Table 3.

Associations between chromosome number (n) and holoploid genome size (Mbp) for Schoenus and the southern African Schoenus clade, while considering phylogenetic relationships among species.

Clade	Slope estimate	Slope standard error	t value	R  2  adj	lambda	PGLS P-value
Schoenus	264.26	57.85	4.57	0.42	0.000	<0.001*
southern African Schoenus	231.86	61.66	3.76	0.35	0.373	0.001*

We conducted phylogenetic generalized least squares (PGLS) analyses with the function ‘pgls’ (R package ‘caper’ v.1.0.1; Orme et al., 2013). Significant relationships between variables (P ≤ 0.05) are indicated by an asterisk (*).