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. 2017 Feb 1;8:14225. doi: 10.1038/ncomms14225

Figure 2. Principal component analysis of neuropeptide relative abundances.

Figure 2

Graph of the association between abundances and three non-parenting and parenting behavioural states of Nicrophorus vespilloides (red: virgin, black: actively parenting, blue: post-parenting). Principal component analysis (PCA) based on four biological replicates of each behavioural state, with eight individual brains pooled to form a biological sample. Ellipses show the 95% confidence area of each group.