5 CONCLUSION
Clonal architectures and diversity spatial pattern of different C. udensis ploidies were the result of long-term adaptations to different habitats. Both the diploids and tetraploids adopted reproductive trade-offs to respond to different environments. As an autotetraploid, the tetraploids through high clonal reproductive rates and genetic diversity adapted to completely different habitats from their diploid ancestors. The diversity model of two C. udensis ploidies were anticipant to be consistent with the hypothesis about the inter-polyploid. The results in this study will shed light on the evolution of the intra-polyploid and be helpful to better elucidating the adaptation mechanisms of facultative plant clones.