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. 2016 May 13;17(5):720. doi: 10.3390/ijms17050720

Figure 1.

Figure 1

Figure 1

Hierarchical cluster analysis (CLA) and principal component analysis (PCA) of HB12 RNAi alfalfa (H), TT8 RNAi alfalfa (T) and nontransgenic alfalfa (C) for spectral region: (1) structural carbohydrate fingerprint region: ca. 1485–1188 cm−1; (2) cellulosic compound fingerprint region: ca. 1294–1188 cm−1; (3) total carbohydrate fingerprint region: ca. 1190–930 cm−1; (4) non-structural carbohydrate fingerprint region: ca. 931–875 cm−1. Cluster methods (Ward’s algorithm) and distance measure (Eculidean distances) were used in CLA analysis. Scatter plots of two principal components (PC1 vs. PC2) in PCA analysis.