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Table 3 Characteristics of dominant bacterial phyla as measured by Illumina iTag method during this study

From: Microbiomes of the dust particles collected from the International Space Station and Spacecraft Assembly Facilities

  ISS HEPA total ISS HEPA viable ISS Debris total ISS Debris viable JPL-SAF total JPL-SAF viable JPL-103 total JPL-103 viable
Total number of sequences 553,176 587,569 1,148,047 1,116,419 1,029,984 1,472,777 489,047 397,607
Percentage of sequences that belong to three dominant phyla 90.92 99.65 92.35 98.26 80.25 81.84 87.96 90.46
Actinobacteria
 Percentage of sequences 63.28 95.28 40.52 66.54 28.76 25.25 23.79 21.46
 Number of genera 78 55 62 38 122 116 103 71
 Number of dominant genera (>100 sequences) 16 7 28 16 71 76 28 24
Firmicutes
 Percentage of sequences 24.83 3.97 45.67 28.48 7.70 11.05 6.60 0.98
 Number of genera 118 67 100 31 152 150 101 53
 Number of dominant genera (>100 sequences) 50 17 65 18 53 69 15 7
Proteobacteria
 Percentage of sequences 2.81 0.41 6.16 3.24 43.80 45.55 57.57 68.02
 Number of genera 95 65 89 30 189 191 143 92
 Number of dominant genera (>100 sequences) 22 7 49 10 96 104 56 29