中文摘要：

Sinomanglietia glauca 是在 1990 年代从江西省描述的非常危及的种。最近，二张人口从西方湖南省的 Yongshun 县被发现，在江西的大约 450 km 离开那些。因为新调查结果和对以前的研究的 RAPD 和 ISSR 标记固有的差的重制度，这稀罕的种的人口结构四张记录人口与叶绿体 PCR-SSCP (搁浅单人赛的符合构造多型性) 被重新分析，包括所有。结果证明二不同 haplotypes 独立描绘了江西和湖南人口，没有基因变化发生在区域以内。我们要求了这个令人吃惊的模式可能源于产地破碎和人口统计的瓶颈在期间或在第四级的冻结成冰以后。根据显著基因结构，二个 evolutionarily 重要的单位(ESU ) 为 S 的有效保存被推荐。glauca。

英文摘要：

Sinomanglietia glauca is a critically endangered species described from Jiangxi Province in the 1990s. Recently two populations were discovered from Yongshun County of west Hunan Province, about 450 km away from those in Jiangxi. Because of the new findings and the poor reproducibility inherent to RAPD and ISSR markers of previous studies, the population structure of this rare species was reanalyzed with chloroplast PCR-SSCP （single-stranded conformation polymorphism）, including all of four recorded populations. The results showed that two distinct haplotypes characterized Jiangxi and Hunan populations separately, with no genetic variation occurring within regions. We postulated that this surprising pattern might result from habitat fragmenta- tion and demographic bottlenecks during and/or after the Quaternary glaciation. On the basis of the pronounced genetic structure, two evolutionarily significant units （ESUs） were recommended for effective conservation of S. glauca.