In vitro tetraploid induction and plant regeneration of Pinellia ternata, a pearl-like herb
文献类型： 外文期刊
作者： Ren, Yan 1 ; Gao, Jinrong 1 ; Dong, Xian 1 ; Yan, Hongmei 2 ; Huang, Hengyu 1 ;
作者机构： 1.Yunnan Univ Chinese Med, Yunnan Breeding & Cultivat Res & Dev Ctr Endangere, 1076 Yuhua Rd, Kunming 650500, Peoples R China
2.Yunnan Acad Agr Sci, Inst Qual Stand & Testing Technol, Kunming 650205, Peoples R China
关键词： Pinellia ternata (Thunb); Polyploid induction; Rapid propagation system; Morphological characteristics
期刊名称：PLANT CELL TISSUE AND ORGAN CULTURE （ 影响因子：3.0； 五年影响因子：3.0 ）
ISSN： 0167-6857
年卷期： 2024 年 156 卷 3 期
页码：
收录情况： SCI
摘要：
Pinellia ternata (Thunb.) is a widely used Chinese medicinal herb in many countries globally. However, asexual reproduction causes the germplasm of P. ternata to degrade, and there is limited research on genetic breeding. The objective of this study is to induce tetraploid 'Pearl' P. ternate plants by treating leaves and tubers with colchicine to acquire superior germplasm resources. The in vitro medium for autotetraploid plants was optimized through orthogonal experiments. Subsequently, the morphology, tissues, and cells of diploid and tetraploid plants were compared. The results indicated that the number of chromosomes in diploid plants was 2n = 2x = 66, while the tetraploid plants were 2n = 4x = 132 by somatic chromosome counting and flow cytometry analysis. The leaf was more suitable than the tuber for polyploid induction, and the maximum induction rate was 29.49% when leaves were treated with a 0.05% colchicine solution for 96 h. In MS medium supplemented with 0.1 mg
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