Eurasian origin, boreotropical migration and transoceanic dispersal in the pantropical fern genus Diplazium (Athyriaceae)

doi:10.1111/jbi.12551

	Eurasian origin, boreotropical migration and transoceanic dispersal in the pantropical fern genus Diplazium (Athyriaceae)
	Wei, Ran ; Xiang, Qiaoping ; Schneider, Harald 1; Sundue, Michael A.; Kessler, Michael 3; Kamau, Peris W.; Hidayat, Arief 5; Zhang, Xianchun
	2015
发表期刊	JOURNAL OF BIOGEOGRAPHY
ISSN	0305-0270
卷号	42 期号:10 页码:1809-1819
摘要	AimGondwanan vicariance, boreotropical migration and long-distance dispersal have been posited as alternative hypotheses explaining the tropical distribution patterns and diversifications in many fern groups. Here, the historical biogeography of Diplazium is reconstructed to evaluate the impact of these biogeographical processes in shaping the modern tropical disjunctions. LocationWorld-wide with a focus on tropical forest habitats. MethodsDivergence times were estimated by analysing nucleotide sequences of seven plastid DNA regions (atpA, atpB, matK, rbcL, rps4, rps4-trnS and trnL-F) from 123 species of Diplazium and its allied genera, using a Bayesian relaxed clock method and three fossil calibrations. The ancestral areas were reconstructed using the likelihood dispersal-extinction-cladogenesis (DEC) approach. ResultsThe crown group of Diplazium was estimated to have originated in Eurasia and undergone an initial diversification in the Northern Hemisphere around 41.7Ma [95% highest posterior density (HPD): 34-49Ma] during the Eocene. Two disjunct events between the Old and New World were identified: one in subgenus Diplazium around the Eocene-Oligocene boundary (31.2Ma, 95% HPD: 25-38Ma), and the other in subgenus Callipteris during the middle Miocene (12.6Ma, 95% HPD: 15-23Ma). Furthermore, Palaeotropical disjunctions in subgenus Callipteris are indicative of multiple dispersal events during the Miocene. Main conclusionsThe evolutionary history of Diplazium involves a variety of biogeographical scenarios. Early diversification of Diplazium in the Northern Hemisphere during the Eocene corresponds with the migration from Eurasia to North America over land bridges as a member of the boreotropical flora. The current tropical amphi-Pacific disjunctions in subgenus Diplazium can be better explained by the disruption of boreotropical belt, however, long-distance dispersal between Eurasia and tropical America cannot be ruled out. Island-hopping and trans-Pacific dispersals followed by speciation characterize the disjunctions and diversifications of subgenus Callipteris during the Neogene. Gondwanan vicariance is not supported by any of our results.
关键词	Boreotropical hypothesis DEC fossil record Gondwanan vicariance historical biogeography island-hopping long-distance dispersal tropical disjunction
学科领域	Ecology ; Geography, Physical
DOI	10.1111/jbi.12551
收录类别	SCI
语种	英语
WOS关键词	GEOGRAPHIC RANGE EVOLUTION ; HISTORICAL BIOGEOGRAPHY ; NORTHERN-HEMISPHERE ; MOLECULAR PHYLOGENY ; PLANT DISPERSAL ; INFERENCE ; ATLANTIC ; DIVERSIFICATION ; VICARIANCE ; SEQUENCES
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000361181900002
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1365-2699
资助机构	National Science Foundation of China [31170199] ; External Cooperation Program of Bureau of International Co-operation Chinese Academy of Sciences [GJHZ201321]
作者邮箱	zhangxc@ibcas.ac.cn
引用统计	被引频次：63[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25672
专题	系统与进化植物学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 2.Nat Hist Museum, Dept Life Sci, London SW7 5BD, England 3.Sundue, Michael A.] Univ Vermont, Dept Plant Biol, Pringle Herbarium, Burlington, VT 05405 USA 4.Univ Zurich, Inst Systemat Bot, CH-8008 Zurich, Switzerland 5.Kamau, Peris W.] Natl Museums Kenya, Dept Bot, Nairobi, Kenya 6.Indonesian Inst Sci LIPI, Bot Div, Cibinong 16911, Indonesia
推荐引用方式 GB/T 7714	Wei, Ran,Xiang, Qiaoping,Schneider, Harald,et al. Eurasian origin, boreotropical migration and transoceanic dispersal in the pantropical fern genus Diplazium (Athyriaceae)[J]. JOURNAL OF BIOGEOGRAPHY,2015,42(10):1809-1819.
APA	Wei, Ran.,Xiang, Qiaoping.,Schneider, Harald.,Sundue, Michael A..,Kessler, Michael.,...&Zhang, Xianchun.(2015).Eurasian origin, boreotropical migration and transoceanic dispersal in the pantropical fern genus Diplazium (Athyriaceae).JOURNAL OF BIOGEOGRAPHY,42(10),1809-1819.
MLA	Wei, Ran,et al."Eurasian origin, boreotropical migration and transoceanic dispersal in the pantropical fern genus Diplazium (Athyriaceae)".JOURNAL OF BIOGEOGRAPHY 42.10(2015):1809-1819.

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