Phylogeography of East Asia&amp;rsquo;s Tertiary relict plants: current progress and future prospects

Yingxiong, Qiu; Lu, Qixiang; Zhang, Yonghua; Cao, Yanan

doi:10.17520/biods.2016292

Cited by 32 publications

(38 citation statements)

References 8 publications

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“…The breaking off of Beringia during the late Tertiary global cooling event induced species splits between Asia and North America (Milne & Abbott, 2002); L. chinense and L. tulipifera were among the species that diverged (Parks & Wendel, 1990). To the best of our knowledge, phylogeographic studies in subtropical China have reinforced the allopatric speciation hypothesis for species diversity, and the phylogeographic divergence in subtropical China is mostly attributed to the tectonic and climate changes during the Quaternary (Qiu et al, 2017). Specifically, the uplift of the Himalayan–Tibetan Plateau and the subsequent formation of Asian monsoons generated a split of the southwestern clade (southwestern Yungui Plateau) from the clades in other regions for many plant species, such as Tetrastigma hemsleyanum (Southwest China vs. Central and East China: 5.07 Ma; Wang et al, 2015), Taxus wallichiana (Sino-Himalayan vs .…”

Section: Discussionmentioning

confidence: 97%

“…During glacial periods, the Qinling Mountains at the northern end of subtropical China may have acted as a barrier to cold, dry air from the north (Dong et al, 2011). Collectively, the mountains in subtropical China became some of the most important refugial locations during the Quaternary glacial period (Qiu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, there are no clear patterns of recolonization from the south but rather a pattern of range fragmentation (e.g., Wang et al, 2009, Wang et al, 2013, Feng et al, 2017) or only localized range expansion (e.g., Qi et al, 2012; Tian et al, 2015). Phylogeographic studies frequently suggest that the mountains in subtropical China functioned as refugia (i.e., Qiu, Fu & Comes, 2011; Liu et al, 2012; Qiu et al, 2017), dispersal corridors (e.g., Tian et al, 2015, 2018), or even genetic barriers to migration (Sun et al, 2014b; Zhang et al, 2016). As lineage differentiation and colonization mostly occurred far earlier than the last glacial maximum (LGM) (e.g., Cao et al, 2016; Zhang et al, 2016; Qiu et al, 2017), more ancient events should be considered in phylogeographic studies of subtropical organisms in China (Zhang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Phylogeographic studies frequently suggest that the mountains in subtropical China functioned as refugia (i.e., Qiu, Fu & Comes, 2011; Liu et al, 2012; Qiu et al, 2017), dispersal corridors (e.g., Tian et al, 2015, 2018), or even genetic barriers to migration (Sun et al, 2014b; Zhang et al, 2016). As lineage differentiation and colonization mostly occurred far earlier than the last glacial maximum (LGM) (e.g., Cao et al, 2016; Zhang et al, 2016; Qiu et al, 2017), more ancient events should be considered in phylogeographic studies of subtropical organisms in China (Zhang et al, 2016). Moreover, the presence of northern refugia may have blurred a typical colonization pattern (Stewart et al, 2010), and individual biological characteristics and environmental differences may result in various phylogeographic patterns (Davis & Shaw, 2001; Petit, 2003).…”

Section: Introductionmentioning

confidence: 99%

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New insight into the phylogeographic pattern ofLiriodendron chinense(Magnoliaceae) revealed by chloroplast DNA: east–west lineage split and genetic mixture within western subtropical China

Yang¹,

Zhong²,

Liu³

et al. 2019

PeerJ

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BackgroundSubtropical China is a global center of biodiversity and one of the most important refugia worldwide. Mountains play an important role in conserving the genetic resources of species. Liriodendron chinense is a Tertiary relict tree largely endemic to subtropical China. In this study, we aimed to achieve a better understanding of the phylogeographical pattern of L. chinense and to explore the role of mountains in the conservation of L. chinense genetic resources.MethodsThree chloroplast regions (psbJ-petA, rpl32-ndhF, and trnK5’-matK) were sequenced in 40 populations of L. chinense for phylogeographical analyses. Relationships among chloroplast DNA (cpDNA) haplotypes were determined using median-joining networks, and genetic structure was examined by spatial analysis of molecular variance (SAMOVA). The ancestral area of the species was reconstructed using the Bayesian binary Markov Chain Monte Carlo (BBM) method according to its geographic distribution and a maximum parsimony (MP) tree based on Bayesian methods.ResultsObvious phylogeographic structure was found in L. chinense. SAMOVA revealed seven groups matching the major landscape features of the L. chinense distribution area. The haplotype network showed three clades distributed in the eastern, southwestern, and northwestern regions. Separate northern and southern refugia were found in the Wu Mountains and Yungui Plateau, with genetic admixture in the Dalou Mountains and Wuling Mountains. BBM revealed a more ancient origin of L. chinense in the eastern region, with a west–east split most likely having occurred during the Mindel glacial stage.DiscussionThe clear geographical distributions of haplotypes suggested multiple mountainous refugia of L. chinense. The east–west lineage split was most likely a process of gradual genetic isolation and allopatric lineage divergence when the Nanling corridor was frequently occupied by evergreen or coniferous forest during Late Quaternary oscillations. Hotspots of haplotype diversity in the Dalou Mountains and Wuling Mountains likely benefited from gene flow from the Wu Mountains and Yungui Plateau. Collectively, these results indicate that mountain regions should be the main units for conserving and collecting genetic resources of L. chinense and other similar species in subtropical China.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

New insight into the phylogeographic pattern ofLiriodendron chinense(Magnoliaceae) revealed by chloroplast DNA: east–west lineage split and genetic mixture within western subtropical China

Yang¹,

Zhong²,

Liu³

et al. 2019

PeerJ

View full text Add to dashboard Cite

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“…; Qiu et al . ). Changes in vascular plant populations caused by aridity also adversely affected the overwintering capacity and growth of S. caninervis (Yin et al .…”

Section: Discussionmentioning

confidence: 97%

Dispersal and genetic differentiation of Syntrichia caninervis populations across different desert regions in China

Yin

Zhang

et al. 2019

Plant Biol J

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The moss Syntrichia caninervis is widely distributed in cool temperate and cold deserts where environmental pressures create a dependence on asexual reproduction (fragment reproduction). However, when compared to sporophyte-producing mosses, there is a lack of evidence to support the capacity of drought-tolerant mosses that predominantly fragment and produce protonema to disperse over long distances.• We used 20 microsatellite loci to study genetic variation and structure in six populations (five natural populations and one population from a regeneration site) in three contrasting and widely separated regions of China.• Predominantly asexually reproducing populations of S. caninervis are mainly dependent on short-distance dispersal. Long-distance dispersal of S. caninervis propagules across the region is difficult. Establishment of populations with dominant asexual reproduction will eventually result in genetic differentiation.Plant Biology 21 (2019) 706-714

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Diversification of East Asian subtropical evergreen broadleaved forests over the last 8 million years

2022

Ecology and Evolution

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The evolution of subtropical evergreen broadleaved forests (EBLFs) in East Asia is interesting while complicated. Genus‐level phylogenies indicate that the origins of EBLFs could trace back to the Oligocene–Miocene boundary or even the Eocene, while population‐level phylogeographic evidence suggests that they diversified after the Miocene, particularly in the Pleistocene. Here, we review the origins of dominant plant species to better understand the evolution of EBLFs. We compiled published estimates of the timing of origin of dominant species and diversification of evergreen relict genera from East Asian EBLFs. We also traced and visualized the evolution of EBLFs in the region using dated phylogenies and geographic distributions of the reviewed taxa. Most (76.1%) of the dominant species originated after the late Miocene, ca. 8 million years ago. Of the 10 evergreen relict genera, eight diverged near the late Miocene–Pliocene boundary or during the late Pliocene, and the remaining two diverged during the Pleistocene. Over the past 8 million years, geo‐climatic changes have triggered origins of most of the dominant EBLF species and provided refugia for evergreen relict genera. Three pulsed phases of evolution are suggested by genetic studies at the genus, species, and population levels. Fossil evidence and spatiotemporal investigations should be integrated to fully understand the evolution of EBLFs in East Asia.

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Phylogeography of East Asia’s Tertiary relict plants: current progress and future prospects

Cited by 32 publications

References 8 publications

New insight into the phylogeographic pattern ofLiriodendron chinense(Magnoliaceae) revealed by chloroplast DNA: east–west lineage split and genetic mixture within western subtropical China

New insight into the phylogeographic pattern ofLiriodendron chinense(Magnoliaceae) revealed by chloroplast DNA: east–west lineage split and genetic mixture within western subtropical China

Dispersal and genetic differentiation of Syntrichia caninervis populations across different desert regions in China

Diversification of East Asian subtropical evergreen broadleaved forests over the last 8 million years

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