Silvae Genetica最新文献_第7页

Inheritance of the wood properties of the Japanese red pine (Pinus densiflora Siebold et Zucc.) from the open-pollinated families selected as resistance to the pine wood nematode 日本赤松(Pinus densiflora Siebold et Zucc.)开放性传粉科对松材线虫抗性的木材特性遗传

IF 1 4区农林科学

Silvae Genetica Pub Date : 2021-01-01 DOI: 10.2478/sg-2021-0016

F. Ishiguri, I. Nezu, R. Endo, Saki Kobayashi, A. Ngadianto, Daigo Narusawa, Yusuke Takahashi, J. Tanabe, Taiichi Iki, J. Ohshima, S. Yokota

{"title":"Inheritance of the wood properties of the Japanese red pine (Pinus densiflora Siebold et Zucc.) from the open-pollinated families selected as resistance to the pine wood nematode","authors":"F. Ishiguri, I. Nezu, R. Endo, Saki Kobayashi, A. Ngadianto, Daigo Narusawa, Yusuke Takahashi, J. Tanabe, Taiichi Iki, J. Ohshima, S. Yokota","doi":"10.2478/sg-2021-0016","DOIUrl":"https://doi.org/10.2478/sg-2021-0016","url":null,"abstract":"Abstract Pine wilt disease is one of the most serious tree diseases occurring worldwide. Clones of Pinus densiflora Siebold et Zucc with pine wood nematode resistance were selected. In addition to resistance, wood quality is also an important criterion in the breeding program of P. densiflora because of its use as construction lumber. However, little information is available on the wood qualities of the progenies of resistant clones. The repeatabilities of the wood properties were investigated for 11 open-pollinated families of P. densiflora selected for their pine wood nematode resistance. Oven-dry density, latewood tracheid length, the microfibril angle (MFA) of the S2 layer in latewood tracheids, modulus of elasticity (MOE), and modulus of rupture (MOR) were measured in the third or fourth annual ring from the pith. No significant correlations were found between the wood properties and the stem diameter or tree height. However, significant correlations were found between oven-dry density and MOE or MOR, which suggests that oven-dry density is a good indicator for selecting wood with higher bending properties. Among the measured wood properties, oven-dry density had the highest repeatability (R=0.47), followed by MOR (R=0.33), tracheid length (R=0.21), and MFA (R=0.14). MOE had the lowest value (R=0.01). The 11 families examined were classified into three groups according to their growth characteristics, wood properties, and resistance to pine wilt disease. On the basis of the results, we conclude that genetic improvement of wood properties especially for wood density and MOR is possible for the resistant P. densiflora.","PeriodicalId":21834,"journal":{"name":"Silvae Genetica","volume":"1 1","pages":"186 - 194"},"PeriodicalIF":1.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82172453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic structure and postglacial recolonization of Pinus sibirica Du Tour in the West Siberian Plain, inferred from nuclear microsatellite markers 基于核微卫星标记的西西伯利亚平原西伯利亚松遗传结构与冰期后再定殖

IF 1 4区农林科学

Silvae Genetica Pub Date : 2021-01-01 DOI: 10.2478/sg-2021-0008

D. Shuvaev, A. Ibe

引用次数: 4

Fate of forest tree biotechnology facing climate change 林木生物技术面临气候变化的命运

IF 1 4区农林科学

Silvae Genetica Pub Date : 2021-01-01 DOI: 10.2478/sg-2021-0010

M. R. Ahuja

{"title":"Fate of forest tree biotechnology facing climate change","authors":"M. R. Ahuja","doi":"10.2478/sg-2021-0010","DOIUrl":"https://doi.org/10.2478/sg-2021-0010","url":null,"abstract":"Abstract Woody plants have been cultured in vitro since the 1930s. After that time much progress has been made in the culture of tissues, organs, cells, and protoplasts in tree species. Tree biotechnology has been making strides in clonal propagation by organogenesis and somatic embryogenesis. These regeneration studies have paved the way for gene transfer in forest trees. Transgenics from a number of forest tree species carrying a variety of recombinant genes that code for herbicide tolerance, pest resistance, lignin modification, increased woody bio-mass, and flowering control have been produced by Agrobacterium-mediated and biolistic methods, and some of them are undergoing confined field trials. Although relatively stable transgenic clones have been produced by genetic transformation in trees using organogenesis or somatic embryogenesis, there were also unintended unstable genetic events. In order to overcome the problems of randomness of transgene integration and instability reported in Agrobacterium-mediated or biolistically transformed plants, site-specific transgene insertion strategies involving clustered regularly interspaced short palindromic repeats (CRISPR-Cas9) platform offer prospects for precise genome editing in plants. Nevertheless, it is important to monitor phenotypic and genetic stability of clonal material, not just under greenhouse conditions, but also under natural field conditions. Genetically modified poplars have been commercialized in China, and eucalypts and loblolly pine are expected to be released for commercial deployment in USA. Clonal forestry and transgenic forestry have to cope with rapid global climate changes in the future. Climate change is impacting species distributions and is a significant threat to biodiversity. Therefore, it is important to deploy Strategies that will assist the survival and evolution of forest tree species facing rapid climate change. Assisted migration (managed relocation) and biotechnological approaches offer prospects for adaptation of forest trees to climate change.","PeriodicalId":21834,"journal":{"name":"Silvae Genetica","volume":"31 1","pages":"117 - 136"},"PeriodicalIF":1.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82097252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Investigation of Clonal Structure and Self-incompatibility in Japanese Endemic Snow Camellia (Camellia rusticana) 日本特有雪茶树(Camellia rusticana)克隆结构及自交不亲和性研究

IF 1 4区农林科学

Silvae Genetica Pub Date : 2021-01-01 DOI: 10.2478/sg-2021-0011

Hiroki Kohama, Harue Abe, Y. Moriguchi

引用次数: 0

Eucalypts for Tropical Rainforest (Af) climate 桉树适合热带雨林(Af)气候

IF 1 4区农林科学

Silvae Genetica Pub Date : 2021-01-01 DOI: 10.2478/sg-2021-0014

A. Brune

引用次数: 1

Genetic comparison of planted and natural Quercus robur stands in Russia 俄罗斯人工栎树林与天然栎树林的遗传比较

IF 1 4区农林科学

Silvae Genetica Pub Date : 2020-12-25 DOI: 10.2478/sg-2021-0001

B. Degen, Y. Yanbaev, C. Blanc-Jolivet, R. Ianbaev, S. Bakhtina, M. Mader

引用次数: 4

Effect of witches’ broom mutation on growth of Pinus sibirica seedlings 女巫扫帚突变对西伯利亚松幼苗生长的影响

IF 1 4区农林科学

Silvae Genetica Pub Date : 2020-01-01 DOI: 10.2478/sg-2020-0017

G. Vasilyeva, E. Zhuk, S. Goroshkevich

引用次数: 0

Genetic diversity and structure of Oriental and European beech populations from Iran and Europe 伊朗和欧洲的东方和欧洲山毛榉种群的遗传多样性和结构

IF 1 4区农林科学

Silvae Genetica Pub Date : 2020-01-01 DOI: 10.2478/sg-2020-0008

M. M. Bijarpasi, Markus Müller, O. Gailing

{"title":"Genetic diversity and structure of Oriental and European beech populations from Iran and Europe","authors":"M. M. Bijarpasi, Markus Müller, O. Gailing","doi":"10.2478/sg-2020-0008","DOIUrl":"https://doi.org/10.2478/sg-2020-0008","url":null,"abstract":"Abstract Genetic variation is a major component of plant development and adaptation, and recent studies have shown that genetic variation among plant species can have important ecological effects. Oriental beech (Fagus orientalis Lipsky) is a dominant tree species in the Hyrcanian forests, where it occupies approximately 18 % of the forested area. In this study, nine expressed sequence tag simple sequence repeat (EST-SSR) markers were used to determine the genetic diversity and structure of Iranian Oriental beech populations growing at different altitudes. We further compared the genetic structures of the Iranian populations to a F. orientalis and a Fagus sylvatica L. population from the hybrid zone of the two taxa in southeast Europe, and to a F. sylvatica population from central Europe. All populations showed a high genetic diversity, which was similar to other F. orientalis and F. sylvatica populations from Europe. The genetic differentiation among Iranian beech populations was very low. In contrast, distinct genetic differentiation was found between the Iranian populations and the analyzed European populations (F. orientalis and F. sylvatica). One EST-SSR was identified to differentiate (GST: 0.503) between F. orientalis and F. sylvatica with very pronounced allele frequency differences between taxa. Specifically, the Fagus sylvatica characteristic allele 189 was almost absent from all Iranian populations and present in low frequencies in F. orientalis populations from other regions. This study helps to extend the knowledge of genetic diversity and genetic structure of Iranian Oriental beech populations. It further gives insights into the genetic differentiation between F. orientalis populations from the center and the edge of the species’ distribution range as well as between Oriental and European beech.","PeriodicalId":21834,"journal":{"name":"Silvae Genetica","volume":"22 1","pages":"55 - 62"},"PeriodicalIF":1.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82756707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Genetic control of coppice regrowth in Eucalyptus spp. 桉树矮枝再生的遗传控制。

IF 1 4区农林科学

Silvae Genetica Pub Date : 2020-01-01 DOI: 10.2478/sg-2020-0002

M. R. Amâncio, F. B. Pereira, J. Paludeto, Amanda Roberta Vergani, Odair Bison, F. S. B. Peres, E. Tambarussi

{"title":"Genetic control of coppice regrowth in Eucalyptus spp.","authors":"M. R. Amâncio, F. B. Pereira, J. Paludeto, Amanda Roberta Vergani, Odair Bison, F. S. B. Peres, E. Tambarussi","doi":"10.2478/sg-2020-0002","DOIUrl":"https://doi.org/10.2478/sg-2020-0002","url":null,"abstract":"Abstract Forest companies prefer a coppice system as a silvicultural strategy owing to its economic and sustainability advantages compared to developing new plantations for second rotations. However, studies aiming to determine the selection of superior genetic material for this management strategy are scarce. In this study, we evaluated five clonal tests of Eucalyptus spp. located in Itatinga and Angatuba, São Paulo State, Brazil, to determine the genetic correlations and control of productivity for regrowth management in two rotations. The volume (m3) and survival of the Eucalyptus spp. clonal tests were determined for the two rotations at 5.5 years of age. The experiments were carried out in a randomized block design with six replicates, five plants per plot, and unbalanced treatments. The heritability in the normal scale ( h^n2 hat h_n^2 ) for the survival ranged from 0.056 to 0.11, the heritability in the broad sense ( h^g2 hat h_g^2 ) ranged from 0.205 to 0.334, and the genotypic correlation was positive and high (0.71-0.86), and statistically significant to the genetic means for the two rotations. The ranking of the best clones in the second rotation was similar (76 %) to their ranking in the first selection. Thus, for the evaluated material, there was no need for the second measurement to obtain accurate selection when managing a coppice system.","PeriodicalId":21834,"journal":{"name":"Silvae Genetica","volume":"17 1","pages":"6 - 12"},"PeriodicalIF":1.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78368179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Marker-assisted selection in C. oleifera hybrid population 油桐杂交群体的标记辅助选择

IF 1 4区农林科学

Silvae Genetica Pub Date : 2020-01-01 DOI: 10.2478/sg-2020-0009

Jinling Feng, Ying Jiang, Zhijian Yang, SHI-PIN Chen, Y. El-Kassaby, Hui Chen

{"title":"Marker-assisted selection in C. oleifera hybrid population","authors":"Jinling Feng, Ying Jiang, Zhijian Yang, SHI-PIN Chen, Y. El-Kassaby, Hui Chen","doi":"10.2478/sg-2020-0009","DOIUrl":"https://doi.org/10.2478/sg-2020-0009","url":null,"abstract":"Abstract Marker-assisted selection (MAS) is implemented to improve Camellia oleifera yield and fruit attributes for meeting China’s increased demand for new varieties development. We conducted three-generational (G0, G1, and G2) hybridization (diallel mating) and selection experiment and used Sequence-Related Amplified Polymorphism (SRAP). SRAP markers to investigate their utility in a MAS framework. The utilized SRAP markers were instrumental in hybrid authenticity and the identification of matroclinal or patroclinal inheritance presence, thus guiding mating pair selection and direction (their role as male or females). Across the studied 3 generations, estimates of genetic diversity parameters showed steady increase with percentage increase of ((G0 to G1 and G1 to G2) 9.25 and 9.05: observed number of alleles; 3.12 and 7.80: means effective number of alleles; 12.35 and 22.34: Nei‘s gene diversity; and 14.21 and 21.77: Shannon‘s index), indicating lack of diversity reduction associated with selection. Estimates of genetic distance and their correlation with heterosis were useful in guiding selection of mating pairs for achieving the desired yield and fruit attributes (fruit diameter, height, weight, and index, peel thickness, number of seeds per fruit, seed weight per fruit, and seed rate). Most yield and fruit attributes exhibited high broad-sense heritability with increasing trend over generation intervals, indicating the increased potential of hybrid breeding for this species.","PeriodicalId":21834,"journal":{"name":"Silvae Genetica","volume":"6 1","pages":"63 - 72"},"PeriodicalIF":1.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73181095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5