From glacial refugia to wide distribution range: demographic expansion of Loropetalum chinense (Hamamelidaceae) in Chinese subtropical evergreen broadleaved forest

Gong, Wei; Liu, Wanzhen; Gu, Lei; Kaneko, Shingo; Koch, Marcus A.; Zhang, Dianxiang

doi:10.1007/s13127-015-0252-4

Cited by 30 publications

(38 citation statements)

References 80 publications

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“…Its behaviour has instead been context dependent and most probably been driven by differences in environmental conditions and the corresponding state of the EBLF vegetation. Our case adds to a rapidly growing body of evidence indicating the widespread existence of glacial refugia especially, albeit not exclusively, south of the Nanling and Wuyi Mountains (reviewed in Fan et al., ; Ye, Zhang, et al., ), whereas several studies that have reported on significant post‐glacial range expansions identified these mostly north of these mountain belts (Fan et al., ; Gong et al., ; Shi et al., ; Tian et al., ; Tian et al., ). Taken together, this evidence suggests that, during the LGM, EBLF probably was markedly better conserved at more extensive south of the Nanling and Wuyi Mountain belts than on their northern side.…”

Section: Discussionsupporting

confidence: 50%

“…Wuyi Mountains (north-eastern cluster) would seem a reasonable scenario ( Figure 3; see also Shi et al, 2014;Machilus thunbergii in Fan et al, 2016;Gong et al, 2015;Tian et al, 2018). On the contrary, we could neatly identify the contact zone between the two northern clusters and confirm that populations near the border (LUSH, GUSH and JSHI) showed consistent signs of admixture.…”

Section: Secondary Contacts and Admixture Between Cladessupporting

confidence: 48%

“…Our data did not allow to infer the precise places where the two northward range expansions of L. aggregata started, although source populations located in the Nanling Mountains (north‐western cluster) and Wuyi Mountains (north‐eastern cluster) would seem a reasonable scenario (Figure ; see also Shi et al., ; Machilus thunbergii in Fan et al., ; Gong et al., ; Tian et al., ). On the contrary, we could neatly identify the contact zone between the two northern clusters and confirm that populations near the border (LUSH, GUSH and JSHI) showed consistent signs of admixture.…”

Section: Discussionmentioning

confidence: 78%

“…In line with palaeo‐biome reconstructions (Harrison et al., ; Ni et al., ), the expansion‐contraction (EC) model assumes marked southward range contractions of taxa during Quaternary cold stages followed by significant inter‐/postglacial northward range expansions. This model has been supported by a limited number of phylogegraphical studies (Gong et al., ; Shi, Michalski, Welk, Chen, & Durka, ; Tian et al., , ). Numerous others have, however, concluded that their target species survived the LGM in situ in multiple refugia and did not experience extensive northward spread afterwards (in situ survival or ISS model; reviewed in Fan et al., ).…”

Section: Introductionmentioning

confidence: 80%

“…In line with palaeo-biome reconstructions (Harrison et al, 2001;Ni et al, 2010), the expansion-contraction (EC) model assumes marked southward range contractions of taxa during Quaternary cold stages followed by significant inter-/postglacial northward range expansions. This model has been supported by a limited number of phylogegraphical studies (Gong et al, 2015;Shi, Michalski, Welk, Chen, & Durka, 2014;Tian et al, 2015Tian et al, , 2018.…”

Section: Introductionmentioning

confidence: 81%

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Differential Quaternary dynamics of evergreen broadleaved forests in subtropical China revealed by phylogeography of Lindera aggregata (Lauraceae)

Hampe

2019

Journal of Biogeography

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Aim According to palaeo‐biome reconstructions, the subtropical evergreen broadleaved forests (EBLF) in East Asia contracted to a narrow belt south of 24° N during the Last Glacial Maximum (LGM). Yet numerous phylogeographical studies of EBLF plants have inferred glacial refugia north of this area. Here, we aim to further elucidate the Quaternary dynamics of EBLFs using the widespread shrub Lindera aggregata as model. Location Subtropical China. Taxon Lindera aggregata (Sims) Kosterm (angiosperms). Methods Four chloroplast DNA (cpDNA) fragments and 15 low‐copy nuclear genes (LCGs) were sequenced in 19 populations. The time to the most recent common ancestor (TMRCA) was estimated using secondary calibrations. Bayesian algorithms were used to infer population clustering, phylogeny and divergence time. Historical gene flow was estimated using a maximum‐likelihood algorithm. Potential habitats at present and during the LGM were predicted using ecological niche modelling. Results The TMRCA estimate was 1.78 Myr. We observed a shallow cpDNA network organized around one dominant haplotype. The LCGs revealed three distinct genetic clusters that reflected contrasting historical population dynamics. The most ancient cluster was located south of the Nanling and Wuyi Mountains and indicated long‐term population persistence in multiple refugia. The area further north was occupied by two disjunct clusters that dated back to the LGM and showed signatures of a rapid northward expansion from two refugia. We detected noteworthy pollen‐mediated secondary admixture between all three clusters including somewhat preferential southward gene flow. Main conclusions Lindera aggregata represents a rare example of extensive post‐glacial range expansion across the EBLF biome (expansion‐contraction model) that contrasts with its generalized long‐term population stability in the southernmost range parts. Our findings also provide rare evidence for noteworthy post‐glacial gene flow into long‐term refugial populations. They correspond relatively well with palaeo‐biome reconstructions and support the hypothesis that the EBLF has undergone extensive post‐glacial community reshuffling.

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Section: Discussionsupporting

confidence: 50%

Section: Secondary Contacts and Admixture Between Cladessupporting

confidence: 48%

Section: Discussionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 81%

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Differential Quaternary dynamics of evergreen broadleaved forests in subtropical China revealed by phylogeography of Lindera aggregata (Lauraceae)

Hampe

2019

Journal of Biogeography

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Phylogeographic analysis of Siraitia grosvenorii in subtropical China provides insights into the origin of cultivated monk fruit and conservation of genetic resources

Xie

Lai

Chen

et al. 2023

Ecology and Evolution

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Dispersal corridors for plant species in the Poyang Lake Basin of southeast China identified by integration of phylogeographic and geospatial data

Fan

Sun

et al. 2017

Ecology and Evolution

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Measuring the dispersal of wildlife through landscapes is notoriously difficult. Recently, the categorical least cost path algorithm that integrates population genetic data with species distribution models has been applied to reveal population connectivity. In this study, we use this method to identify the possible dispersal corridors of five plant species (Castanopsis tibetana, Schima superba, Cyclocarya paliurus, Sargentodoxa cuneata, Eomecon chionantha) in the Poyang Lake Basin (PLB, largely coinciding with Jiangxi Province), China, in the late Quaternary. The results showed that the strongest population connectivity for the five species occurred in the Wuyi Mountains and the Yu Mountains of the eastern PLB (East Corridor) during the late Quaternary. In the western PLB, populations of the five species were connected by the Luoxiao Mountains and the Jiuling Mountains (West Corridor) but with a lower degree of connectivity. There were some minor connections between the eastern and the western populations across the Gannan Hills. When the corridors of five species were overlaid, the East Corridor and the West Corridor were mostly shared by multiple species. These results indicate that plant species in the PLB could have responded to the Quaternary climate changes by moving along the East Corridor and the West Corridor. Given that dispersal corridors have seldom been considered in the governmental strategies of biodiversity conservation in the PLB, preserving and restoring natural vegetation along these corridors should be prioritized to mitigate the effects of anthropogenic climate change by facilitating migration of plant species and other biota.

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From glacial refugia to wide distribution range: demographic expansion of Loropetalum chinense (Hamamelidaceae) in Chinese subtropical evergreen broadleaved forest

Cited by 30 publications

References 80 publications

Differential Quaternary dynamics of evergreen broadleaved forests in subtropical China revealed by phylogeography of Lindera aggregata (Lauraceae)

Differential Quaternary dynamics of evergreen broadleaved forests in subtropical China revealed by phylogeography of Lindera aggregata (Lauraceae)

Phylogeographic analysis of Siraitia grosvenorii in subtropical China provides insights into the origin of cultivated monk fruit and conservation of genetic resources

Dispersal corridors for plant species in the Poyang Lake Basin of southeast China identified by integration of phylogeographic and geospatial data

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