Table 3.

Mean genetic values of proportion soma in isolate lines of P. starrii across selective treatments

Cell number	Environment	Plus	s.d.	Control	s.d.	Minus	s.d.
All^#	Both	0.37^A	0.03	0.34^B	0.06	0.36^A/B	0.04
All	Still	0.36^A	0.04	0.33^B	0.07	0.37^A	0.04
All	Mixed	0.37^A	0.01	0.36^A/B	0.02	0.35^B	0.04
4		0.52	0.11	0.56	0.24	0.56	0.08
8		0.51	0.09	0.49	0.07	0.50	0.08
16		0.30	0.07	0.30	0.07	0.28	0.04
32		0.36	0.03	0.34	0.05	0.35	0.03
64		0.38	0.03	0.36	0.04	0.37	0.04

Note: ‘All’ indicates weighted average across all cell number categories (see Methods). ‘Plus’ refers to selection for large size, ‘Control’ to no selection, and ‘Minus’ to selection for small size. s.d. = standard deviation of the preceding mean. Superscripts indicate significant differences among selective treatments at α = 0.05 (pairwise comparisons using Tukey post-hoc test, A > B). Comparisons across both environments (‘Both’ in the environment column) are based on two-way ANOVAs (selective treatment + environment); all other comparisons (including all comparisons within cell number categories) are based on one-way ANOVAs (selective treatment).

Significant interaction between treatment and environment.