Geographic distribution and origin of the chloroplast <scp>T/C</scp>‐type in <scp><i>Quercus mongolica</i></scp> var. <scp><i>crispula</i></scp> in northeastern <scp>J</scp>apan

Liu, Huanzhen; Harada, Ko

doi:10.1111/1442-1984.12008

Cited by 12 publications

(18 citation statements)

References 5 publications

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“…Besides the distribution records included in this study, records were sourced from the Chinese Virtual Herbarium (http://www.cvh.org.cn/) and several published papers (Zhou et al . ; Liu & Harada ), resulting in a total of 103 records being used for modelling. A current distribution model was developed using 5 bioclimatic variables, that is Annual Mean Temperature, Mean Diurnal Range [Monthly Mean (maximum temperature−minimum temperature)], Mean Temperature of Coldest Quarter, Precipitation of Wettest Quarter and Precipitation of Driest Quarter (Zhou et al .…”

Section: Methodsmentioning

confidence: 99%

Multiple glacial refugia for cool‐temperate deciduous trees in northern East Asia: the Mongolian oak as a case study

et al. 2015

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In East Asia, temperate forests are predicted to have retracted southward to c. 30° N during the last glacial maximum (LGM) based on fossil pollen data, whereas phylogeographic studies have often suggested glacial in situ survival of cool-temperate deciduous trees in their modern northern ranges. Here we report a study of the genetic diversity and structure of 29 natural Mongolian oak (Quercus mongolica) populations using 19 nuclear simple sequence repeat (nSSR) loci and four chloroplast DNA fragments. Bayesian clustering analysis with nSSRs revealed five groups, which were inferred by approximate Bayesian computation (ABC) to have diverged in multiple refugia through multiple glacial-interglacial cycles. Analysis of chloroplast DNA variation revealed four lineages that were largely but incompletely geographically disjunct. Ecological niche modelling (ENMs) indicated a southward range shift of the oak's distribution at the LGM, although high suitability scores were also evident in the Changbai Mts. (Northeast China), the Korean Peninsula, areas surrounding the Bohai Sea, and along the coast of the Russian Far East. In addition, endemic chloroplast DNA haplotypes and nuclear lineages occurred in high-latitude northern areas where the ENM predicted no suitable habitat. The combined evidence from nuclear and chloroplast DNA, and the results of the ENM clearly demonstrate that multiple northern refugia, including cryptic ones, were maintained across the current distributional range of the Mongolian oak during the LGM or earlier glacial periods. Though spatially limited, postglacial expansions from these refugia have led to a pattern of decreased genetic diversity with increasing latitude.

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Section: Methodsmentioning

confidence: 99%

Multiple glacial refugia for cool‐temperate deciduous trees in northern East Asia: the Mongolian oak as a case study

et al. 2015

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“…Several studies have investigated the Quercus mongolica complex in both Japan and the Asian continent (Okaura et al 2007;Zeng et al 2011;Harada et al 2014;Liu & Harada 2014;Zeng et al 2015). Therefore, we did not intensively collect samples, but covered the natural range of the Q. mongolica complex in the Asian continent and Japan (Table 1; Fig.…”

Section: Plant Materials and Dna Extractionmentioning

confidence: 99%

“…; Harada et al . ; Liu & Harada ) and in north‐east Japan by using nuclear SSR (Ohsawa et al . ), whereas genetic analyses of Q. mongolica var.…”

Section: Introductionmentioning

confidence: 99%

“…Genetic analyses have been conducted for Quercus mongolica var. crispula throughout Japan by using cpDNA (Kanno et al 2004;Okaura et al 2007;Harada et al 2014;Liu & Harada 2014) and in north-east Japan by using nuclear SSR (Ohsawa et al 2011), whereas genetic analyses of Q. mongolica var. mongolica throughout its distribution range in the Asian continent have been performed using cpDNA and nuclear SSR (Zeng et al 2010(Zeng et al , 2011(Zeng et al , 2015.…”

Section: Introductionmentioning

confidence: 99%

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Unveiling the origin of Quercus serrata subsp. mongolicoides found in Honshu, Japan, by using genetic and morphological analyses

Aizawa

Maekawa

Mochizuki

et al. 2018

Plant Species Biology

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Quercus mongolica is a tree found in temperate deciduous forests in east Asia. In Japan, Q. mongolica var. crispula is commonly found; moreover, an oak whose morphology is similar to that of Q. mongolica var. mongolica of the Asian continent has been found in certain areas of Honshu and Hokkaido. Recently, the oak found in Honshu was described as Q. serrata subsp. mongolicoides (QSM). However, genetic comparison between this oak and Q. mongolica var. mongolica of the Asian continent has not been performed; the origin of QSM is thus unknown. Therefore, we aimed to determine the origin of QSM by conducting nuclear microsatellite (nSSR), chloroplast DNA (cpDNA) and leaf morphology analyses for the three taxa, as well as other congeners. The cpDNA variation overlapped among the three taxa, suggesting low discrimination ability for these taxa. Although morphological congruency was found between QSM and Q. mongolica var. mongolica, results of nSSR analyses showed that QSM contained a genetic admixture of Q. mongolica var. mongolica of the Asian continent and Q. mongolica var. crispula of Japan, bolstering an admixture hypothesis. The nSSR and cpDNA analyses suggested that Q. mongolica var. crispula can be the progenitor of Q. mongolica var. mongolica and harbors the ancestral cpDNA haplotypes. Therefore, we concluded that QSM might have been created by an admixture that likely occurred within Japan between Q. mongolica var. crispula and putative relict Q. mongolica var. mongolica, which might have diverged in or around Japan from Q. mongolica var. crispula during the late Pleistocene.

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“…Nevertheless, recent phylogeographic studies have highlighted in situ survival of hardy alpine herbs and forest trees during glacial periods in northern China. Many refugia scenarios have been revealed for these species, such as single refugium (Liu & Harada, ), multiple refugia (Tian et al., ), refugia within refugia (Wang, Gao, Kang, Lowe, & Huang, ), cryptic refugia, or microrefugia (Stewart, Lister, Barnes, & Dalen, ).…”

Section: Introductionmentioning

confidence: 99%

Phylogeography of two closely related species of Allium endemic to East Asia: Population evolution in response to climate oscillations

Yang

Zhou

Huang

et al. 2018

Ecology and Evolution

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This study investigated the effects of climate oscillations on the evolution of two closely related Allium species, A. neriniflorum and A. tubiflorum. We sequenced three cp DNA (cpDNA) fragments (rps16, rpl32‐trnL, and trnD‐trnT, together approximately 2,500 bp in length) of two closely related Allium species, with samples from 367 individuals in 47 populations distributed across the total range of these species. The interspecific and intraspecific divergence times of the two species were in the Quaternary glaciation. The population divergence was high for the cpDNA variation, suggesting a significant phylogeographic structure (NST = 0.844, GST = 0.798, p < 0.05). Remarkable ecological differentiation was also revealed by Niche models and statistical analyses. Our results suggest the speciation event of the two species was triggered by violent climatic changes during the Quaternary glaciation.

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Geographic distribution and origin of the chloroplast T/C‐type in Quercus mongolica var. crispula in northeastern Japan

Cited by 12 publications

References 5 publications

Multiple glacial refugia for cool‐temperate deciduous trees in northern East Asia: the Mongolian oak as a case study

Multiple glacial refugia for cool‐temperate deciduous trees in northern East Asia: the Mongolian oak as a case study

Unveiling the origin of Quercus serrata subsp. mongolicoides found in Honshu, Japan, by using genetic and morphological analyses

Phylogeography of two closely related species of Allium endemic to East Asia: Population evolution in response to climate oscillations

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