Liu Hong-Mei, Shen Jian-Yong, Liang Zhen-Long, Peng Feng, Wang Wei-Zhen, Yang Zu-Wei, Wang Shuang, Parris Barbara
CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Yunnan 666303, China.
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Yunnan 666303, China.
PhytoKeys. 2019 Aug 29;130:115-133. doi: 10.3897/phytokeys.130.33979. eCollection 2019.
Our understanding of the flora of China has greatly improved during the last 100 years but effective management of the rich biodiversity and unique natural resources requires resolving the taxonomic limitations of existing treatments. Here, we focus on the epiphytic genus with special emphasis on the occurrences in Hainan and Yunnan of mainland China. By combining fieldwork, herbarium studies, and DNA barcoding we test the hypothesis that this genus is represented by more than one species in China. Our integrative results show the Yunnan accessions are distinct from those in Hainan in both phenotypic and genotypic variation. The Yunnan accessions belong to , whereas the Hainan accessions represent a distinct species displaying the morphological characteristics of . Genotypic evidence suggests the occurrence of cryptic diversity among accessions with the morphology of . In summary, the study contributes to the crucial assessment of the plant diversity in Yunnan and illustrates the importance of integrating collection efforts and DNA barcoding approaches to enable effective assessment of the epiphytic diversity of Yunnan.
在过去的100年里，我们对中国植物区系的了解有了很大的提高，但要有效管理丰富的生物多样性和独特的自然资源，就需要解决现有分类处理中的分类学局限性。在这里，我们专注于附生植物属，特别强调其在中国海南和云南的分布情况。通过结合野外调查、标本馆研究和DNA条形码技术，我们检验了该属在中国由多个物种代表的假设。我们的综合结果表明，云南的样本在表型和基因型变异上与海南的样本不同。云南的样本属于 ，而海南的样本代表一个具有 形态特征的独特物种。基因型证据表明，具有 形态的样本中存在隐性多样性。总之，该研究有助于对云南的植物多样性进行关键评估，并说明了整合采集工作和DNA条形码方法以有效评估云南附生植物多样性的重要性。
