搜索结果: 31-45 共查到“知识库 林木遗传学”相关记录88条 . 查询时间(5.422 秒)
Adaptation of larch (Larix decidua) of Polish provenances under mountainous conditions of Beskid Sądecki (southern Poland)
European larch provenance genotype planting experiment Beskid Są decki Mts. Poland
2015/2/2
A long-term study carried out within the 1967 All-Poland Larch Provenance Experiment investigated genetic variation in 20 Polish provenances of larch growing under the site conditions of the Beskid S&...
Genetic basis of pathogen community structure for foundation tree species in a common garden and in the wild
common garden and wild contrasts community genetics cottonwoods, density effects
2015/11/13
Genetic variation within and among foundation plant species is known to affect arthropod, plant and soil
microbial communities. We hypothesized that the same would be expected for pathogen communitie...
利用RAMP-PCR技术对枸杞10个品种资源的分析
RAMP-PCR技术 枸杞 品种资源 分析
2011/8/30
以枸杞为材料，建立基因组DNA的有效提取方法，并对10个枸杞品种进行了RAMP技术分析研究。结果表明，利用10对引物共扩增出87个条带，其中多态性条带53个；多态性条带比率33.3%~81.9%，10个枸杞品种间的遗传距离为0.1111~0.8333；研究表明，利用RAMP进行枸杞的品种DNA指纹分析是可行的。
铬胁迫对罗汉果幼苗生理生化指标的影响
保护酶 生理生化 铬离子
2011/9/5
重金属铬对植物的生长发育有非常重要的抑制作用。但是至今为止还没有铬对我国特有药用植物罗汉果植物影响的生理生化机理研究的报道。本实验以罗汉果幼苗为材料，对生长在添加0、50、100、150、200μmol?L-1浓度的重金属铬离子的培养基中生长15天的罗汉果幼苗的相关生理生化变化进行了详尽的分析变化。结果表明，随着铬离子浓度的增加，植株叶片的叶绿素含量、蛋白质含量、可溶性糖含量、超氧物歧化酶活性、过...
利用FsLinkageMap2.0和JoinMap4.0软件构建响叶杨×银白杨F1遗传整合图谱，在重组率为0.245时，二者构建的遗传框架图都包含20个主要的连锁群（4个以上标记），但2个遗传框架图的图距大小差异显著，利用JoinMap4.0构建的遗传图谱的标记排列顺序更加符合杨树一致性图谱上的标记排列顺序。估计杨树基因组总长度为2 695.56 cM，图谱的基因组覆盖度为93.34%。将利用Ma...
不同激素种类和配比对秤锤树愈伤组织诱导的影响研究
秤锤树 愈伤组织 诱导
2009/12/7
［目的］ 为秤锤树的组培快繁提供依据。［方法］ 以WPM培养基为基本培养基，秤锤树叶片为外植体，比较了不同激素及其组合对秤锤树愈伤组织诱导的影响。［结果］ 不同浓度2,4D诱导出的愈伤组织呈褐色透明的水渍状，放置约40 d后逐渐褐化并坏死；2.0 mg/L 2,4D和不同浓度KT的激素组合诱导出的愈伤组织呈乳白色的致密颗粒状或团块状。单独使用6BA未诱导出愈伤组织，6BA和NAA的...
山榛中异戊烯焦磷酸异构酶基因的克隆及分析
紫杉醇 山榛 RACE 异戊烯焦磷酸异构酶
2009/10/23
采用RACE技术首次报道从产紫杉醇物种山榛中克隆出异戊烯焦磷酸异构酶基因（命名为CgIPI, GenBank登录号为EF553533）,该基因全长为1 196 bp,其中编码区为891 bp,编码一个由296个氨基酸组成的蛋白质.推导出的CgIPI氨基酸序列与其他植物IPI有很高的同源性.Southern blot分析表明,CgIPI基因属于一个小的多基因家族.RT-PCR分析表明,CgIPI基因...
Clone Identification of a Cutting Cultivar Shakain Using Cleaved Amplified Polymorphic Sequence Markers in Cryptomeria japonica
CAPS marker clone classification Cryptomeria japonica D.Don cutting cultivar Shakain
2009/8/28
Shakain is one of the cutting cultivars of Cryptomeria japonica in Kumamoto Prefecture. We established a clone classification system using the CAPS (Cleaved Amplified Polymorphic Sequences) markers fo...
Experimental Verification of Induced Resistance after Pre-inoculation with Avirulent Pine Wood Nematode Isolates with Consideration of Genetic Factors in Japanese Black Pine
Bursaphelenchus xylophilus induced resistance pine wilt disease Pinus thunbergii
2009/8/27
We tested for induced resistance, a phenomenon by which pine trees inhibit symptoms of pine wilt disease after pre-inoculation with avirulent isolates from pine wood nematodes (Bursaphelenchus xylophi...
Cytological and Genetical Studies on Male Sterile Sugi (Cryptomeria japonica D.Don),Shindai 1 and Shindai 5
Cryptomeria inheritance male sterility pollen
2009/8/24
Male sterile sugi (Cryptomeria japonica D. Don) trees, “Shindai 1,” “Shindai 5,” were found in Niigata Prefecture, Japan. There were no significant differences in the appearances of male flowers and n...
Predicting Chamges in Suitable Habitats for Beech (Fagus crenata Blume) Forests under Climate Warming in Shirakami Mountains World Natural Heritage Area,Northern Japan
altitudinal distribution classification tree model climate change scenarios predictive distribution model warmth index
2009/8/24
Suitable habitats for beech (Fagus crenata Blume) forests in the year 2100 were predicted in Shirakami Mountains, using a classification tree model and two climate change scenarios (RCM20 and CCSR/NIE...
Genetic Variation and Genotype-environment Interaction in Annual Ring Structure in Progeny Test of Plus Trees of Sakhalin Fir (Abies sachalinensis)
annual ring structure genotype-environment interaction heritability x-ray densitometry
2009/8/24
For improving the wood properties of Sakhalin fir (Abies sachalinensis) variation in annual ring structure and genetic variation in different environments were examined by X-ray densitometry. The spec...
DNA分子标记在麻疯树遗传多样性研究中的应用
麻疯树 分子标记 遗传多样性
2009/7/1
在综述几种常用分子标记的基础上，介绍目前麻疯树遗传多样性研究中DNA分子标记的应用概况。
[ 目的] 对姬松茸中分离的gpd 启动子片段进行序列分析。[ 方法] 根据报道的gpd 启动子序列设计合成1 对引物, 以姬松茸基
因组DNA 为模板, 采用PCR 扩增法克隆得到了2 条DNA 特异性片段, 并利用启动子信号扫描和启动子预测程序对2 条序列的片段启动子区和转录结合位点进行分析。[ 结果] 测序结果表明,2 条序列分别为372 bp 和614 bp , 分别命名为J- gpd ...