干旱区生态环境知识资源中心(Arid): Phylogenetic relationships and biogeographic history of the unique Saxifraga sect. Irregulares (Saxifragaceae) from eastern Asia

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DOI	10.1111/jse.12547
	Phylogenetic relationships and biogeographic history of the unique Saxifraga sect. Irregulares (Saxifragaceae) from eastern Asia
	Zhang, Meng-Hua 1,2,3; Wang, Chao-Yong 1; Zhang, Cheng 1; Zhang, Dai-Gui 1; Li, Ke-Gang 1; Nie, Ze-Long 1; Meng, Ying 1
通讯作者	Meng, Ying
来源期刊	JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN	1674-4918
EISSN	1759-6831
出版年	2020
卷号	58 期号:6 页码:958-971
英文摘要	Saxifraga L. is the largest genus in Saxifragaceae and a characteristic component of the herbaceous flora of the temperate and alpine mountains in the Northern Hemisphere. Section Irregulares is a small group of 15-20 species, representing one of the early-diverged lineages in the genus characterized with unique zygomorphic flowers. We used both nuclear internal transcribed spacer and chloroplast DNA regions (psbA-trnH, trnL-F, and matK) to reconstruct its species relationships, estimate divergence times, and infer its historical biogeography. Our phylogenetic results corroborate the monophyly of sect. Irregulares and its sister relationship to sect. Heterisia from North America. The section was well resolved into two lineages corresponding to their morphological features and biogeographic distributions. One represents ser. Stoloniferae including S. stolonifera Curtis and S. nipponica Makino with long-creeping stolons/rhizomes and small petals with spots and the other comprises the remaining taxa (ser. Rufescentes) which lack long-creeping rhizomes. Spots on leaves (abaxially spotted vs. abaxially without spots) and spots on petals (without spots vs. with spots) are inferred to be phylogenetically informative within ser. Rufescentes. Divergence time estimates and ancestral area analysis suggested a western North American origin of sect. Irregulares with migration into East Asia by way of the Bering land bridge in the Middle Oligocene. The development of drying and desertification belt in the late Miocene could have played an important role in the subsequent restriction and separation of the north and south lineages within eastern Asia.
英文关键词	eastern Asia historical biogeography Saxifraga sect Irregulares Saxifragaceae
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000499722000001
WOS关键词	MOLECULAR PHYLOGENETICS ; EVOLUTIONARY HISTORY ; NORTH-AMERICA ; GENUS ; DISJUNCT ; TAXA ; DIVERSIFICATION ; DIVERGENCE ; MORPHOLOGY ; SPECIATION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-12-02
来源机构	中国科学院植物研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311527
作者单位	1.Jishou Univ, Coll Biol Resources & Environm Sci, Key Lab Plant Resources Conservat & Utilizat, Jishou 416000, Hunan, Peoples R China; 2.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China; 3.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Meng-Hua,Wang, Chao-Yong,Zhang, Cheng,et al. Phylogenetic relationships and biogeographic history of the unique Saxifraga sect. Irregulares (Saxifragaceae) from eastern Asia[J]. 中国科学院植物研究所,2020,58(6):958-971.
APA	Zhang, Meng-Hua.,Wang, Chao-Yong.,Zhang, Cheng.,Zhang, Dai-Gui.,Li, Ke-Gang.,...&Meng, Ying.(2020).Phylogenetic relationships and biogeographic history of the unique Saxifraga sect. Irregulares (Saxifragaceae) from eastern Asia.JOURNAL OF SYSTEMATICS AND EVOLUTION,58(6),958-971.
MLA	Zhang, Meng-Hua,et al."Phylogenetic relationships and biogeographic history of the unique Saxifraga sect. Irregulares (Saxifragaceae) from eastern Asia".JOURNAL OF SYSTEMATICS AND EVOLUTION 58.6(2020):958-971.