Comparative evaluation of chemical profiles of three representative 'snow lotus' herbs by UPLC-DAD-QTOF-MS combined with principal component and hierarchical cluster analyses

2016 ◽  
Vol 9 (8) ◽  
pp. 1105-1115 ◽  
Author(s):  
Qi-Lei Chen ◽  
Lin Zhu ◽  
Yi-Na Tang ◽  
Hiu-Yee Kwan ◽  
Zhong-Zhen Zhao ◽  
...  
Keyword(s):  
Comparative Evaluation ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Cluster Analyses ◽  
Chemical Profiles ◽  
Snow Lotus ◽  
Hierarchical Cluster Analyses

Principal component and hierarchical cluster analyses for classification and categorization of sesame germplasm

2015 ◽  
Vol 16 (2) ◽  
pp. 345
Author(s):  
Amit Singh ◽  
Ram Avtar ◽  
Nisha Kumari ◽  
O. Sangwan ◽  
R. K. Sheoran
Keyword(s):  
Principal Component ◽  
Hierarchical Cluster ◽  
Cluster Analyses ◽  
Hierarchical Cluster Analyses

scholarly journals Differences among the Anthocyanin Accumulation Patterns and Related Gene Expression Levels in Red Pears

Plants ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 100 ◽  
Author(s):  
Meng Wu ◽  
Jianlong Liu ◽  
Linyan Song ◽  
Xieyu Li ◽  
Liu Cong ◽  
...  
Keyword(s):  
Principal Component ◽  
Hierarchical Cluster ◽  
Anthocyanin Synthesis ◽  
Anthocyanin Accumulation ◽  
Related Gene ◽  
Accumulation Pattern ◽  
Expression Levels ◽  
Coloration Patterns ◽  
Hierarchical Cluster Analyses ◽  
Gene Expression Levels

Differences in coloration exist among red pear cultivars. Here, we selected six red pear cultivars with different genetic backgrounds to elucidate the characteristics of fruit pigmentation. We detected anthocyanin contents and the expression levels of anthocyanin synthesis-related genes in these cultivars at different stages of fruit development. The anthocyanin contents of all six cultivars showed a rise–drop tendency. Principal component and hierarchical cluster analyses were used to distinguish the types of cultivars and the genes crucial to each anthocyanin accumulation pattern. The six cultivars were divided into three groups. Red Zaosu were clustered into one group, Red Sichou and Starkrimson into another group, and Palacer, Red Bartlett, and 5 Hao clustered into a third group. The expression levels of F3H, UFGT2, MYB10, and bHLH3 were similar among the differential coloration patterns of the six cultivars, suggesting a critical and coordinated mechanism for anthocyanin synthesis. Anthocyanin transporters (GST) and light-responsive genes, such as COP1, PIF3.1, and PIF3.2 played limited roles in the regulation of anthocyanin accumulation. This study provides novel insights into the regulation of anthocyanins synthesis and accumulation in red pears.

scholarly journals Principal Components and Hierarchical Cluster Analyses of Trace Metals and Total Hydrocarbons in Gills, Intestines and Muscles of Clarias gariepinus (Burchell, 1822)

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Patrick Omoregie Isibor ◽  
Tunde O. Thaddeus Imoobe ◽  
Alex Ajeh Enuneku ◽  
Paul Akinniyi Akinduti ◽  
Gabriel Adewunmi Dedeke ◽  
...  
Keyword(s):  
Trace Metals ◽  
Principal Components ◽  
Clarias Gariepinus ◽  
Hierarchical Cluster ◽  
Cluster Analyses ◽  
Total Hydrocarbons ◽  
Hierarchical Cluster Analyses

scholarly journals 1H NMR-Based Chemometrics to Gain Insights Into the Bran of Radiation-Induced Colored Wheat Mutant

2022 ◽  
Vol 8 ◽  
Author(s):  
Yun-Seo Kil ◽  
Ah-Reum Han ◽  
Min-Jeong Hong ◽  
Jin-Baek Kim ◽  
Pil-Hoon Park ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Primary Metabolites ◽  
H Nmr ◽  
Induced Mutants ◽  
Radiation Induced ◽  
Mutant Lines ◽  
Hierarchical Cluster Analyses ◽  
High Polarity

Recently, wheat has attracted attention as a functional food, rather than a simple dietary energy source. Accordingly, whole-grain intake increases with an understanding of bioactive phytochemicals in bran. The development of colored wheat has drawn more attention to the value of bran owing to its nutritional quality, as well as the antioxidant properties of the colorant. The present 1H NMR-based chemometric study evaluated the compositional improvement of radiation-induced mutants in purple wheat by focusing on the predominant metabolites with high polarity. A total of 33 metabolites, including three choline derivatives, three sugar alcohols, four sugars, 13 amino acids, eight organic acids, and two nucleosides, were identified throughout the 1H NMR spectra, and quantification data were obtained for the identified metabolites via peak shape-based quantification. Principal component and hierarchical cluster analyses were conducted for performing multivariate analyses. The colored original wheat was found to exhibit improvements compared to yellow wheat in terms of the contents of primary metabolites, thus highlighting the importance of conducting investigations of polar metabolites. The chemometrics studies further revealed mutant lines with a compositional enhancement for metabolites, including lysine, proline, acetate, and glycerol.

scholarly journals Genetic Diversity and Population Structure of Maize Inbred Lines with Varying Levels of Resistance to Striga Hermonthica Using Agronomic Trait-Based and SNP Markers

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1223
Author(s):  
Adekemi Stanley ◽  
Abebe Menkir ◽  
Agre Paterne ◽  
Beatrice Ifie ◽  
Pangirayi Tongoona ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Molecular Diversity ◽  
Hierarchical Cluster ◽  
Molecular Data ◽  
Inbred Lines ◽  
Striga Hermonthica ◽  
Cluster Analyses ◽  
Maize Inbred Lines ◽  
Hierarchical Cluster Analyses

Striga hermonthica is a serious biotic stress limiting maize production in sub-Saharan Africa. The limited information on the patterns of genetic diversity among maize inbred lines derived from source germplasm with mixed genetic backgrounds limits the development of inbred lines, hybrids, and synthetics with durable resistance to S. hermonthica. This study was conducted to assess the level of genetic diversity in a panel of 150 diverse maize inbred lines using agronomic and molecular data and also to infer the population structure among the inbred lines. Ten Striga-resistance-related traits were used for the phenotypic characterization, and 16,735 high-quality single-nucleotide polymorphisms (SNPs), identified by genotyping-by-sequencing (GBS), were used for molecular diversity. The phenotypic and molecular hierarchical cluster analyses grouped the inbred lines into five clusters, respectively. However, the grouping patterns between the phenotypic and molecular hierarchical cluster analyses were inconsistent due to non-overlapping information between the phenotypic and molecular data. The correlation between the phenotypic and molecular diversity matrices was very low (0.001), which is in agreement with the inconsistencies observed between the clusters formed by the phenotypic and molecular diversity analyses. The joint phenotypic and genotypic diversity matrices grouped the inbred lines into three groups based on their reaction patterns to S. hermonthica, and this was able to exploit a broad estimate of the actual diversity among the inbred lines. The joint analysis shows an invaluable insight for measuring genetic diversity in the evaluated materials. The result indicates that wide genetic variability exists among the inbred lines and that the joint diversity analysis can be utilized to reliably assign the inbred lines into heterotic groups and also to enhance the level of resistance to Striga in new maize varieties.

scholarly journals Morphmetric analysis of apis cerana populations in Huangshan, China

2013 ◽  
Vol 57 (2) ◽  
pp. 117-124 ◽  
Author(s):  
Linsheng Yu ◽  
Fang Liu ◽  
Sisi Huang ◽  
Shoudong Bi ◽  
Chao Zong ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Honey Bees ◽  
Apis Cerana ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Component Analysis ◽  
Morphometric Characters ◽  
Morphometric Methods ◽  
Wilks Lambda ◽  
Hierarchical Cluster Analyses

Abstract Honey bees (Apis cerana Fabricius) were collected from 195 colonies at seven different localities spanning the main beekeeping areas in Huangshan. Morphometric methods were used to measure seven standard morphometric characters, and these bees were compared to samples from the Henan, Shandong, and Yunnan provinces. Principal component analysis of the total Huangshan database yielded two clusters: bees from Jinxian and Jixixian, and those from other localities. Within the latter cluster, discriminant and hierarchical cluster analyses revealed overlapping regional sub-clusters: bees from Huangshanqu, Qimenxian, Huizhouqu, and Shexian, and those from Yixian. Significant differences between the means of the three clusters were demonstrated using Wilks’ lambda statistic. Morphocluster separation was related to altitude differences. Moreover, we noted some regions with high intercolonial variance, suggesting introgression among these defined honeybee populations.

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