Climate oscillation during the Quaternary associated with landscape heterogeneity promoted allopatric lineage divergence of a temperate tree<i>Kalopanax septemlobus</i>(Araliaceae) in East Asia

Sakaguchi, Shota; Qiu, Ying‐Xiong; Liu, Yihui; Qi, Xuchen; Kim, Sea-Hyun; Han, Jingyu; Takeuchi, Yayoi; Worth, James R. P.; Yamasaki, Michimasa; Sakurai, Shogo; Isagi, Yuji

doi:10.1111/j.1365-294x.2012.05652.x

Cited by 110 publications

(102 citation statements)

References 93 publications

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“…The East China Sea Land Bridge [90, 91] may have allowed dispersal and gene exchange between woodland species of East China, Korea and Japan. Examples such as Cercidiphyllum japonicum [88] and Kalopanax septemlobus [89] have been documented. However the East China Sea Land Bridge may also have acted as a ‘filter’ during the last glacial event for certain species and produced genetic differentiation among populations in South Japan, South Korea and East China.…”

Section: Discussionmentioning

confidence: 99%

Molecular Phylogeny and Biogeographic Diversification of Linnaeoideae (Caprifoliaceae s. l.) Disjunctly Distributed in Eurasia, North America and Mexico

et al. 2015

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Linnaeoideae is a small subfamily of erect or creeping shrubs to small trees in Caprifoliaceae that exhibits a wide disjunct distribution in Eurasia, North America and Mexico. Most taxa of the subfamily occur in eastern Asia and Mexico but the monospecific genus Linnaea has a circumboreal to north temperate distribution. In this study, we conducted phylogenetic and biogeographic analyses for Linnaeoideae and its close relatives based on sequences of the nuclear ribosomal ITS and nine plastid (rbcL, trnS-G, matK, trnL-F, ndhA, trnD-psbM, petB-D, trnL-rpl32 and trnH-psbA) markers. Our results support that Linnaeoideae is monophyletic, consisting of four eastern Asian lineages (Abelia, Diabelia, Dipelta and Kolkwitzia), the Mexican Vesalea, and Linnaea. The Mexican Vesalea was formerly placed in Abelia, but it did not form a clade with the eastern Asian Abelia; instead Vesalea and Linnaea are sisters. The divergence time between the eastern Asian lineages and the Mexican Vesalea plus the Linnaea clade was dated to be 50.86 Ma, with a 95% highest posterior density of 42.8 Ma (middle Eocene) to 60.19 Ma (early Paleocene) using the Bayesian relaxed clock estimation. Reconstructed ancestral areas indicated that the common ancestor of Linnaea plus Vesalea may have been widespread in eastern Asia and Mexico or originated in eastern Asia during the Eocene and likely migrated across continents in the Northern Hemisphere via the North Atlantic Land Bridges or the Bering Land Bridge. The Qinling Mountains of eastern Asia are the modern-day center of diversity of Kolkwitzia-Dipelta-Diabelia clade. The Diabeliaclade became highly diversified in Japan and eastern China. Populations of Diabelia serrata in Japan and eastern China were found to be genetically identical in this study, suggesting a recent disjunction across the East China Sea, following the last glacial event.

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Section: Discussionmentioning

confidence: 99%

Molecular Phylogeny and Biogeographic Diversification of Linnaeoideae (Caprifoliaceae s. l.) Disjunctly Distributed in Eurasia, North America and Mexico

et al. 2015

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“…Wang et al, 2014;Wang et al, 2015), and East China-Japan-Korea (e.g. Qiu et al, 2009a, b, c;Qi et al, 2012;Sakaguchi et al, 2012), while few have been conducted throughout the SJFR. Besides, it also needs to be emphasized that numerous phylogeographical studies within the SJFR have focused on individual species, while a limited number have been conducted on multiple pairs of sister species or groups of closely related taxa (Qiu et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…In particular, patterns of plant dispersal/migration have emerged, such as north-to-south migration to the Himalaya-Hengduan Mountains for some ArctoTertiary floristic elements (H. Sun, 2002a, b; Y. X. Sun et al, 2014), migration from Southwest China to other regions along mountain corridors for numerous groups containing taxa distributed across East Asia (Wang, 1992), migration from South China to Southeast Asia for some genera distributed in the subtropics and tropics Wen, 2013, 2014), and migration between East China and Japan via the exposed East China Sea land bridge for some herbs, shrubs and trees with disjunct distributions in these areas (Qiu et al, 2009a(Qiu et al, , b, c, 2011Sakaguchi et al, 2012). The driving mechanisms of species divergence in the SJFR have been widely discussed.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, it is well known that climate change plays a critical role in shaping the distribution of plants (Harrison et al, 2001;Qiu et al, 2011). The range dynamics in response to past climate change have been assessed based on ecological niche modelling (ENM) for a limited number of plants in the SJFR, such as Cercidiphyllum (Qi et al, 2012), Kalopanax septemlobus (Sakaguchi et al, 2012) and Tetrastigma hemsleyanum (Wang et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Molecular phylogeny, biogeography and ecological niche modelling ofCardiocrinum(Liliaceae): insights into the evolutionary history of endemic genera distributed across the Sino-Japanese floristic region

Yang

Xie

et al. 2016

Ann Bot

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Background and Aims The patterns of evolutionary assembly in the Sino-Japanese floristic region (SJFR) remain largely unknown due to a lack of integrative multidimensional studies throughout the region. To address this issue, we elucidated the evolutionary history of Cardiocrinum (Liliaceae), a genus containing four taxa distributed across the SJFR.Methods Fifty-four populations were sampled throughout the geographical range of Cardiocrinum to assess genetic structure, analyse phylogenetic relationships and reconstruct ancestral area based on six chloroplast DNA (cpDNA) fragments and three low copy nuclear genes (LCNG). Ecological niche modelling was used to examine the potential range shifts of Cardiocrinum in response to climatic change.Key Results The molecular data showed high genetic similarity in the cpDNA (98Á37 %) and LCNG (94Á53 %) sequences. The biogeographical analyses revealed that the ancestor of Cardiocrinum diversified during the late Miocene (approx. 7Á32 Mya) in Central China. The ancestor of the C. giganteum lineage dispersed westward to the Himalayas and south-west China with the split between C. giganteum and C. giganteum var. yunnanense occurring around 4Á11 Mya consistent with the period of orogeny of the Hengduan Mountains. Some populations of the C. cathayanum lineage dispersed eastward to south Japan via the land bridge approx. 4Á97 Mya, providing opportunities for allopatric speciation of C. cordatum. The predicted suitable habitats of Cardiocrinum have become smaller and more fragmented since the Last Glacial Maximum.Conclusions Our study provides evidence of a biogeographical pattern of dispersal from Central China to the Himalayas in the west and Japan in the east for genera distributed across the SJFR, and highlights that the orogeny of the Hengduan Mountains and fluctuations of the sea level of the East China Sea played important roles in promoting species divergence.

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“…We prepared the LGM palaeoclimate layers at a resolution of 2.5 arc‐minutes following the methods of Sakaguchi et al. (2012), and the palaeocoastlines were estimated as being −130 m lower than at present on the basis of seafloor topology data (ETOPO1; http://www.ngdc.noaa.gov/mgg/global/). …”

Section: Methodsmentioning

confidence: 99%

Population demographic history of a temperate shrub, Rhododendron weyrichii (Ericaceae), on continental islands of Japan and South Korea

Yoichi

Tamaki

Sakaguchi

et al. 2016

Ecology and Evolution

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Continental islands provide opportunities for testing the effects of isolation and migration on genetic variation in plant populations. In characteristic of continental islands is that the geographic connections between these islands, which are currently distinguished by seaways, have experienced fluctuations caused by sea‐level changes due to climate oscillations during the Quaternary. Plant populations on the islands have migrated between these islands via the exposed seafloors or been isolated. Here, we examined the demographic history of a temperate shrub, Rhododendron weyrichii, which is distributed in the southwestern parts of the Japanese archipelago and on an island of South Korea, using statistical phylogeographic approaches based on the DNA sequences of two chloroplast and eight nuclear loci in samples analyzed from 18 populations on eight continental islands, and palaeodistribution modeling. Time estimates for four island populations indicate that the durations of vicariance history are different between these populations, and these events have continued since the last glacial or may have predated the last glacial. The constancy or expansion of population sizes on the Japanese islands, and in contrast a bottleneck in population size on the Korean island Jeju, suggests that these islands may have provided different conditions for sustaining populations. The result of palaeodistribution modeling indicates that the longitudinal range of the species as a whole has not changed greatly since the last glacial maximum. These results indicate that exposed seafloors during the glacial period formed both effective and ineffective migration corridors. These findings may shed light on the effects of seafloor exposure on the migration of plants distributed across continental islands.

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Climate oscillation during the Quaternary associated with landscape heterogeneity promoted allopatric lineage divergence of a temperate treeKalopanax septemlobus(Araliaceae) in East Asia

Cited by 110 publications

References 93 publications

Molecular Phylogeny and Biogeographic Diversification of Linnaeoideae (Caprifoliaceae s. l.) Disjunctly Distributed in Eurasia, North America and Mexico

Molecular Phylogeny and Biogeographic Diversification of Linnaeoideae (Caprifoliaceae s. l.) Disjunctly Distributed in Eurasia, North America and Mexico

Molecular phylogeny, biogeography and ecological niche modelling ofCardiocrinum(Liliaceae): insights into the evolutionary history of endemic genera distributed across the Sino-Japanese floristic region

Population demographic history of a temperate shrub, Rhododendron weyrichii (Ericaceae), on continental islands of Japan and South Korea

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