Plant Diversity ›› 2013, Vol. 35 ›› Issue (6): 701-705.DOI: 10.7677/ynzwyj201313166

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Some Considerations on the Establishment of an Essential Database in iFlora

 HANG  Yue-Yu, SUN  Xiao-Qin, LI  Mi-Mi   

  1. Jiangsu Province and the Chinese Academy of SciencesJiangsu Province Key Laboratory for Plant
    Exsitu Conservation, Institute of Botany, Naniing 210014, China
  • Received:2013-08-30 Online:2013-11-25 Published:2013-09-06
  • Supported by:

    中国科学院国家重大科学装置开放研究经费 (2009LSFGBOWS01);DUS测试品种信息DNA测试技术研究 (公益性行业 (农业) 科研专项2009030080205);江苏省自然科学基金重点项目 (BK2005206);科技部科技基础性工作专项项目 (2013FY112600)


 Because of the complexity of plant diversity, we cannot guarantee the accuracy of an iFlora if there is no proper understanding of methods of species identification and classification. The existence of a large number of “difficult” and controversial species, as well as taxonomic variation within species, will further add problems to the construction of such a flora. In this paper, we consider DNA barcoding information and morphological classification with reference to our recent studies of Dioscorea L.(Dioscoreaceae), Polygonum multiflorum Thuna. (Polygonum), Prunella L.(Lamiaceae). We point out that for widely distributed species in these groups we might often ignore continuous variation that links what might be described as different species, but which are better considered as divergent populations of the same species. In such cases, variation in DNA barcodes could exist between populations of one species, which might cause confusion in species identification in an iFlora.

Key words: iFlora, Essential database, Species limitation, DNA barcodes, Variation range

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