Phylogenetic placement of the enigmatic and critically endangered genus Saniculiphyllum (Saxifragaceae) inferred from combined analysis of plastid and nuclear DNA sequences

CORC > 昆明植物研究所 > 中国科学院昆明植物研究所 > 中国科学院东亚植物多样性与生物地理学重点实验室

	Phylogenetic placement of the enigmatic and critically endangered genus Saniculiphyllum (Saxifragaceae) inferred from combined analysis of plastid and nuclear DNA sequences
	Xiang, Chun-Lei1 ; Gitzendanner, Matthew A.2; Soltis, Douglas E.2; Peng, Hua1 ; Lei, Li-Gong 1
刊名	MOLECULAR PHYLOGENETICS AND EVOLUTION
	2012-08-01
卷号	64 期号:2 页码:357-367
关键词	China Endemic Heucheroid clade Saniculiphyllum guangxiense Saxifragales Phylogenetic analysis
ISSN号	1055-7903
通讯作者	Lei, LG (reprint author), Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, 132 Lanhei Rd, Kunming 650201, Yunnan, Peoples R China,xiangchunlei@mail.kib.ac.cn ; magitz@botany.u-fl.edu ; dsoltis@botany.ufl.edu ; hpeng@mail.ki-b.ac.cn ; ligonglei@mail.kib.ac.cn
英文摘要	Saniculiphyllum, a monotypic genus distributed in Southwest China, was thought to be extinct before our recent rediscovery. The taxonomic position of this genus has been enigmatic ever since its publication. It was originally treated as the only member of a distinct tribe Saniculiphylleae in the family Saxifragaceae. Some proposed a new family, Saniculophyllaceae, to accommodate this genus, although its affinities are clearly with members of Saxifragaceae. Here we analyzed six DNA regions, the nuclear ribosomal ITS and 26S rDNA and the plastid rbcL, matK, trnL-trnF, psbA-trnH genes, spacers, and intron to explore the phylogenetic position of Saniculiphyllum within Saxifragaceae. The combined nuclear and chloroplast dataset includes 63 ingroup species, representing all genera but Hieronymusia in the family. Results from likelihood, parsimony and Bayesian phylogenetic methods corroborate earlier results. Two clades of Saxifragaceae, the Heucheroid and Saxifragoid clades, were recovered. The topologies obtained from different analyses confirm the placement of Saniculiphyllum in Saxifragaceae, but our analyses reveal that Saniculiphyllum is embedded within the large Heucheroid clade. However, the closest relatives of Saniculiphyllum within the Heucheroid clade remain unclear. Combined with morphological data, our results suggest that Saniculiphyllum should best be regarded as a highly distinctive lineage within the Heucheroid clade of Saxifragaceae. Morphological novelties and conservation status of Saniculiphyllum are also presented. (C) 2012 Elsevier Inc. All rights reserved.
学科主题	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
类目[WOS]	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
研究领域[WOS]	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
关键词[WOS]	HEUCHERA GROUP SAXIFRAGACEAE ; CHLOROPLAST-DNA ; MOLECULAR-DATA ; CHRYSOSPLENIUM SAXIFRAGACEAE ; MITELLA SAXIFRAGACEAE ; SENSU-STRICTO ; RIBOSOMAL DNA ; MIXED MODELS ; 18S RDNA ; RBCL
收录类别	SCI
资助信息	The authors are grateful to Xi Lu, Zhi-Jian Yin, Hong-Jing Dong, Qi-Liang Gan, and Yong-Zuo Shi for their assistance in sample collection. We also thank Dr. Amy Litt and two anonymous reviewers for their constructive suggestions that greatly improved the paper. The research was supported by the National Natural Science Foundation of China (No. 30770152) granted to LGL and partially financed by the Angiosperm Tree of Life Project (NSF EF-0431266) to DES.
语种	英语
WOS记录号	WOS:000305374600010
公开日期	2014-04-02
内容类型	期刊论文
源URL	[http://ir.kib.ac.cn/handle/151853/17631]
专题	昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Yunnan, Peoples R China 2.Univ Florida, Dept Biol, Gainesville, FL 32611 USA
推荐引用方式 GB/T 7714	Xiang, Chun-Lei,Gitzendanner, Matthew A.,Soltis, Douglas E.,et al. Phylogenetic placement of the enigmatic and critically endangered genus Saniculiphyllum (Saxifragaceae) inferred from combined analysis of plastid and nuclear DNA sequences[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2012,64(2):357-367.
APA	Xiang, Chun-Lei,Gitzendanner, Matthew A.,Soltis, Douglas E.,Peng, Hua,&Lei, Li-Gong.(2012).Phylogenetic placement of the enigmatic and critically endangered genus Saniculiphyllum (Saxifragaceae) inferred from combined analysis of plastid and nuclear DNA sequences.MOLECULAR PHYLOGENETICS AND EVOLUTION,64(2),357-367.
MLA	Xiang, Chun-Lei,et al."Phylogenetic placement of the enigmatic and critically endangered genus Saniculiphyllum (Saxifragaceae) inferred from combined analysis of plastid and nuclear DNA sequences".MOLECULAR PHYLOGENETICS AND EVOLUTION 64.2(2012):357-367.