Multi-Niche Microbiota of a Desert-Adapted Lizard: 16S rRNA Profiling of Teratoscincus roborowskii Endemic to the Turpan Depression in Northwest China

The microbial communities of desert-dwelling reptiles, such as lizards, are vital for their health and adaptation, yet remain poorly understood. This study provides the first detailed analysis of the microbiome of the Turpan Wonder Gecko (<i>Teratoscincus roborowskii</i>), using 16S rRNA sequencing on samples from its gut, oral cavity and environment in China's Turpan Depression. The results showed distinct microbial profiles across these niches. Key findings include a highly diverse gut microbiota, primarily belonging to the phyla Bacteroidota and Bacillota, as well as thermophilic Thermodesulfobacteriota, which may enhance heat tolerance. The oral microbiota was rich in Pseudomonadota, likely aiding its omnivorous diet. Environmental samples were mostly Cyanobacteriota, typical of desert soils. Gut microbes appear to be specialized in carbohydrate metabolism, while oral microbes may assist in xenobiotic degradation. These results emphasize the important role that the gecko's microbial communities play in its survival in harsh desert conditions.