Table 1. Significant genetic variation and heritability in abundance of commensal gut bacteria across DGRP lines of Drosophila.

	d.f.	F	P	Genetic variance	Error variance	Block variance	H2
A. tropicalis	35	2.72	0.0005	1.46	2.24	0.0357	0.394
E. faecalis	25	1.03	0.462	0.853	8.24	2.45	0.0938
L. brevis	33	2.61	0.0008	2.74	4.40	0.000	0.384
L. plantarum	35	2.60	0.0007	1.92	3.04	12.8	0.388