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Root overlap and allocation of above- and belowground growth of European beech in pure and mixed stands of Douglas fir and Norway spruce

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Forest Ecosystems 2024年第5期11卷 591-602页

作者： Amani S.Lwila Christian Ammer oliver gailing Ludger Leinemann Martina Mund Department of Silviculture&Forest Ecology of the Temperate Zones University of GöttingenBüsgenweg 137077GöttingenGermany Center for Biodiversity and Sustainable Land-Use University of GöttingenBüsgenweg 137077GöttingenGermany Department of Forest Genetics and Forest Tree Breeding Faculty of Forest Sciences and Forest EcologyUniversity of GöttingenBüsgenweg 237077GöttingenGermany Forestry Research and Competence Centre Gotha Jägerstraße 1D-99867Germany

Site conditions and species identity have a combined effect on fine root growth of trees in pure and mixed ***,mechanisms that may contribute to this effect are rarely studied,even though they are essential to assess the potential of species to cope with climate *** study examined fine root overlap and the linkage between fine root and stem growth of European beech(Fagus sylvatica)growing in pure and mixed stands with Douglas fir(Pseudotsuga menziesii)or Norway spruce(Picea abies)at two different study sites in northwestern *** study sites represented substantially different soil and climate *** each site,three stands,and at each stand,three pairs of trees were *** the pure beech stand,the pairs consisted of two beech trees,while in the mixed stands each pair was composed of a beech tree and a *** each pair,three evenly spaced soil cores were taken monthly throughout the growing *** the pure beech stands,microsatellite markers were used to assign the fine roots to individual *** in stem diameter of beech were quantified and then upscaled to aboveground wood productivity with automatic high-resolution circumference *** found that fine root overlap between neighboring trees varied independently of the distance between the paired trees or the stand types(pure versus mixed stands),indicating that there was no territorial *** wood productivity(wood NPP)and fine root productivity(root NPP)showed similar unimodal seasonal patterns,peaking in ***,this pattern was more distinct for root NPP,and root NPP started earlier and lasted longer than wood *** influence of site conditions on the variation in wood and root NPP of beech was stronger than that of stand *** NPP was,as expected,higher at the richer site than at the poorer *** contrast,root NPP was higher at the poorer than at the richer *** concluded that beech can respond to limited resources

关键词： Fine root growth Stem growth Trade-off Cost-benefit ratio Belowground territoriality Conspecific neighbors Heterospecific neighbors

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Genotyping by sequencing reveals lack of local genetic structure between two German Ips typographus ***

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Forestry Research 2022年第1期2卷 1-5页

作者： Markus Müller Mathias Niesar Ignaz Berens oliver gailing Forest Genetics and Forest Tree Breeding Faculty for Forest Sciences and Forest EcologyUniversity of GöttingenBüsgenweg 237077 GöttingenGermany Center for Integrated Breeding Research(CiBreed) University of Goettingen37073 GöttingenGermany Landesbetrieb Wald und Holz NRW Team Forest and Climate ProtectionSteinmüllerallee 1351643 GummersbachGermany Landesbetrieb Wald und Holz NRW Nationalparkforstamt EifelUrftseestraße 3453937 Schleiden

The European spruce bark beetle(Ips typographus L.)is a serious pest in Norway spruce *** usually attacking freshly fallen trees or trees with a reduced defense system,also healthy trees can be infested during massive outbreaks of *** that can occur after catastrophic events such as drought periods or *** of the genetic structure of this species,especially on local scales is still *** local population structure was reported in some studies,others did not detect any differentiation among *** ***,we used genotyping by sequencing to infer the genetic structure of two *** populations in western Germany,which had a distance of approx.58 km from each *** on 16,830 SNPs we detected high genetic diversity,but very low genetic differentiation between the populations(F_(ST):0.001)and a lack of population *** results suggest a high dispersal ability of ***.

关键词： structure local structure

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Genetic diversity of Mansonia altissima A. Chev. under different regimes of human impact in the Akure Forest Reserve,Nigeria

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Forestry Studies in China 2010年第4期12卷 193-200页

作者： Akindele AKINNAGBE oliver gailing Reiner FINKELDEY Department of Forest Genetics and Forest Tree Breeding Georg August University

Mansonia altissima is an important West African timber tree species. For the purpose of examining the effect of human impact on its genetic diversity, genetic diversity and spatial genetic structure of the species under different regimes of human impact were investigated in the Akure Forest Reserve, Nigeria, using 504 amplified fragment length polymorphism （AFLP） markers. The results indicate a very low genetic diversity in M. altissima within the forest reserve （He = 0.045; PPL = 16.75%; Br = 1.162）. The highest genetic diversity was observed in the primary forest （H e= 0.062; PPL - 21.00%; Br = 1.204）, with the lowest genetic diversity in the isolated forest patch （He = 0.032; PPL = 9.00%; B r= 1.089）. A significant and pronounced spatial genetic structure was found in the logged forest and in the isolated forest patch. In contrast, the primary forest exhibited very weak spatial genetic structuring. As expected, no spatial genetic structure was found in the planted stands of M. altissima. From a conservation point of view, our results suggest that genetic diversity ofM. altissima is at risk in the forest reserve. The scale of human impact in the study area could pose a serious threat to the maintenance of genetic diversity of the species. These results would offer practical applications in the conservation of other tropical tree species.

关键词： AFLP Mansonia altissima human impact genetic diversity spatial genetic structure tropical rainforests

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Transferability and application of microsatellites(SSRs)from Juniperus communis *** Juniperus procera *** endl.

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Open Journal of Genetics 2013年第2期3卷 115-126页

作者： Demissew Sertse oliver gailing Nicolas-George Eliades Reiner Finkeldey Ethiopian Institute of Agricultural Research Holetta CenterForestry Research DivisionAddis AbabaEthiopia Department of Tree Breeding and Forest Genetics Georg-August University of GoettingenGottingenGermany School of Forest Resource and Environmental Science Michigan Technological UniversityHoughtonUSA

Transferability of five nuclear microsatellite markers (Jc-16, Jc-31, Jc-32, Jc-35 and Jc-37) that were originally developed for J. communis was tested to J. procera. Jc-31 & Jc-37 showed successful amplifications and polymorphism in J. procera. Jc-35 which had been reported as polymorphic in J. communis was monomorphic in J. procera while the primer pair for Jc-32 failed to record any amplification. The remaining one primer pair (Jc-16) showed double loci ampli-fication in both J. procera and the control J. communis suggesting further examination of the primer pair and its binding sites. Genetic variation of six Ethiopian J. procera populations: Chilimo, Goba, Menagesha-Suba, Wef-Washa, Yabelo and Ziquala was assessed based on the two polymorphic loci (Jc-31 & Jc-37) in 20 - 24 individuals of each population. From these two loci, a total of 41 alleles could be retrieved. Two populations that are located south east of the Great Rift Valley together harboured 75% of private alleles signifying their deviant geo-ecological zones and suggesting special consideration for conservation. Chilimo, which is at the western margin of Juniper habitat in Ethiopian central highlands scored the highest fixation (FIS = 0.584) entailing lower immigrant genes and hence higher inbreeding. The AMOVA revealed that 97% of the variation resided within the?population while still among population variation was significant

关键词： Ethiopia Juniperus communis Microsatellites Transferability

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Current status and trends in forest genomics

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Forestry Research 2022年第1期2卷 99-120页

作者： Dulal Borthakur Victor Busov Xuan Hieu Cao Qingzhang Du oliver gailing Fikret Isik Jae-Heung Ko Chenghao Li Quanzi Li Shihui Niu Guanzheng Qu Thi Ha Giang Vu Xiao-Ru Wang Zhigang Wei Lin Zhang Hairong Wei Department of Molecular Biosciences and Bioengineering University of Hawaii at Manoa1955 East-West RoadHonoluluHI 96822USA College of Forest Resources and Environmental Science Michigan Technological UniversityHoughtonMI 49931USA Forest Genetics and Forest Tree Breeding Faculty for Forest Sciences and Forest EcologyUniversity of GöttingenBüsgenweg 237077 GöttingenGermany National Engineering Research Center of Tree Breeding and Ecological Restoration College of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083P.R.China Cooperative Tree Improvement Program North Carolina State UniversityRaleighNC 27695USA Department of Plant&Environmental New Resources Kyung Hee University1732 Deogyeong-daeroYongin 17104Republic of Korea State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin 150040P.R.China State Key Laboratory of Tree Genetics and Breeding Chinese Academy of ForestryBeijing 100093P.R.China Department of Ecology and Environmental Science UmeåPlant Science CentreUmeåUniversityUmeå90187Sweden College of Life Sciences Heilongjiang UniversityHarbin 150080P.R.China Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees Ministry of EducationCentral South University of Forestry and TechnologyChangsha 410004Hunan ProvinceP.R.China

Forests are not only the most predominant of the Earth's terrestrial ecosystems,but are also the core supply for essential products for human ***,global climate change and ongoing population explosion severely threatens the health of the forest ecosystem and aggravtes the deforestation and forest *** genomics has great potential of increasing forest productivity and adaptation to the changing *** the last two decades,the field of forest genomics has advanced quickly owing to the advent of multiple high-throughput sequencing technologies,single cell RNA-seq,clustered regularly interspaced short palindromic repeats(CRISPR)-mediated genome editing,and spatial transcriptomes,as well as bioinformatics analysis technologies,which have led to the generation of multidimensional,multilayered,and spatiotemporal gene expression *** technologies,together with basic technologies routinely used in plant biotechnology,enable us to tackle many important or unique issues in forest biology,and provide a panoramic view and an integrative elucidation of molecular regulatory mechanisms underlying phenotypic changes and *** this review,we recapitulated the advancement and current status of 12 research branches of forest genomics,and then provided future research directions and focuses for each ***,a shift from simple biotechnology-based research to advanced and integrative genomics research,and a setup for investigation and interpretation of many spatiotemporal development and differentiation issues in forest genomics have just begun to emerge.

关键词： forest routine biotechnology

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