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East Asian origins of European holly oaks (Quercus section Ilex Loudon) via the Tibet-Himalaya
Jiang, Xiao-Long; Hipp, Andrew L.; Deng, Min; Su, Tao; Zhou, Zhe-Kun; Yan, Meng-Xiao
2019
Source PublicationJOURNAL OF BIOGEOGRAPHY
ISSN0305-0270
IssuexPages:-
Abstract

Aim Many subtropical organisms exhibit an East Asian-Tethyan disjunction, a distribution split between East Asia and the Mediterranean. The underlying mechanisms and timing have remained unclear to date. The evolutionary history of Quercus section Ilex Loudon, a representative East Asian-Tethyan disjunct lineage with a rich and widespread fossil record, was investigated to understand the key drivers of this disjunction. Location Eurasia. Methods The phylogeny of Quercus section Ilex was reconstructed using RAD-seq. Divergence times were estimated based on three fossil calibrations. Ancestral range and niche were reconstructed on the calibrated tree to infer the timing of transitions in geographic distributions and niche. Convergence in ecological space was estimated by fitting alternative multiple-regime Ornstein-Uhlenbeck models. Leaf shape affinities among extant and fossil taxa of section Ilex were assessed using geometric morphometric approaches. Results Six clades were well resolved in section Ilex. Ancestral range reconstruction and divergence time dating suggest a wide distribution along the East Tethys seaway, with initial divergence at the mid-Eocene, and all six clades originating before the Miocene. The section dispersed from East Asia to the Mediterranean at the Eocene-Oligocene boundary. A shift toward higher elevations was detected in the Himalayan clade during the middle or late Miocene. European fossil lineages during the early Miocene differ in leaf morphology from later lineages, which we infer to be a consequence of adaptive differentiation or species turnover. Main conclusions Quercus section Ilex was widespread along the East Tethys seaway from the middle Eocene onward. The European holly oaks originated from an East Asian ancestral lineage that dispersed to Europe via the Tibet-Himalaya corridor in the Oligocene. Lowlands along the margins of the Himalayas and through an Oligocene Tibetan valley served as the dispersal route(s) for these species. Changing climates drove Miocene extinction and local adaptation of European lineages.

KeywordDISPERSAL-VICARIANCE ANALYSIS FOUNDER-EVENT SPECIATION MADREAN-TETHYAN HISTORICAL BIOGEOGRAPHY GEOGRAPHIC RANGE EVOLUTION FAGACEAE UPLIFT BIODIVERSITY DISJUNCTIONS
Subject AreaEnvironmental Sciences & Ecology ; Physical Geography
DOI10.1111/jbi.13654
Indexed BySCI
Language英语
WOS IDWOS:000477284700001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/11443
Collection古生态研究组
Affiliation1.[Jiang, Xiao-Long
2.Deng, Min
3.Chinese Acad Sci, Shanghai Chenshan Plant Sci Res Ctr, Shanghai Chenshan Bot Garden, Shanghai, Peoples R China
4.Su, Tao
5.Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Nay Pyi Taw, Myanmar
6.[Hipp, Andrew L.] Morton Arboretum, Lisle, IL USA
7.[Hipp, Andrew L.] Field Museum, Chicago, IL USA
8.[Su, Tao
9.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Xiao-Long,Hipp, Andrew L.,Deng, Min,et al. East Asian origins of European holly oaks (Quercus section Ilex Loudon) via the Tibet-Himalaya[J]. JOURNAL OF BIOGEOGRAPHY,2019(x):-.
APA Jiang, Xiao-Long,Hipp, Andrew L.,Deng, Min,Su, Tao,Zhou, Zhe-Kun,&Yan, Meng-Xiao.(2019).East Asian origins of European holly oaks (Quercus section Ilex Loudon) via the Tibet-Himalaya.JOURNAL OF BIOGEOGRAPHY(x),-.
MLA Jiang, Xiao-Long,et al."East Asian origins of European holly oaks (Quercus section Ilex Loudon) via the Tibet-Himalaya".JOURNAL OF BIOGEOGRAPHY .x(2019):-.
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