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Table 1 Summary of study experiments

From: Latitude in sample handling and storage for infant faecal microbiota studies: the elephant in the room?

Experiment

Subject population

Faecal sample source

DNA extraction protocol

Sequencing region

Sequencing platform

Variation between extractions

Term infants

Infant 14

2

Vv4

Illumina Miseq

Effects of varied weight

Premature infants

Infants 1, 2, 3 and 4

2

V3–V5

Roche 454 GS FLX

Effects of long term freezing

Premature infants

Infants 5, 6, 7 and 8

1

V4

Illumina Miseq

Effects of room temperature storage

Premature and term infants

Infants 5, 6, 7, 8, 9, 10, 11, 12 and 13

2

V4

Illumina Miseq

Effects of mailing samples

Term infants

Infants 9, 10, 11, 12 and 13

2

V4

Illumina Miseq

  1. Experiments performed to determine the effects of different sources of variation. Term infant faecal communities represent more complex microbial mixtures, whilst premature faecal samples harbour more simple communities and are obtained in very limited quantities