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

doi:10.1016/j.ympev.2012.04.010

	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
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
	2012-08-01
发表期刊	MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN	1055-7903
卷号	64 期号:2 页码:357-367
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.
关键词	China Endemic Heucheroid Clade Saniculiphyllum Guangxiense Saxifragales Phylogenetic Analysis
学科领域	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
DOI	10.1016/j.ympev.2012.04.010
收录类别	SCI
语种	英语
WOS记录号	WOS:000305374600010
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/17631
专题	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.

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