design: Genomic DNA was extracted using the  Quick-DNA Fungal/Bacterial Miniprep Kit (Zymo Research, USA) according to the manufacturers instructions, then it was quantified by a Qubit 2.0 fluorometer (dsDNA HS assay, Invitrogen, USA). The nucleotide sequence of the L. gasseri lg94 genome was obtained by sequencing on the Illumina NextSeq550 platform using the Illumina DNA Prep Tagmentation, IDT for Illumina DNA/RNA UD Indexes Set Tagmentation, and NextSeq 500/550 High Output Kit v2.5 (300 Cycles) library preparation reagents according to the manufacturer's recommendations.