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Fig. 3 | BMC Developmental Biology

Fig. 3

From: Dynamics of nuclear receptor gene expression during Pacific oyster development

Fig. 3

Principle component analysis (PCA) of 31 Crassostrea gigas nuclear receptor gene expression data. a Scatterplot of the first two PCA components of developmental stages indicating separation based upon the variance observed in the expression levels of 31 of the 34 nuclear receptor genes. Principal component 1 (PC1) and 2 (PC2) explain 43 and 25 % of variance, respectively. b Scatterplot of PC1 and PC2 scores indicating the separation of 31 nuclear receptors based on expression across life stages. Circles around measurements represent distinct clustering for developmental stages or nuclear receptors: early development (solid line), mid development (dotted lines), late development (dashed line). Number codes for nuclear receptors can be found in (c). c Bar chart showing the contribution (in percentage) of each nuclear receptor towards the variability of PC1 and PC2. The orange dashed line: expected average contribution. Letters/numbers/bars: early development (green), mid development (red), late development (blue), receptors not assigned (black). h: hour post fertilisation; d: days post fertilisation; E: unfertilised eggs

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