搜索结果: 1-15 共查到“知识库 生物学 QTL”相关记录48条 . 查询时间(0.062 秒)
根系是植物吸收土壤中水分和矿质营养的重要器官, 影响植物的整体生长发育。侧根是植物根系构型的重要因素。植物光合作用产物——糖在侧根原基(LRP)的起始、形成以及伸长阶段发挥了关键作用。本研究发现拟南芥(Arabidopsis thaliana)生态型Bayreuth (Bay-0)和Shahdara (Sha)在侧根发育对葡萄糖的响应中存在显著差异, 利用Bay-0×Sha重组自交系(RIL)群体...
玉米穗粗性状的全基因组关联分析及QTL元分析
玉米 穗粗 全基因组关联分析 元分析
2018/12/4
玉米(Zea mays)是全世界总产量最高的粮食作物, 穗粗是玉米单株产量的重要指标。利用FarmCPU软件对292份玉米自交系进行全基因组关联分析(GWAS), 筛选到28个显著性单核苷酸多态性(SNP)位点。借助IBM2 2008 Neighbors高密度图谱整合了2007~2015年文献发表的105个玉米穗粗性状的数量性状基因座(QTL), 采用元分析的方法, 确定了10个与穗粗相关的“一致...
Salinity Tolerance and Na Exclusion in Wheat: Variability, Genetics, Mapping Populations and QTL Analysis
genetics mapping populations Na + exclusion QTL analysis salinity tolerance variability
2014/2/25
A wide range of variability in both Naexclusion and salinity tolerance was shown in Triticum dicoccoides and the best performing genotype, from Getit, was identified for further study andfor crossing....
以我国高产籼稻特青和美国优质粳稻Lemont为亲本培育的双向回交导入系为材料,采用单核苷酸多态性标记定位源相关性状(剑叶长、剑叶宽、剑叶面积、叶干重和比叶重)和库相关性状(穗总粒数、千粒重和穗实粒重)的QTL。特青剑叶长、穗总粒数和穗实粒重显著大于Lemont,剑叶宽则显著小于Lemont。双向导入系群体检测到影响源、库相关性状的QTL 62个,平均每个QTL解释群体表型变异的9.0%,变幅为3....
Evaluation of BTA1 and BTA5 QTL Regions for Growth and Carcass Traits in American and Korean Cattle
Quantitative Trait Loci Microsatellite Markers SNPs Carcass Traits
2016/5/10
Previously identified QTL regions on BTA1 and BTA5 were investigated to validate the QTL regions and to identify candidate genes for growth and carcass traits in commercial cattle populations from the...
Identification of Candidate Genes Associated with Beef Marbling Using QTL and Pathway Analysis in Hanwoo (Korean Cattle)
Hanwoo Marbling QTL Fine Mapping
2016/5/9
Marbling from intramuscular fat is an important trait of meat quality and has an economic benefit for the beef industry. Quantitative trait loci (QTL) fine mapping was performed to identify the marbli...
株高是典型的数量性状, 易受遗传背景的干扰和环境因素的影响, 利用单片段代换系(single segment substitution lines, SSSLs)能减少遗传背景的干扰。以85个单片段代换系为材料, 其受体亲本为籼稻广陆矮4号(Oryza sativa ssp. indica), 供体亲本为粳稻日本晴(Oryza sativa ssp. japonica)。通过单因素方差分析和Dun...
Detection of QTL for Carcass Quality on Chromosome 6 by Exploiting Linkage and Linkage Disequilibrium in Hanwoo
QTL, Linkage Disequilibrium, Carcass Trait, Hanwoo, SNP
2016/5/9
The purpose of this study was to improve mapping power and resolution for the QTL influencing carcass quality in Hanwoo, which was previously detected on the bovine chromosome (BTA) 6. A sample of 427...
控制玉米雄穗分枝数目和雄穗重的主效QTL的定位
玉米 QTL定位 雄穗分枝数 雄穗重
2011/11/7
利用2套具有共同亲本黄早四且分别含有230个及235个家系的F2:3群体, 结合2年多点的表型鉴定, 运用完备复合区间作图方法对不同生态环境下(2007-北京、2008-北京、2007-河南、2008-河南、2007-新疆以及2008-新疆)的玉米雄穗分枝数和雄穗重进行QTL定位。同时, 利用基于混合线性模型的QTLNetwork-2.0软件进行基因×环境互作及上位性分析。6个环境下2个群体共检测...
关联图分析: 一种基于连锁图的QTL综合分析方法
连锁图 数量性状基因座 统合分析 关联图分析
2013/9/6
通过统合分析整合多个独立实验QTL (quantitative trait locus)定位结果获得的一致性QTL, 可为标记辅助育种和基因图位克隆提供坚实基础. 但是这种方法没有充足的生物学背景支撑, 而且遗传图谱间不同映射会严重影响分析结果. 为此, 本文提出一种基于连锁图的QTL综合分析法, 简称关联图分析. 首先, 利用连锁群构建图模型; 然后, 利用非监督分类法来寻找基因组间具有模式性共...
Identification of Candidate SNP (Single Nucleotide Polymorphism) for Growth and Carcass Traits Related to QTL on Chromosome 6 in Hanwoo (Korean Cattle)
SNP QTL BTA6 Growth Hanwoo
2016/4/28
As genetic markers, single nucleotide polymorphisms (SNP) are very appropriate for the development of genetic tests for economic traits in livestock. Several microsatellite markers have been identifie...
Detection of QTL on Bovine X Chromosome by Exploiting Linkage Disequilibrium
Quantitative Trait Loci Linkage Disequilibrium Bovine X Chromosome
2016/4/27
A fine-mapping method exploiting linkage disequilibrium was used to detect quantitative trait loci (QTL) on the X chromosome affecting milk production, body conformation and productivity traits. The p...
摘要用可溶性固形物含量高、薄皮、感枯萎病的栽培西瓜自交系(Citrullus lanatus var.lanatus)97103和可溶性固形物含量低、皮厚、抗病的野生西瓜种质(Citrullus lanatus var.citroides)PI296341杂交所得F~2|的118个单株为作图群体,通过构建分子连锁图谱,对西瓜主要果实性状可溶性固形物含量、果皮硬度、果皮厚度、单果重、种子千粒重进行区...