AI Article Synopsis
- The study aimed to investigate the genetic background and distribution of Pinellia ternata across 27 populations in China.
- Researchers used cytological and cytogeographical methods to analyze the chromosomal compositions, revealing that P. ternata is a complex with various ploidy levels, including septuploid, octoploid, nonuploid, and decaploid.
- The findings emphasize the genetic diversity and ploidy variation in P. ternata, suggesting that understanding toxicity and chemical components in different ploidy forms is critical for selecting superior plants for cultivation.
Article Abstract
Objective: In order to clarify the genetic background of Pinellia ternata germplasm resources in China, the chromosomal constitution and cytogeographical distribution of P. ternata were investigated in 27 different populations among 16 provinces and regions in China systematically.
Method: Cytological and cytogeographical methods were used in the study.
Result: P. ternata in China is a polyploid complex, which contains septuploid (2n = 7x = 91) , octoploid (2n = 8x = 104) , nonuploid (2n = 9x = 117) and decaploid (2n = 10x = 130). Meanwhile the aneuploid series (2n = 92, 103, 105, 115) of a minority of P. ternata were also found.
Conclusion: The genetic differentiation and the phenomenon of ploidy miscellany commonly exist in the species of P. ternata in China, both for natural populations and cultivated populations. Toxicity and chemical components of different ploidy P. ternata should be clarified before the superior multiploid is selected for normalized plantation of the plant.
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