Infant and parent gut metagenomes, Hong Kong, longitudinal cohort
MOMmy-Microbiome_Epigenome_Neurodevelopment
5,328 gut metagenome samples from infants and parents in the MOMmy cohort, Hong Kong, collected as part of a longitudinal cohort study. machine-written summary
Sequencing depth per sample · this project all projects
Sampling design and relatedness
longitudinalfamiliesfather–childmother–infant
925 of 2,754 people sampled more than once (3,490 samples; median 4, up to 4 per person) · follow-up median 12 mo (max 12 mo) · median interval between samples 4 mo(time from visit codes mapped to the stated schedule).
Schedule stated by the source: “Pregnancy, delivery, and postnatal months 1, 2, 6, 12, 18, and years 2 to 7” (time origin: delivery); stated follow-up 7.0 y.
Each row is one person (36 shown of 925); dots are samples at days since that person's first sample; rows of one family are adjacent and coloured by role (mother, father, child, twin).
969 families (MOMmy cohort): 968 mothers (MT3), 817 fathers, 969 infants (BD0-BM12); 816 families with both parents · 969 families with 2,763 sampled people (969 with a parent and a child).
808 × mother + father + child
151 × mother + child
8 × mother + father + child×2
1 × mother + child×2
1 × father + child
motherfatherchild · circles are people (pale = no sequenced sample), arrows run donor → recipient and parent → child, curved lines join twins, partners and siblings, squares are shared settings or families without recorded roles. Shown: 24 of 969 families (one per family structure, then more). 2,754 people in the project overall.
Bifidobacterium 27.6%Bacteroides 7.8%Phocaeicola 7.6%Escherichia 5.2%Faecalibacterium 3.3%Prevotella 2.7%Streptococcus 2.6%Enterococcus 2.6%Klebsiella 2.4%Blautia_A 2.0%Mediterraneibacter 1.6%Collinsella 1.6%not assigned to a genus 3.2%other genera 29.8%
Genera, mean relative abundance over 4,593 profiled gut samples of this project (Sandpiper SingleM profiles, GTDB R232; low-depth and non-metagenome profiles left out).
body sitestudy.description · “repository of 5,328 gut metagenomes from 969”
body siteexternal_curation.infant_catalog · “infant triage verdict include (gut/stool scope)”
life stageexternal_curation.infant_catalog · “infant triage verdict include (0-3 y scope)”
life stagestudy.description · “metagenomes from 969 infants and 1,785 parents”
Evidence examples (one per field × route)
sample
field
value
route
conf.
source
quote
SAMEA121698248
collection_date
2019-09/2024-03
R3
0.70
paper.fulltext.methods
The recruitment of pregnant women at trimesters 1, 2, or 3 started since September 2019
SAMEA121698248
country
HK
R1
0.90
biosample_attr
Hong Kong
SAMEA121698248
family_id
508
R1
0.70
sample.name_rule:TITLE
508-BM6
SAMEA121698248
family_role
child
R1
0.70
sample.name_rule:TITLE
508-BM6
SAMEA121698248
subject_id
508-B
R1
0.70
sample.name_rule:library_name
508-BM6
SAMEA121698250
subject_id
999-M
R1
0.70
sample.name_rule:title
999-MT3
SAMEA121698248
timepoint_label
BM6
R1
0.70
sample.name_rule:title
508-BM6
Sequencing
5,328 runs over 5,328 samples · mean 6.57 Gbp per run (median 6.37 Gbp, total 35,022.59 Gbp; 5,328 runs with a base count) · layout PAIRED 5,328 · platform ILLUMINA 5,328 · models Illumina NovaSeq 6000 (5,328) · 86% of runs with a Sandpiper profile · first public 2026-02-22 – 2026-02-25
Authors (0)
No author record.
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