can be used as the preservation and breeding object of rhubarb germplasm.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Phylogeny / Plants, Medicinal / Genetic Variation / Rehmannia / Gene Flow / Plant Breeding / Genetics Limits: Animals Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2018 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Phylogeny / Plants, Medicinal / Genetic Variation / Rehmannia / Gene Flow / Plant Breeding / Genetics Limits: Animals Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2018 Type: Article