Allopatric divergence and regional range expansion of Juniperus sabina in China

Guo, Yupeng; Zhang, Ru; Chen, Cuiyun; Zhou, Dangwei; Liu, Jianquan

doi:10.1111/j.1759-6831.2010.00073.x

Cited by 39 publications

(47 citation statements)

References 54 publications

(53 reference statements)

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“…The trn L- trn F [45] and rpl 32- trn L [46] intergenic regions, widely used in plant phylogeographical analyses [21,30,32], were amplified and sequenced. PCR reactions were carried out in a total volume of 25 μL containing 20 ng template DNA, 2.5 μL PCR buffer, 2 μL MgCl 2 (25 mmol/L), 0.5 μL dNTP mix (2.5 mmol/L), 1 μL each primer (5 pmol/L), and 0.3 μL (1 unit) Taq DNA polymerase.…”

Section: Methodsmentioning

confidence: 99%

“…In this context, a disjunct distribution could either be the result of long-distance dispersal from a source area into a suitable new area [15–18] or the consequence of disruption of the previously continuous distribution range [19,20]. Phylogenetic relationship [16–18] and genetic diversity within a given species [21–24] are two aspects frequently considered in order to unravel the historical processes involved. Theoretical and empirical evidence suggests that, when the disjunction is due to recent long-distance dispersal, individuals from separated regions will cluster together in a phylogenetic tree [16–18].…”

Section: Introductionmentioning

confidence: 99%

“…Although numerous phylogeographical studies have been carried out in either the QTP [4,28,29] or the greater Tianshan-Altay region [19,21,30–34], investigations addressing the historical processes that led to disjunct distributions are scarce. The limited data available show that plant species had low genetic diversity in Tianshan-Altay region, indicating a rapid colonization from the QTP and strong founder effects in the Tianshan-Altay region [35–37].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Long-Distance Dispersal after the Last Glacial Maximum (LGM) Led to the Disjunctive Distribution of Pedicularis kansuensis (Orobanchaceae) between the Qinghai-Tibetan Plateau and Tianshan Region

Sui

Kuss

et al. 2016

PLoS ONE

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Quaternary climate fluctuations have profoundly affected the current distribution patterns and genetic structures of many plant and animal species in the Qinghai-Tibetan Plateau (QTP) and adjacent mountain ranges, e.g. Tianshan (TSR), Altay, etc. In this greater area disjunct distributions are prominent but have nevertheless received little attention with respect to the historical processes involved. Here, we focus on Pedicularis kansuensis to test whether the current QTP and TSR disjunction is the result of a recent Holocene range expansion involving dispersal across arid land bridge(s) or a Pleistocene range fragmentation involving persistence in refugia. Two chloroplast DNA spacers were sequenced for 319 individuals from 34 populations covering the entire distribution range of this species in China. We found a total of 17 haplotypes of which all occurred in the QTP, and only five in the TSR. Overall genetic diversity was high (HT = 0.882, HS = 0.559) and higher in the QTP than in the TSR. Genetic differentiation among regions and populations was relatively low (GST = 0.366) and little evidence for a phylogeographic pattern emerged. The divergence times for the four main lineages could be dated to the early Pleistocene. Surprisingly, the two ubiquitous haplotypes diverged just before or around the Last Glacial Maximum (LGM) and were found in different phylogenetic lineages. The Species Distribution Model suggested a disappearance of P. kansuensis from the TSR during the LGM in contrast to a relatively constant potential distribution in the QTP. We conclude that P. kansuensis colonized the TSR after the LGM. The improbable long-distance dispersal by wind or water across arid land seed flow may well have had birds or men as vector.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Long-Distance Dispersal after the Last Glacial Maximum (LGM) Led to the Disjunctive Distribution of Pedicularis kansuensis (Orobanchaceae) between the Qinghai-Tibetan Plateau and Tianshan Region

Sui

Kuss

et al. 2016

PLoS ONE

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“…Previous studies have proven that deserts can be a large barrier for longdistance dispersal in some desert plants (Guo et al 2010;Meng and Zhang 2013;Meng et al 2007), so we hypothesis that the Hexi Corridor was a migration route, allowing the species to have a wide distribution. Base on the rooted phylogenetic network, H4 and H7 distributed in west regions were more ancient than other haplotypes, the network, and also, a great haplotype Table 4 Results of neutrality tests and mismatch distribution analysis for regional and the overall populations diversity and the presence of unique haplotypes in the east region (Fig.…”

Section: Hypothetical Phylogeographical History Of Z Xanthoxylummentioning

confidence: 99%

Phylogeographical structure inferred from cpDNA sequence variation of Zygophyllum xanthoxylon across north-west China

Shi

Zhang

2015

J Plant Res

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Zygophyllum xanthoxylon, a desert species, displaying a broad east-west continuous distribution pattern in arid Northwestern China, can be considered as a model species to investigate the biogeographical history of this region. We sequenced two chloroplast DNA spacers (psbK-psbI and rpl32-trnL) in 226 individuals from 31 populations to explore the phylogeographical structure. Median-joining network was constructed and analysis of AMOVA, SMOVA, neutrality tests and distribution analysis were used to examine genetic structure and potential range expansion. Using species distribution modeling, the geographical distribution of Z. xanthoxylon was modeled during the present and at the Last Glacial Maximum (LGM). Among 26 haplotypes, one was widely distributed, but most was restricted to either the eastern or western region. The populations with the highest levels of haplotype diversity were found in the Tianshan Mountains and its surroundings in the west, and the Helan Mountains and Alxa Plateau in the east. AMOVA and SAMOVA showed that over all populations, the species lacks phylogeographical structure, which is speculated to be the result of its specific biology. Neutrality tests and mismatch distribution analysis support past range expansions of the species. Comparing the current distribution to those cold and dry conditions in LGM, Z. xanthoxylon had a shrunken and more fragmented range during LGM. Based on the evidences from phylogeographical patterns, distribution of genetic variability, and paleodistribution modeling, Z. xanthoxylon is speculated most likely to have originated from the east and migrated westward via the Hexi Corridor.

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“…Geographic isolation and climate oscillations resulted in regional genetic differentiation of 266 species and population fragmentation (Guo et al, 2010;Hewitt, 2004;Ye et al, 2018). Climate 267 fluctuations during the Pleistocene resulted in increased aridification, with cold dry climatic 268 conditions that caused desert expansion and in turn promoted the diversification, speciation, and 269 habitat fragmentation of some desert species in northwest China.…”

mentioning

confidence: 99%

Intraspecific divergences and phylogeography of Panzerina lanata (Lamiaceae) in Northwest China

Zhao

Zhang

Pan

et al. 2018

Preprint

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Climactic fluctuations during the Quaternary played a crucial role in genetic diversity and population genetic structure of many plant species in northwestern China. In order to understand the impact of climate change on herbaceous plants, we studied Panzerina lanata (Lamiaceae), a widely distributed species. Two chloroplast DNA intergenic spacers (trnH-psbA and rpoB-trnC) were used to sequence 269 individuals from 27 populations and seven haplotypes were identified. Genetic structure and demographic characteristics were estimated using AMOVA, neutrality tests, and mismatch distribution analyses. The divergence times between the seven haplotypes were estimated using Beast. Our results revealed high levels of total genetic diversity (H T = 0.673±0.0869) and low levels of average within-population genetic diversity (H S = 0.033±0.0214). The analysis of molecular variance indicated major genetic differentiation among the three groups: northern, central, and eastern group. The species distribution modeling and demographic analysis indicated that P. lanata has not experience a recent range expansion. The divergence time within P. lanata occurred between the early Pleistocene and the late Pleistocene, which coincides with aridification and the expansion of the deserts in northwestern China that resulted in species diversification and habitat fragmentation. In addition, we speculate that the deserts and the Helan Mountains acted as effective geographic barriers that led to intraspecific diversity. Climactic fluctuations during the Quaternary played a crucial role in genetic diversity and 41 population genetic structure of many plant species in northwestern China. In order to understand 42 the impact of climate change on herbaceous plants, we studied Panzerina lanata (Lamiaceae), a 43 widely distributed species. Two chloroplast DNA intergenic spacers (trnH-psbA and rpoB-trnC) 44 were used to sequence 269 individuals from 27 populations and seven haplotypes were identified. 45 Genetic structure and demographic characteristics were estimated using AMOVA, neutrality 46 tests, and mismatch distribution analyses. The divergence times between the seven haplotypes 47 were estimated using Beast. Our results revealed high levels of total genetic diversity (H T = 48 0.673±0.0869) and low levels of average within-population genetic diversity (H S = 49 0.033±0.0214). The analysis of molecular variance indicated major genetic differentiation among 50 the three groups: northern, central, and eastern group. The species distribution modeling and 51 demographic analysis indicated that P. lanata has not experience a recent range expansion. The 52 divergence time within P. lanata occurred between the early Pleistocene and the late Pleistocene, 53 which coincides with aridification and the expansion of the deserts in northwestern China that 54 resulted in species diversification and habitat fragmentation. In addition, we speculate that the 55 deserts and the Helan Mountains acted as effective geographic barriers that led to intraspecific ...

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Allopatric divergence and regional range expansion of Juniperus sabina in China

Cited by 39 publications

References 54 publications

Long-Distance Dispersal after the Last Glacial Maximum (LGM) Led to the Disjunctive Distribution of Pedicularis kansuensis (Orobanchaceae) between the Qinghai-Tibetan Plateau and Tianshan Region

Long-Distance Dispersal after the Last Glacial Maximum (LGM) Led to the Disjunctive Distribution of Pedicularis kansuensis (Orobanchaceae) between the Qinghai-Tibetan Plateau and Tianshan Region

Phylogeographical structure inferred from cpDNA sequence variation of Zygophyllum xanthoxylon across north-west China

Intraspecific divergences and phylogeography of Panzerina lanata (Lamiaceae) in Northwest China

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