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  1. Article ; Online: Assembly and comparative analysis of the first complete mitochondrial genome of a traditional Chinese medicine Angelica biserrata (Shan et Yuan) Yuan et Shan.

    Wang, Le / Liu, Xue / Xu, Yuanjiang / Zhang, Zhiwei / Wei, Yongsheng / Hu, Ying / Zheng, Changbing / Qu, Xianyou

    International journal of biological macromolecules

    2023  Volume 257, Issue Pt 1, Page(s) 128571

    Abstract: Duhuo, a member of the Angelica family, is widely used to treat ailments such as rheumatic pain. It possesses a diverse array of bioactivities, including anti-tumor, anti-inflammatory, and analgesic properties, as recent pharmacological research has ... ...

    Abstract Duhuo, a member of the Angelica family, is widely used to treat ailments such as rheumatic pain. It possesses a diverse array of bioactivities, including anti-tumor, anti-inflammatory, and analgesic properties, as recent pharmacological research has revealed. Nevertheless, the mtDNA of Angelica species remains relatively unexplored. To address this gap, we sequenced and assembled the mtDNA of A. biserrata to shed light on its genetic mechanisms and evolutionary pathways. Our investigation indicated a distinctive multi-branched conformation in the A. biserrata mtDNA. A comprehensive analysis of protein-coding sequences (PCGs) across six closely related species revealed the presence of 11 shared genes in their mitochondrial genomes. Intriguingly, positive selection emerged as a significant factor in the evolution of the atp4, matR, nad3, and nad7 genes. In addition, our data highlighted a recurring trend of homologous fragment migration between chloroplast and mitochondrial organelles. We identified 13 homologous fragments spanning both chloroplast and mitochondrial genomes. The phylogenetic tree established a close relationship between A. biserrata and Saposhnikovia divaricata. To sum up, our research would contribute to the application of population genetics and evolutionary studies in the genus Acanthopanax and other genera in the Araliaceae family.
    MeSH term(s) Medicine, Chinese Traditional ; Angelica/genetics ; Phylogeny ; Genome, Mitochondrial/genetics ; DNA, Mitochondrial
    Chemical Substances DNA, Mitochondrial
    Language English
    Publishing date 2023-12-03
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.128571
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Uplift and Expansion of the North Qilian Shan Recorded by Detrital Fission Tracks in the Jiudong Basin, NW China

    Baotian Pan / Qiming Zhao / Xiaofei Hu / Jiaxin Zhang / Dianbao Chen

    Frontiers in Earth Science, Vol

    2022  Volume 9

    Abstract: The North Qilian Shan, located in the northeastern front of the Tibetan Plateau, is an ideal region ... evidence and an accurate age control. In the Jiudong Basin (foreland basin of the North Qilian Shan ... from the southern to the northern parts of the North Qilian Shan, and it indicates that the North Qilian Shan Fault ...

    Abstract The North Qilian Shan, located in the northeastern front of the Tibetan Plateau, is an ideal region to study the expansion process of the plateau, which is not clearly revealed due to the lack of direct evidence and an accurate age control. In the Jiudong Basin (foreland basin of the North Qilian Shan), a continuous late Cenozoic sedimentary sequence and a reliable chronostratigraphic framework (post-7 Ma) provide us the material to study this process. In this study, we first analyzed the provenance changes of the sediment by detrital apatite fission track age distributions and apatite particle textures. The result shows that the first provenance change occurred at 4.6–3.6 Ma, when the sediment source changed from the southern to the northern parts of the North Qilian Shan, and it indicates that the North Qilian Shan Fault had propagated to its modern location. The second provenance change occurred at 3.0–2.4 Ma, at when the Yumu Shan and its south region began to provide sediments for the Jiudong Basin, and it indicates that the tectonic deformation in the North Qilian Shan had expanded to the North Yumu Shan Fault. Our finding suggests that two significant expansion events happened since the Pliocene for the North Qilian Shan.
    Keywords North Qilian Shan ; Jiudong Basin ; apatite fission track ; provenance change ; Tibetan Plateau expansion ; Science ; Q
    Subject code 550
    Language English
    Publishing date 2022-02-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Tree-ring perspective on past and future mass balance of the glaciers in Tien Shan (Central Asia): An example from the accumulation area of Tuyuksu Glacier, Kazakhstan

    Chen, Youping / Opała-Owczarek, Magdalena / Chen, Feng / Owczarek, Piotr / Zhang, Heli / Wang, Shijie / Hu, Mao / Satylkanov, Rysbek / Ermenbaev, Bakytbek / Zulfiyor, Bakhtiyorov / Shang, Huaming / Zhang, Ruibo

    Palaeogeography, Palaeoclimatology, Palaeoecology. 2023 Sept., v. 625 p.111696-

    2023  

    Abstract: The Tien Shan glaciers, known as “Central Asia's Water Tower,” have a direct influence ... of the study could help to explain how the glacial mass balance has evolved in the Tien Shan Mountains ...

    Abstract The Tien Shan glaciers, known as “Central Asia's Water Tower,” have a direct influence on water resource management in downstream parched areas. The limited time periods of currently available observational climate datasets hamper an accurate examination of glacial changes in Central Asia in terms of long-term climate change implications. In this work, we analysed this change by combining tree-ring-based reconstructions of the accumulation area of the Tuyuksu Glacier during the last 382 years with models of the future mass balance of this glacier until the year 2100 CE. The results show that mountain precipitation is an important force driving the cycles of the cryosphere, biosphere and hydrosphere in arid Central Asia. This driving force has broad coherence in spatiotemporal variation, with periodic cycles and decadal shifts caused by the North Atlantic Oscillation and the El Niño-Southern Oscillation. The multi-model mean in CMIP6 suggests a downward trend in glacier mass balance until 2100, but this trend will be moderated by increased precipitation. The findings of the study could help to explain how the glacial mass balance has evolved in the Tien Shan Mountains of Central Asia throughout time and its relationship to biosphere and hydrosphere.
    Keywords North Atlantic Oscillation ; biosphere ; climate ; climate change ; data collection ; glaciers ; growth rings ; palaeogeography ; paleoclimatology ; paleoecology ; water management ; Kazakhstan ; Central Asia ; Tuyuksu glacier ; Mass balance reconstruction ; Tree-ring ; CMIP 6
    Language English
    Dates of publication 2023-09
    Publishing place Elsevier B.V.
    Document type Article ; Online
    ZDB-ID 417718-6
    ISSN 0031-0182
    ISSN 0031-0182
    DOI 10.1016/j.palaeo.2023.111696
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Active normal faulting along the Seerteng Shan, North China

    Rao, G. / He, C. / Chen, P. / Wu, Z. / Hu, J. / Yao, Q.

    Journal of Asian Earth Sciences

    Geometry and kinematics

    2019  

    Publishing country de
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Variable Thrust Rates of the Eastern Qilianshan Mountain Front, Northeastern Margin of the Tibet Plateau and Its Implication to the Topography of the Yongchangnan Shan

    Lei Jinghao / Li Youli / Ren Zhikun / Hu Xiu / Xiong Jianguo / Liu Fei / Liu Jinrui

    Frontiers in Earth Science, Vol

    2021  Volume 9

    Abstract: ... and its relationship with adjacent faults. The east Qilian Shan, located at the northeastern margin ... Shan. Another north bounding fault is the Kangningqiao Fault (KNF), east of the FF. Based ... of a single segmented thrust controlling the uplift of the Yongchangnan Shan. By comparing the uplift onsets ...

    Abstract It is commonly assumed a thrust has a constant slip and uplifting rate along strike, however, this simplified model cannot always be consistent with field observations. The along strike slip patterns with variable offsets and rates contain plenty of information about the characteristics of the faulting behavior and its relationship with adjacent faults. The east Qilian Shan, located at the northeastern margin of the Tibetan Plateau, provides us an excellent opportunity to study the faulting behavior in a thrust-bounded range area. Besides the previously reported slip rates of the N-W trending tectonics across the region, we augmented the data by surveying the Fengle fault (FF), one of the north bounding thrusts of the Yongchangnan Shan. Another north bounding fault is the Kangningqiao Fault (KNF), east of the FF. Based on the vertical offsets and rates along the fault, we constructed the slip pattern along strike. The results show the vertical slip rate of the FF ranges from 0.7 ± 0.1 mm/a to 2.8 ± 1.3 mm/a across three surveyed sites. The slip rate decreases from the east to the west. The FF and KNF might be inferred as two segments of a single segmented thrust controlling the uplift of the Yongchangnan Shan. By comparing the uplift onsets in the study region, we discuss the northeastward propagated deformation along the northeastern margin of the Tibet plateau.
    Keywords thrusting ; uplifting ; slip rate ; slip pattern ; relation between faults ; deformation propagation ; Science ; Q
    Subject code 550
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: Climatically- and tectonically-controlled development of the late quaternary alluvial fan in the north piedmont of Zhongtiao Shan (ZTS), north China

    Hu, Xiu / Li, Youli / Lv, Shenghua / Wang, Yiran / Xiong, Jianguo

    Quaternary international. 2021 Dec. 10, v. 604

    2021  

    Abstract: ... This study focused on the Lidian alluvial fan in the northern piedmont of Zhongtiao Shan, north China ...

    Abstract The evolution of alluvial fans is controlled by the tectonic setting and climatic fluctuations. This study focused on the Lidian alluvial fan in the northern piedmont of Zhongtiao Shan, north China, to study the fluvial responses to paleoenvironmental changes since the late Last Glacial Maximum. In combination with series of accelerator mass spectrometry (AMS) ¹⁴C dating data on fan sediments, sedimentary analyses indicated that the primary fan accumulation was controlled by episodic millennium-scale debris and sheet flood flow related aggradation during 13.3–13.0, 12.7–11.3, 6.2–4.5, and 4.5–2.8 cal ka BP. Between the accumulation periods, the fan process was dominated by aeolian paleosol-and-loess sequence development and the reworking of fan clasts. Considering regional hydraulic conditions and sediment flux, we proposed that the millennium-scale episodic debris flow related fan aggradation during 13.3–13.0, 12.7–11.3, and 4.5–2.8 cal ka BP was controlled by high-volume sediment influx of the permafrost and physical weathering during cold events. The millennium-scale sheet flood-dominated fan aggradation event during 6.2–4.5 cal ka BP was related to the abrupt coarsening and high sediment yield forced by tectonic uplift. We also suggest that the scattered distributed channelized floods and debris backfilling sediments within the fine-grain layers indicate that the deposition of irregular fan lobe accumulation coincided with hydraulic shifts over shorter temporal scales.
    Keywords cold ; evolution ; mass movement ; mass spectrometry ; paleoecology ; permafrost ; piedmont ; sediment yield ; sediments ; tectonics ; China
    Language English
    Dates of publication 2021-1210
    Size p. 51-59.
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 1040-6182
    DOI 10.1016/j.quaint.2021.07.009
    Database NAL-Catalogue (AGRICOLA)

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  7. Article: Using fluvial terraces as distributed deformation offset markers: Implications for deformation kinematics of the North Qilian Shan Fault

    Cao, Xilin / Hu, Xiaofei / Pan, Baotian / Zhao, Qiming / Chen, Tai'an / Ji, Xianghe / Zhao, Zhijun

    Geomorphology. 2021 Aug. 01, v. 386

    2021  

    Abstract: ... widespread along the northern front of the Qilian Shan, in the NE Tibetan Plateau. In the Daciyao River ... of the central North Qilian Shan, the East Yumu Shan Fault (EYF) splays into four parallel faults at the piedmont ...

    Abstract Knowledge of the kinematics of thrusts is the key to understanding mountain building processes in compressive ranges; however, relatively little attention has been paid to distributed deformation (on-fault and off-fault such as rotation and warping) across a thrust fault. Distributed deformation is widespread along the northern front of the Qilian Shan, in the NE Tibetan Plateau. In the Daciyao River, of the central North Qilian Shan, the East Yumu Shan Fault (EYF) splays into four parallel faults at the piedmont. The Daciyao River flows across the deformation zone and its terrace landform record provides a valuable geomorphic marker for reconstructing the cumulative deformation. Terrace deformation across the fault splays was estimated with measured longitudinal profiles using differential GPS, and the fault slip was reconstructed by applying the trishear model, a widely applied model used to explain the geometry of basement-related structures. At least 10 strath terraces are formed with bedrock bases developed into Neogene red beds along the mountain front. The age of one of the terraces (T8) was constrained by Optically Stimulated Luminescence (OSL) dating of the overlying aeolian loess, which provide a minimum age (68 ka) for the age of terrace abandonment. The survey data and trishear model results suggest that the fault splays are bending-moment faults (BMF), originating from a fault propagation fold. Based on the fault and fold geometry across the EYF, the total vertical slip rate is estimated as 0.9–1.2 mm/yr. Slip rates on the EYF are consistent along-strike during the Late Pleistocene but they are twice as high during the Holocene, indicating a high potential for large earthquakes along this fault. This work also indicates that to calculate accurate total slip rate, terrace heights must be measured outside of the distributed broad zone.
    Keywords Holocene epoch ; Neogene period ; Pleistocene epoch ; bedrock ; deformation ; geometry ; kinematics ; loess ; luminescence ; models ; piedmont ; rivers ; surveys ; China
    Language English
    Dates of publication 2021-0801
    Publishing place Elsevier B.V.
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 58028-4
    ISSN 0169-555X
    ISSN 0169-555X
    DOI 10.1016/j.geomorph.2021.107750
    Database NAL-Catalogue (AGRICOLA)

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  8. Article: Constraining Late Quaternary Crustal Shortening in the Eastern Qilian Shan From Deformed River Terraces

    Zhong, Yuezhi / Xiong, Jianguo / Li, Youli / Zheng, Wenjun / Zhang, Peizhen / Lu, Honghua / Liu, Qingri / Lei, Jinghao / Chen, Gan / Gong, Zheng / Hu, Xiu / Zhang, Huiping

    Journal of geophysical research. 2020 Sept., v. 125, no. 9

    2020  

    Abstract: The Qilian Shan, located in the northeastern Tibet, is under strong tectonic activity and ... earthquake motion due to the propagation of the plateau. At the mountain front of the eastern Qilian Shan ... Shan. Here we present a detailed record of seven strath terraces of this river that documents ...

    Abstract The Qilian Shan, located in the northeastern Tibet, is under strong tectonic activity and earthquake motion due to the propagation of the plateau. At the mountain front of the eastern Qilian Shan, the Tongziba River, in the southern Zhangye Basin, flows northward and successively cuts the Minle‐Damaying Fault and the Yonggu Anticline, two parallel structures within the Frontal Thrust system of the Qilian Shan. Here we present a detailed record of seven strath terraces of this river that documents the history of active deformation of the two structures. Based on the estimated crustal shortening distance from the deformed terraces and the terrace formation age constrained by AMS ¹⁴C and optically stimulated luminescence (OSL) dating, a horizontal slip rate of 1.4 ± 0.5 mm/year of the Minle‐Damaying Fault is constrained since 16.7 ± 1.8 kyr, and a shortening rate of 1.3 ± 0.4 mm/year across the Yonggu Anticline has been estimated in a similar time frame, respectively. In total, the shortening rate across the mountain front is estimated to be 2.7 ± 0.6 mm/year. GPS data show a similar modern shortening rate in this area, which indicates the rate of crustal shortening may be comparable in the modern and 10⁴‐year scales. Our study supports a higher crustal shortening rate along the mountain front of the eastern Qilian Shan than that of the western Qilian Shan since the Late Quaternary.
    Keywords basins ; deformation ; earthquakes ; geophysics ; luminescence ; research ; rivers ; tectonics ; China
    Language English
    Dates of publication 2020-09
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ISSN 2169-9313
    DOI 10.1029/2020JB020631
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Test on the Reliability of the Subsurface Fault Geometry Estimated by Deformed River Terraces Along the Bailang River, North Front of the Qilian Shan (North West China)

    Xiaofei Hu / Xianghe Ji / Xilin Cao / Jiuying Chen / Baotian Pan

    Frontiers in Earth Science, Vol

    2021  Volume 9

    Abstract: ... of the Qilian Shan. According to the deformation geometry of the terraces, the fold deformation is interpreted ... the thrust and fold at the west portion of the Yumu Shan range. ...

    Abstract The subsurface fault geometry is the base for understanding a process of crust deformation and mountain building. Based on kinematic models for fault-related folds, a geomorphic method is recently applied to estimate the subsurface fault geometry, while the validation on its reliability is lacking. In this study, we surveyed a suit of river terrace surfaces across an active fold at the north front of the Qilian Shan. According to the deformation geometry of the terraces, the fold deformation is interpreted by a listric fault fold model, and based on this kinematic model, the fault geometry underlying the fold is estimated. In comparison between the estimated fault geometry and a seismic reflection profile, we found that the decollement depth and the back thrust are highly consistent with each other. Although some small fault bends or internal shearing cannot be estimated solely by the terrace deformation, the overall fault geometry is successfully revealed by the terrace deformation. Using this fault geometry and the terrace dating results, the region deformation kinematics are re-evaluated, which suggest that the dip slip (in a rate of 1.8 ± 0.4 mm/a) along the decollement is mainly accommodated by two structures, one is the blind-back-thrust fault within the piggy basin in a dip-slip rate of 0.9 ± 0.3 mm/a and another is the thrust and fold at the west portion of the Yumu Shan range.
    Keywords terrace deformation ; fault-related fold ; geometric model ; Qilian Shan ; fault geometry ; Science ; Q
    Subject code 550
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article: Early 21st century glacier thickness changes in the Central Tien Shan

    Li, Jia / Bing Xu / Chun-lin Huang / Jian-jun Zhu / Jun Hu / Qi-jie Wang / Xin Li / Zhi-wei Li

    Remote sensing of environment. 2017 Apr., v. 192

    2017  

    Abstract: ... measurements have achieved region-wide glacier mass change for the Tien Shan, the dynamic process of glacier ... we investigated region-wide glacier thickness change in the Central Tien Shan (CTS) during 2000–2012 ... the glaciers in the CTS are more stable than those in other parts of the Tien Shan. However, the glacier state ...

    Abstract Although studies based on satellite gravimetry (2003−2010) and laser altimetry (2003–2009) measurements have achieved region-wide glacier mass change for the Tien Shan, the dynamic process of glacier yet to be closely monitored and understood so that its impact can be assessed accurately. In this study, we investigated region-wide glacier thickness change in the Central Tien Shan (CTS) during 2000–2012 by differencing the Shuttle Radar Topographic Mission (SRTM) digital elevation model (DEM) with a newly constructed DEM from 27 TanDEM-X images. For a total glacier area of 7239.8±527.2km2, an average glacier thickness change rate of −0.24±0.22m/a was derived. This result agrees well with the result based on satellite laser altimetry measurements reported earlier (−0.31±0.41m/a). With temporal synchronization, a fine spatial resolution and wide coverage, our measurements are able to reveal abundant glacier change features and dependencies in the CTS. Firstly, the lower mountains have seen a more severe glacier decline, and the glaciers facing the prevailing wind (westerlies) have experienced a greater decline because of the stronger evaporation. Furthermore, those glaciers lying along the extremely high Meridian mountain range have obviously gained mass in their upper reaches, because the air current from the west is blocked and lifted by the Meridian mountain range. Secondly, for the entire glacier body, the theoretical hyperbolic dependence between debris thickness and ice decline was very difficult to establish. Some huge glaciers covered by heavy debris have still experienced a severe decline. However, even though the heavy debris did not prevent the ablation, its attenuating effects were considerable. Thirdly, for the glaciers that surged before 2000, the mass gain in the restoring zones has not been enough to cover the mass loss in ablation zones. Some large glaciers surged again during 2000–2012; however, with much lower magnitudes than in previous surges. In general, the surge glaciers have experienced a greater decline than the non-surge glaciers. Fourthly, due to the ice front calving and subglacial thermal erosion, glaciers connected to proglacial lakes have receded and thinned much more rapidly than the land-terminated glaciers. Overall, the glaciers in the CTS are more stable than those in other parts of the Tien Shan. However, the glacier state there is still alarming. A moderate average thinning rate was derived because the drastic thinning in the ablation zones was balanced by the slight thinning in the broad accumulation zones.
    Keywords air ; calving ; digital elevation models ; evaporation ; glaciers ; gravimetry ; ice ; lakes ; mountains ; radar ; remote sensing ; satellites ; topography ; wind
    Language English
    Dates of publication 2017-04
    Size p. 12-29.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 431483-9
    ISSN 0034-4257
    ISSN 0034-4257
    DOI 10.1016/j.rse.2017.02.003
    Database NAL-Catalogue (AGRICOLA)

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