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- Title
Gender Discrimination of Flower Buds of Mature Populus tomentosa by HPLC Fingerprint Combined with Chemometrics.
- Authors
Li, Zhuojun; Wu, Cui; Xu, Bo; Wang, Huijun; Song, Pingping; Liu, Zhenying; Chao, Zhimao
- Abstract
A high performance liquid chromatography-diode array detector (HPLC-DAD) was used to establish the HPLC fingerprint. Chemometrics methods were used to discriminate against the gender of flower buds of Populus tomentosa based on areas of common peaks calibrated with the HPLC fingerprint. The score plot of principal component analysis (PCA) showed a clear grouping trend (R2X, 0.753; Q2, 0.564) between female and male samples. Two groups were also well discriminated with orthogonal partial least squares-discriminant analysis (OPLS-DA) (R2X, 0.741; R2Y, 0.980; Q2, 0.970). As the hierarchical clustering analysis (HCA) heatmap showed, all samples were separated into two groups. Four compounds were screened out by S-plot and variable importance in projection (VIP > 1.0). Two of them were identified as siebolside B and tremulacin. This study demonstrated that HPLC fingerprints combined with chemometrics can be applied to discriminate against dioecious plants and screen differences, providing a reference for identifying the gender of dioecious plants.
- Subjects
CHEMICAL fingerprinting; SEX discrimination; CHEMOMETRICS; POPLARS; DIOECIOUS plants
- Publication
International Journal of Analytical Chemistry, 2022, p1
- ISSN
1687-8760
- Publication type
Article
- DOI
10.1155/2022/1281521