Seeds of native alpine plants host unique microbial communities embedded in cross-kingdom networks

Microbiome

Table 1 Abundance of core OTUs in all seeds and percentage of OTUs exclusive for the core microbiomes of each plant genotype

		A. major	E. rostkoviana	G. asclepiadea	G. germanica	H. quadrifida	P. palustris	R. glacialis	S. lucida
Bacterial core OTUs shared by all seeds*	Tatumella sp.	0.21	1.94	6.06	24.60	0.95	0.69	75.84	2.42
	Pseudomonas sp.	13.84	5.39	29.51	0.32	32.27	5.40	0.06	7.63
	Pseudomonas putida	0.17	0.26	1.73	27.40	9.48	0.14	0.24	0.65
	Pseudomonas fluorescens	0.41	0.47	2.02	0.49	12.43	0.34	0.62	2.64
	Serratia liquefaciens	0.75	1.15	0.77	0.37	1.11	0.72	1.35	4.17
	Burkholderia sp.	0.16	0.28	0.30	0.10	0.35	0.34	0.73	2.80
	Bacillus subtilis	0.20	0.19	0.23	0.08	0.34	0.28	0.70	0.13
	Pseudomonas protegens	0.13	0.26	0.16	0.17	0.62	0.08	0.12	0.21
	Curvibacter gracilis	0.05	0.07	0.09	0.03	0.14	0.10	0.17	0.61
	Pelomonas sp.	0.02	0.04	0.04	0.01	0.06	0.05	0.15	0.64
	Acinetobacter calcoaceticus	0.04	0.07	0.03	0.02	0.05	0.04	0.05	0.09
Percentage of bacterial OTUs unique for the plant´s core microbiome**		44.1	65.7	38.0	31.3	11.4	21.7	15.4	5.2
Fungal core OTUs shared by all seeds*	Cladosporium cladosporioides	7.31	27.37	14.55	46.33	2.41	3.59	25.77	6.53
	Cryptococcus victoriae	15.14	1.78	8.05	4.64	28.21	14.34	0.02	8.03
	Davidiella tassiana	6.40	7.14	14.79	15.52	12.34	14.54	1.18	5.07
	Boeremia exigua var. populi	0.46	10.95	3.11	0.14	1.98	29.00	0.03	19.77
	Epicoccum nigrum	4.94	8.76	1.45	2.20	6.53	1.16	1.57	11.40
Percentage of fungal OTUs unique for the plant’s core microbiome**		33.1	35.7	76.1	12.5	31.0	12.7	23.5	26.5

*Numbers denote for relative abundance (%) in seeds of each plant genotype. Taxonomy was assigned at species level to core OTUs using NCBI BLAST alignment tool
**Percentage of OTUs occurring in all replicates of the respective plant species, while being absent in the core microbiomes of all other plant species

ISSN: 2049-2618