Molecular phylogenetics and biogeography of the eastern Asian-eastern North American disjunct<i>Mitchella</i>and its close relative<i>Damnacanthus</i>(Rubiaceae, Mitchelleae)

Huang, Wei‐Ping; Sun, Hang; Deng, Tao; Razafimandimbison, Sylvain G.; Nie, Ze‐Long; Wen, Jun

doi:10.1111/j.1095-8339.2012.01321.x

Cited by 21 publications

(22 citation statements)

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“…In contrast, the biogeographic diversification of Polygonatum in EA represents one of the few examples showing a south to north migration scenario. Notably, some plant lineages have been reported to have southern or tropical origins with adaptations to northern and seasonal climates in EA [56], especially for north temperate taxa with tropical affinities such as Mitchella L. (Rubiaceae) [57] and Parthenocissus Planch. (Vitaceae) [58].…”

Section: Discussionmentioning

confidence: 99%

The Biogeographic South-North Divide of Polygonatum (Asparagaceae Tribe Polygonateae) within Eastern Asia and Its Recent Dispersals in the Northern Hemisphere

et al. 2016

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Eastern Asia (EA) is a key region for the diversification of flowering plants in the Northern Hemisphere, but few studies have focused on the biogeographic history within EA in the context of the other northern continents. Polygonatum is an important medicinal genus widely distributed in the Northern Hemisphere with its highest species richness in EA, and it represents an excellent model for studying the evolution of biogeographic patterns in this region. Divergence time estimation was used to examine the biogeographic history of Polygonatum based on nuclear ITS and four plastid sequences (rbcL, matK, psbA–trnH and trnC–petN) from 30 Polygonatum species and 35 outgroup taxa. The ancestral area of Polygonatum and subsequent dispersal routes were inferred using Bayes-Lagrange. Polygonatum was estimated to have originated in southern EA during the middle Miocene (14.34–13.57 Ma) with subsequent south-to-north expansion in the late Miocene. Multiple intercontinental dispersal events were inferred between EA and Europe or North America, and all of them have occurred recently in the late Miocene to Pliocene. The separation of Polygonatum into the south and north lineages and their subsequent diversifications in the late Miocene supports the existence of a biogeographic divide between the northern and southern parts of EA that also coincides with the retreat and redevelopment of the arid zone in EA in the Neogene. Our results demonstrate the complexity of biogeographic history of Polygonatum in the Northern Hemisphere including early vicariance followed by frequent and recent dispersals in the Neogene.

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Section: Discussionmentioning

confidence: 99%

The Biogeographic South-North Divide of Polygonatum (Asparagaceae Tribe Polygonateae) within Eastern Asia and Its Recent Dispersals in the Northern Hemisphere

et al. 2016

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“…In the Northern Hemisphere, four major areas are known to be involved with the intercontinental disjunct distributions of plant species: eastern Asia (EA), western North America (WNA), eastern North America (ENA), and Europe (EU) (Milne & Abbott, ; Donoghue & Smith, ). Of these four areas of disjunct distribution, the one between EA and ENA has attracted the most interest of phytogeographers and evolutionary biologists, and consequently numerous studies have been conducted since the mid‐19th century (e.g., Raven, ; Raven & Axelrod, ; Boufford & Spongberg, ; Tiffney, ; Hong, ; Xiang et al, ; Manchester, ; Wen, , ; Manos & Donoghue, ; Huang et al, ; Zhang et al, ). The striking similarity of the EA and the ENA flora was noted by Asa Gray, who provided a series of detailed comparisons of the floras in the two continents (Gray, ; Boufford & Spongberg, ; Wen, ).…”

Section: Introductionmentioning

confidence: 99%

New insights into the phylogeny and biogeography of subfamily Orontioideae (Araceae)

Lee

Kim

Lee

et al. 2019

J of Sytematics Evolution

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Proto‐Araceae, the earliest diverged lineage within the family Araceae, includes two subfamilies, Gymnostachydoideae (one species) and Orontioideae (eight species). Based on an extensive sampling (a total of 198 accessions) of six chloroplast non‐coding regions (5799 aligned sites), we assessed phylogenetic relationships among the genera and species within subfamily Orontioideae and estimated the timing of intercontinental disjunct events in the Northern Hemisphere. Overall phylogenetic relationships among the genera were consistent with results from previous studies, but several new important findings were discovered, primarily within Symplocarpus Salisb. ex W. P. C. Barton. First, two major lineages within Symplocarpus were identified: one lineage included S. foetidus (L.) Salisb. ex W. Barton, S. nabekuraensis Otsuka & K. Inoue, and S. renifolius Schott ex Tzvelev (Japan), whereas the other included S. nipponicus Makino, S. egorovii N. S. Pavlova & V. A. Nechaev, and S. renifolius (Korea). Symplocarpus renifolius in Japan was tetraploid and closely related to the tetraploid S. foetidus in eastern North America. Populations of S. renifolius in Korea were confirmed to be diploid (2n = 30) and shared the most recent common ancestor with the other diploid species, S. nipponicus. Second, two recently described species, S. nabekuraensis and S. egorovii, were deeply embedded within S. renifolius in Japan and Korea, respectively, and their distinct taxonomic status requires further assessment. Finally, two intercontinental disjunction events in the subfamily, one in Lysichiton Schott between eastern Asia and western North America and the other in Symplocarpus between eastern Asia and eastern North America, were estimated to be between 4.5 and 1.4 million years ago (Pliocene and Pleistocene) and between 1.9 and 0.5 million years ago (Pleistocene), respectively.

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“…Some of the relevant lineages include Acer L. ( A. pensylvanicum L./ A. crataegifolium Siebold & Zucc. ; Renner & al., ), Aristolochia L. (González & al., ), Mitchella L. (Huang & al., ) and Viburnum L. ( V. acerifolium L./its sister clade of Asian species; Moore & Donoghue, ).…”

Section: Discussionmentioning

confidence: 99%

Morphometric, phylogenetic and biogeographic analyses ofPyrularia(Santalales), a parasitic disjunct lineage between eastern Asia and eastern North America

Zhou

Wen

et al. 2019

TAXON

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Pyrularia is a small parasitic genus of the Santalales with two to five species exhibiting a well-known classical intercontinental disjunct distribution between eastern Asia (EA) and eastern North America (ENA). Pyrularia and another santalaceous genus Buckleya represent the only two parasitic plant lineages with the EA-ENA disjunction. The present study was carried out to assess the species number and molecular and morphological differentiation in Pyrularia, and to reconstruct the biogeography of the Pyrularia clade (Pyrularia and its close allies) using dating and biogeographic inferences. A phylogenetic analysis based on two nuclear and seven plastid markers strongly supported the monophyly of Pyrularia and revealed two highly distinct subclades corresponding to EA and ENA within the genus. Incongruent topologies within the eastern Asian lineage were found between the nuclear and the plastid datasets, which may be attributed to incomplete lineage sorting. Morphometric and phylogenetic analyses suggest that Pyrularia in eastern Asia may best be treated as a single species, P. edulis. Molecular dating based on four markers suggested that the divergence time between the intercontinental species was in the late Miocene at 5.58 Ma (95% HPD: 2.08-11.72 Ma), which was close to the split of the trans-Pacific clades within the other parasitic EA-ENA disjunct genus Buckleya. The EA-ENA disjunction in the only two parasitic genera may have resulted from the fragmentation of the mesophytic temperate forests in the late Miocene. The Pyrularia clade (including the close allies of Pyrularia) was inferred to have originated in Africa, then dispersed to Asia, and subsequently to North America via the Bering land bridge, resulting in the current intercontinental EA-ENA distribution of Pyrularia.Supporting Information may be found online in the Supporting Information section at the end of the article. Fruit peduncle relatively slender relatively robust and short relatively slender relatively robust and short Distribution widespread in eastern Asia (China,

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Molecular phylogenetics and biogeography of the eastern Asian-eastern North American disjunctMitchellaand its close relativeDamnacanthus(Rubiaceae, Mitchelleae)

Cited by 21 publications

References 100 publications

The Biogeographic South-North Divide of Polygonatum (Asparagaceae Tribe Polygonateae) within Eastern Asia and Its Recent Dispersals in the Northern Hemisphere

The Biogeographic South-North Divide of Polygonatum (Asparagaceae Tribe Polygonateae) within Eastern Asia and Its Recent Dispersals in the Northern Hemisphere

New insights into the phylogeny and biogeography of subfamily Orontioideae (Araceae)

Morphometric, phylogenetic and biogeographic analyses ofPyrularia(Santalales), a parasitic disjunct lineage between eastern Asia and eastern North America

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