High Genetic Diversity vs. Low Genetic Differentiation in Nouelia insignis (Asteraceae), a Narrowly Distributed and Endemic Species in China, Revealed by ISSR Fingerprinting

摘要

• Background and Aims Nouelia insignis Franch., a monotypic genus of the Asteraceae, is an endangered species endemic in Yunnan and Sichuan Provinces of China. Most of the populations are seriously threatened. Some of them are even at the brink of extinction. In this study, the genetic diversity and differentiation between populations of this species were examined in two drainage areas.