Table 2.

The top genetic markers associated with the bacterial OTU (i.e., Phylum: Bacteroidetes, Class: Bacteroidia and Order: Bacteroidales) explained the most variance in the variation of methane emission.

Chromosome	Position	Allele 1	Allele 2	Frequency	Effect size	Standard error	p value
1	118226740	A	C	0.33	−0.25	0.07	1.9e−4
1	119579301	A	G	0.32	0.26	0.07	1.4e−4
3	114797789	A	G	0.29	−0.28	0.07	1.4e−4
5	82878525	G	A	0.34	−0.27	0.07	5.7e−5
9	75484456	A	G	0.18	0.32	0.08	8.1e−5
13	9276071	G	A	0.48	0.24	0.06	2.2e−4
13	9424085	A	G	0.47	0.24	0.06	1.9e−4
15	55206099	A	G	0.47	−0.23	0.06	2.3e−4
20	7103987	A	C	0.33	0.27	0.07	1.3e−4
29	2491812	A	G	0.17	−0.32	0.09	1.9e−4

The effect sizes of SNP are in one unit of natural log transformed and standardized microbiota composition.