关于iFlora核心数据建设中的一些思考

doi:10.7677/ynzwyj201313166

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

关于iFlora核心数据建设中的一些思考

杭悦宇, 孙小芹, 李密密

江苏省中国科学院植物研究所江苏省植物迁地保护重点实验室，江苏南京210014

收稿日期:2013-08-30 出版日期:2013-11-25 发布日期:2013-09-06
基金资助:
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)

Some Considerations on the Establishment of an Essential Database in iFlora

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

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)

摘要/Abstract

摘要：

物种是iFlora数据采集的基本对象，但我们面临的植物是一个庞大、复杂的体系，没有正确的分类认识和物种鉴定方法，就不能保证iFlora的准确构建。目前植物中存在着不少数量的疑难种、争议种，已定种分类界限的准确性以及复杂的种下分类单位，都给iFlora的构建带来了较大的问题。本文以作者近年来研究的薯蓣科（Dioscoreaceae）薯蓣属（Dioscorea L.）、蓼科（Polygonaceae）何首乌（Polygonum multiflorum Thuna.）、唇形科（Lamiaceae）夏枯草属（Prunella L.）等为主要例子，对iFlora核心数据中的DNA条形码信息及基础数据中形态学分类信息的建设提出几点思考。重点提出，关注物种尤其是广布种，由于其分布范围广泛，在不同分布区个体常表现出连续变化特征，而实际工作中往往会出现忽略连续变化特征而把1个种在分布区端点的居群鉴定为不同种的问题；因此应关注种的居群DNA条形码的变异幅度。

关键词: iFlora, Essential database, Species limitation, DNA barcodes, Variation range

Abstract:

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

中图分类号:

Q 948.2

杭悦宇, 孙小芹, 李密密. 关于iFlora核心数据建设中的一些思考[J]. Plant Diversity, 2013, 35(6): 701-705.

HANG Yue-Yu, SUN Xiao-Qin, LI Mi-Mi. Some Considerations on the Establishment of an Essential Database in iFlora[J]. Plant Diversity, 2013, 35(6): 701-705.

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关于iFlora核心数据建设中的一些思考

Some Considerations on the Establishment of an Essential Database in iFlora

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