TABLE 1.

Diatom microbiome samples analyzed^a

Sampleb	Diatom species	Collection site	Collection date	Time (days)c
1.1	Astrosyne radiata	Gab Gab, Guam	June 2008	183
1.2				330
1.3				751
1.4				2,727
2.1	Roundia cardiophora	Achang, Guam	June 2008	347
2.2				775
3.1	Florella pascuensis	Agat, Guam	June 2008	78
3.2				367
4	Pseudictyota dubia	San Pedro, California	June 2009	438
5	Striatella unipunctata	Florida Bay, Florida	March 2010	674
6	Hanicella moenia	Gab Gab, Guam	August 2011	486
7	Paralia cf. longispina	Gab Gab, Guam	August 2011	177
8	Astrosyne radiata	Gab Gab, Guam	July 2013	283
9	Neosynedra provincialis	Pickle’s Reef, Florida	April 2014	505
10	Leptocylindrus danicus	Gulf of Mexico, off Texas coast	August 2011	1,571

^aMore detailed collection data, including latitude and longitude of collection sites, can be found in Table S1.

^bDifferent cultures and successive time points for a given culture are represented; e.g., samples 2.1 and 2.2 are samples from culture 2 taken at different time points.

^cNumber of days elapsed between initial diatom cultivation and pellet harvesting for DNA extraction.