Figure 2 | Scientific Reports

Figure 2

From: The Seminal fluid proteome of the polyandrous Red junglefowl offers insights into the molecular basis of fertility, reproductive ageing and domestication

Figure 2

Multivariate ordination of seminal fluid protein abundance with respect to male age and sperm velocity.

(A) Principle Component Analysis (PCA1) variables factor map. The direction of the arrows represents the relative loadings of the four categories (Old Fast, Old Slow, Young Fast, Young Slow) on the first and second dimension. All four categories have strong positive loadings on dimension 1; Old Fast has a significant positive loading and Old Slow and Young Fast have significant negative loadings on dimension 2, respectively. (B) Between group PCA (PCA2) biplot. First and second dimension loadings for the four categories of males are displayed, as well as the extent of within category variance (ovals) and loadings of individuals within each category (points at the end of solid lines).

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