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Involucre fossils of carpinus,a northern temperate element,from the Miocene of China and the evolution of its species diversity in East Asia

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Plant Diversity 2020年第3期42卷 155-167页

作者： Li Xue Linbo Jia Gi-soo Nam Yongjiang Huang Shitao Zhang Yuqing Wang Zhuo Zhou Yongsheng Chen College of Land Resources and Engineering Kunming University of Science and TechnologyKunming650032China CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming650204China Gongju National University of Education 27Ungjin-roGongju-siChungcheongnam-do32553Republic of Korea Graduate School of Horticulture Chiba University648 MatsudoChiba271-8510Japan College of Life Science Northeast Agricultural UniversityHarbin150030HeilongjiangPR China

East Asia has long been recognized as a major center for temperate woody plants *** several theories have been proposed to explain how the diversity of these temperate elements accumulated in the region,the specific process remains *** we describe six species of carpinus,a typical northern hemisphere temperate woody plant,from the early Miocene of the Maguan Basin,southwestern China,southern East *** constitutes the southernmost,and the earliest occurrence that shows a high species diversity of the *** with other carpinus fossil records from East Asia,we show that the genus had achieved a high diversity in East Asia at least by the middle *** the six species here described,three have become extinct,indicating that the genus has experienced apparent species loss during its evolutionary history in East *** contrast,the remaining three species closely resemble extant species,raising the possibility that these species may have persisted in East Asia at least since the early *** findings indicate that the accumulation of species diversity of carpinus in East Asia is a complex process involving extinction,persistence,and possible subsequent speciation.

关键词： carpinus East Asia Extinction Temperate woody plants Species diversity

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Thinning effects on biomass and element concentrations of roots in adjacent hornbeam and oak stands in Istanbul,Turkey

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Forest Ecosystems 2021年第1期8卷 1-10页

作者： Serdar Akburak Ender Makineci Faculty of Forestry Soil Science and Ecology DepartmentIstanbul University-Cerrahpasa34473 BahcekoySariyerIstanbulTurkey

Background:Thinning is a commonly used treatment in forest management which affects the tree root *** effects of thinning on element concentrations and seasonal change of roots were evaluated in adjacent oak(Quercus frainetto Ten.)and hornbeam(carpinus betulus L.)stands according to the different root diameter ***:Two replicated control and thinning plots(50m×50 m)were set for each species(hornbeam and oak).Thinning treatments(November 2010)reduced 50%of the basal area in both oak and hornbeam *** were assessed by seasonal collection over 2 years(from October 2010 to October 2012).The roots were then sorted into diameter classes of 0–2mm(fine roots),2–5mm(small roots)and>5mm(coarse roots).C,N,P,K,Ca,Na,Mg,S,Mn,Fe,Al,Zn,Pb,Ni,Cu and Cd were ***:Except coarse roots,the highest root biomasses were determined in April-2011 in all ***-root biomass in oak was found significantly higher in control *** contrast to the oak,the fine-root biomass in the thinned hornbeam plots was higher than in the *** small-root biomass did not significantly differ between the thinned and the control plots in both oak and hornbeam ***,the coarse-root biomass showed significant differences between the control(1989 g∙m^(−2))and thinned plots(1060 g∙m^(−2))in oak,while no difference was detected in *** concentrations of C,Al,Pb,Cd,Ni,Zn,Mn,Na,K,Mg and P in the fine roots of oak were significantly higher in the thinned ***,the concentration of Pb,Cd and Fe in the fine roots was significantly higher in the thinned plots of *** differences were observed between the species for all elements in the fine roots except for C,N and *** particular,elements in the fine roots tended to increase in July in the *** the hornbeam,all element concentrations in the fine roots(except C,N,and S)in the thinned plots showed a tendency to increase in *** concentrations of Pb,Ni,Al,Fe,Cu,Ca,Na,K,Mg and

关键词： carpinus Coarse root Fine root Quercus Small root

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基于nrDNA ITS序列分析蒙山鹅耳枥与鹅耳枥亲缘关系

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山东林业科技 2018年第3期48卷 29-31,38页

作者：闵现东高远钱长照赵卫光刘建费县国有塔山林场山东费县273400 山东省水土保持与环境保育重点实验室/临沂大学资源环境学院山东临沂276005 临沂市科学探索实验室山东临沂276037

以采自蒙山的蒙山鹅耳枥和鹅耳枥各5株为试材,进行核糖体DNA(nrDNA)内转录间隔区(ITS)序列检测,并将ITS序列导入NCBI数据库比对,分析蒙山鹅耳枥和鹅耳枥亲缘关系。结果显示:1)蒙山鹅耳枥和鹅耳枥ITS序列高度相似,601个碱基序列中只有1... 详细信息

以采自蒙山的蒙山鹅耳枥和鹅耳枥各5株为试材,进行核糖体DNA(nrDNA)内转录间隔区(ITS)序列检测,并将ITS序列导入NCBI数据库比对,分析蒙山鹅耳枥和鹅耳枥亲缘关系。结果显示:1)蒙山鹅耳枥和鹅耳枥ITS序列高度相似,601个碱基序列中只有1个碱基差别。2)蒙山鹅耳枥ITS序列与NCBI数据库中carpinus *** 9187(编号EJ011711729.1)序列相似度为100%,与同属近缘种鹅耳枥序列相似度为99%。结论:1)蒙山鹅耳枥是独立物种。2)蒙山鹅耳枥不再属于山东特有物种,分布区除蒙山外韩国也可见其分布。

关键词：蒙山鹅耳枥 ITS carpinus sp.Wen

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