搜索结果: 1-15 共查到“农学 QTLs”相关记录44条 . 查询时间(0.078 秒)
Identification of candidate genes for key fibre-related QTLs and derivation of favourable alleles in Gossypium hirsutum recombinant inbred lines with G. barbadense introgressions
海岛棉 基因组组分 遗传作图群体
2024/5/17
该研究以渗入了海岛棉基因组组分的优质种质鲁原343为亲本，构建了包含239个重组自交系的遗传作图群体，利用SLAF标签构建了高密度遗传图谱，结合7个环境的表型数据，共鉴定104个纤维品质和产量性状QTLs，其中66个QTL共定位于19个QTL簇中。该研究团队通过进一步对鲁原343进行全基因组深度测序，解析鲁原343的遗传组成及其对纤维相关性状的遗传贡献，发现来自G. hirsutum races（...
QTLs identification for nitrogen and phosphorus uptake-related traits using ultra-high density SNP linkage
QTL F2 populations QTL mapping Nitrogen Phosphorus Rice
2023/4/21
To understand the genetic basis of nitrogen and phosphorus uptake in the cultivated rice, quantitative trait loci (QTL) analysis for 7 nitrogen and phosphorus uptake-related traits including above-gro...
Detection of QTLs for important agronomical traits in hexaploid wheat using association analysis
agronomical traits microsatellite markers QTLs Tassel Triticum aestivum
2014/2/24
One of the main wheat breeder’s goals is determining specific genomic regions which control important agronomical traits. Association analysis is a new strategy with high resolution in plant molecular...
CSB22sh为以陆地棉（Gossypium. hirsutum L.）遗传标准系TM-1为背景的第22染色体短臂被海岛棉（Gossypium. barbadense L.）Pima3-79置换的海陆置换系。TM-1与CSB22sh杂交，构建了104个F2单株的作图群体，应用6748对SSR引物对亲本进行分子标记筛选，获得90个多态性标记位点。其中85个标记位点构建了总长85.24 cM的遗传图谱...
Identification of the QTLs for grain yield using RIL population under different nitrogen regimes in maize
Maize (Zea mays L.) grain yield quantitative trait locus
2011/1/12
Quantitative trait locus (QTL) mapping can provide useful information for breeding programs, since it allows the estimation of genomic locations and genetic effects of chromosomal regions related to t...
Genetic Studies of Two QTLs for Rice Stripe Resistance Identified in Japanese Upland Rice Line, Kanto 72
near-isogenic lines quantitative trait loci rice breeding
2010/10/25
Quantitative trait locus (QTL) analysis was performed to identify the chromosomal region controlling rice stripe virus (RSV) resistance in Japanese upland rice, Kanto 72. As a result, two QTLs were de...
【目的】利用盐敏感的栽培种番茄（Solanum lycopersicum）M82与耐盐的野生种潘那利番茄（Solanum pennellii）LA716构建的渐渗系群体,对苗期耐盐QTLs进行定位,并初步分析QTL遗传效应和互作效应。【方法】将4片真叶幼苗移栽到1/2浓度的Hoagland营养液中,按一定浓度逐日增加盐,至终盐浓度700 mmol?L-1 NaCl＋70 mmol?L-1 CaCl...
【目的】利用盐敏感的栽培种番茄（Solanum lycopersicum）M82与耐盐的野生种潘那利番茄（Solanum pennellii）LA716构建的渐渗系群体,对苗期耐盐QTLs进行定位,并初步分析QTL遗传效应和互作效应。【方法】将4片真叶幼苗移栽到1/2浓度的Hoagland营养液中,按一定浓度逐日增加盐,至终盐浓度700 mmol?L-1 NaCl＋70 mmol?L-1 CaCl...
以陕西省甘泉白绒山羊场4个已知在标记位点(即运铁蛋白、前白蛋白-3、酯酶D及亮氨酸氨肽酶)为杂合子的4个公羊随机交配产生的80只后代(2.5岁以上)家系资料为研究对象,其产绒量和体重取决于羊场生产记录,目的是寻找与绒山羊产绒量和体重的数量性状位点(QTL)相连锁的标记基。
温室黄瓜产量相关农艺性状QTLs的定位
黄瓜 重组自交系 产量相关性状 QTL定位
2010/3/17
【目的】秋冬茬和冬春茬是目前中国日光温室黄瓜栽培的两种重要茬口,对两茬黄瓜产量相关性状的QTLs进行定位,为温室黄瓜产量分子标记辅助选择的研究提供理论依据。【方法】选用欧洲8号×秋棚自交系的113份黄瓜重组自交系（RILs）群体作为试验材料,并利用该群体已经构建的包含182个标记的分子连锁图谱对与产量相关的9个性状进行QTL分析。【结果】共检测到58个QTLs,其中与单株平均产量相关的QTL 1个...
【目的】百粒重是控制大豆产量性状的主要数量性状,对大豆产量性状进行基因定位具有重要的研究和应用价值。现有百粒重QTL定位结果分散,需选择合适的公共图谱,整合前人的研究结果,使其真正应用到实践中。【方法】以2004年发布大豆公共遗传连锁图谱soymap2为参考图谱,将近20年不同试验中的大豆百粒重的QTLs进行映射整合,构建百粒重QTL综合图谱。利用BioMercator2.1的映射功能将国内外常用...
粒形性状是水稻产量的重要构成因子,不仅影响水稻产量的高低,还影响着稻米品质的优劣,因此有关水稻粒形的遗传、粒形与稻米品质的相关性、粒形性状的QTLs定位等研究一直受到人们广泛的关注,至今已有许多研究报道,取得了可喜的研究进展。但至今所报道的研究中大多数采用籼稻与籼稻或籼稻与粳稻的杂交后代为材料,而利用粳稻与粳稻杂交后代为材料开展粳稻粒形性状遗传研究报道较少,且研究主要集中于粒长、粒宽、长宽比和粒重...
Mapping of QTLs Controlling Carbon Isotope Discrimination in the Photosynthetic System using Recombinant Inbred Lines Derived from a Cross between Two Different Rice (Oryza sativa L.) Cultivars
Carbon isotope discrimination (Δ) Photosynthesis Quantitative trait locus (QTL) Rice (Oryza sativa L.)
2009/7/24
Carbon isotope discrimination (Δ) occuring in the process of photosynthesis, shows variation among rice (Oryza sativa L.) cultivars. Elucidation of specific traits associated with the extent of this d...
Identification of QTLs for Improvement of Plant Type in Rice (Oryza sativa L.) Using Koshihikari / Kasalath Chromosome Segment Substitution Lines and Backcross Progeny F2 Population
Backcross progeny CSSLs Leaf Panicle Plant type QTL Rice (Oryza sativa L.)
2009/7/23
Thirty-nine chromosome segment substitution lines (CSSLs) population derived from a Koshihikari/Kasalath cross was used for quantitative trait locus (QTL) analysis of plant type in rice (Oryza sativa ...