Additional file 1: Fig. S1. Map showing sampling sites in the Qinghai-Tibetan Plateau. Fig. S2. Comparison of relative abundance between rhizosphere soil (soil) and root endosphere (root) samples for bacteria and fungi at phyla level. Relative abundance measured in soil and root samples across the 58 A.tanguticus populations was aggregated at the phyla level. The differences between compartments were determined using Wilcoxon rank-sum test. The asterisk (*) indicates significant differences. Fig. S3. Boxplots showing the βNTI values in bacterial (a) and fungi (b) community. Statistical significance was determined by the Wilcoxon rank-sum test. The dotted line indicates − 2 and 2. The upper number represents a deterministic process, and the lower number represents a stochastic process. The significance levels are as follows: P < 0.05, one asterisk (*); P < 0.01, two asterisks (**); P < 0.001, three asterisks (***). Soil, rhizosphere soil; Root, root endosphere. Table S1. Primers utilized in this study to profile bacterial and fungal communities in soil and root samples. Table S2. Root bacterial network topological parameters
Funding
the second batch foundation of central forestry Development and Reform in 2021 the innovation integration and demonstration of key technologies for the protection of endemic, rare and endangered plants in Qinghai the second comprehensive scientific investigation and research on the Qinghai-Tibet Plateau