搜索结果: 1-15 共查到“作物学 Fiber”相关记录33条 . 查询时间(0.136 秒)
GhAlaRP, a cotton alanine rich protein gene,involves in fiber elongation process
艾克曼棉 斯蒂芬氏棉 陆地棉野生种 基因组 结构变异
2024/4/16
本研究对艾克曼棉、斯蒂芬氏棉和一个陆地棉野生种系进行测序，解析了棉花多倍化及适应性进化过程中广泛存在的基因组结构变异，阐述了棉花生物多样性和棉花驯化的遗传基础；发现编码磷酸肽结合蛋白的基因结构变异可能与棉花纤维长度调控有关，烯酰辅酶Aδ异构酶3和RAP2-7可通过调节植物激素提高棉花非生物胁迫耐受性。研究结果揭示了棉花多倍化过程中的适应性进化机制，为棉花抗性和纤维品质遗传改良提供了宝贵的遗传材料。
Transcriptome and QTL analyses reveal candidate genes for fiber quality in Upland cotton
棉花 纤维发育 QTL 转录组 表达基因
2024/5/17
本研究基于前期得到的1个F2群体、1个重组自交系群体和2个永久回交群体得到了15个在多群体或者多年分稳定检测的QTL位点。基于转录组测序，在两亲本间发育10天的纤维进行差异基因鉴定，得到了780个差异基因。通过对QTL和转录组结果联合分析，在9个QTL区间内得到31个基因，其中有9个在纤维中优异表达的基因。在这9个基因中，有7个基因在纤维伸长期高量表达，2个基因在纤维次生壁加厚期高量表达。该研究为...
Examining two sets of introgression lines across multipleenvironments reveals background‑independent and stably expressedquantitative trait loci of fiber quality in cotton
陆海渐渗系 纤维品质 QTL 棉花
2024/5/17
首次利用两套陆海渐渗系鉴定纤维品质QTL，探讨遗传背景和环境对纤维品质QTL表达的影响，揭示了遗传背景对纤维品质QTL表达的影响明显大于环境因素；在全基因组上鉴定到稳定的QTLs 109个，不受背景影响的QTLs 9个。其中，61个稳定的QTLs，包括2个不受背景影响的QTLs，是新发现的；鉴定到19个含有多个纤维品质性状的优良等位基因的QTL簇，为进一步棉花分子育种提供了重要信息和理论指导。
Genome-wide quantitative trait loci reveal the genetic basis of cotton fiber quality and yield-related traits in a G.hirsutum recombinant inbred line population
0-153 sGK9708 棉花产量 品质性状
2024/5/17
利用0-153和sGK9708为亲本构建的RIL群体为材料，通过全基因组QTL挖掘明确了棉花产量及品质性状的相关性及其与QTL簇加性效应方向的关系，初步揭示了棉花产量纤维品质性状负相关形成的遗传基础，为进一步利用标记辅助选择、基因组编辑等技术同步改良棉花纤维品质和产量提供了重要的基因资源和位点信息。该研究以0-153*SGK9708为亲本构建的含有196个重组自交系群体为材料，在黄河流域及西北内陆...
A comprehensive identification and function analysis of the ATBS1 Interacting Factors (AIFs) gene family of Gossypium species in fiber development and under multiple stresses
AIFs基因 棉花 纤维发育 非生物胁迫响应
2024/4/16
ATBS1 INTERACTING FACTORs (AIFs)基因是一类bHLH蛋白，在植物生长发育过程中起着重要作用。本研究在亚洲棉、雷蒙德氏棉、陆地棉和海岛棉中分别鉴定得到8, 11, 16和15 AIFs。在该家族基因启动子中发现了多个与生长发育、胁迫和激素相关的启动元件。转录组数据显示该家族基因在棉花的花器官和纤维中高量表达。荧光定量表明该家族基因在纤维起始阶段高量表达。激素处理显示该家...
The genomic basis of geographic differentiation and fiber improvement in cultivated cotton
栽培陆地棉 纤维品质 优异位点 分子育种
2024/4/16
栽培陆地棉广泛种植于世界各地，是最重要的天然纤维来源，纤维品质直接决定了其经济价值。国内外棉花育种家开展了广泛的远缘杂交工作，将许多稀有的重要基因转移到栽培陆地棉中提高纤维品质，但并未对这些基因进行深入研究。本研究分析了超过3000份棉花种质资源，总计调查了近80000个纤维品质数据，全面剖析和评估了现存陆地棉种质资源中纤维品质相关的优异位点，并从远缘杂交渐渗系中鉴定到两个新的与纤维品质密切关联的...
Contents of Crude Protein and Crude Fiber in Kikuyugrass, Bahiagrass and Rhodesgrass Grown at Different Regional Sites in Japan
Bahiagrass Crude fiber Crude protein Kikuyugrass Rhodesgrass
2009/8/6
Contents of crude protein and crude fiber in harvested material were investigated in kikuyugrass (Pennisetum clandestimum Hochst ex Chiov.), bahiagrass (Paspalum notatum Flugge) and rhodesgrass (Chlo...
Root Anatomical Responses to Waterlogging at Seedling Stage of Three Cordage Fiber Crops
Aerenchyma Casparian band Jute Kenaf Root endodermis Root exodermis Roselle Seedling
2009/7/23
Waterlogging tolerance of tropical cordage fiber crops is an important agricultural subject in northeast Thailand, because they are often grown in dry-wet transition period as pre-rice crops. Since ro...
Increasing the Length of the Transplanting Period of Gypsophila paniculata L.Cuttings Grown in Cell Medium Hardened by Heat Fusion Polyester Fiber
Cuttings Transplanting Increasing Gypsophila
2009/7/10
Rooting growth and cut flower quality of Gypsophila paniculata L. cuttings grown in cell medium hardened by heat fusion polyester fiber was investigated. Rooting percentages of hardened media were not...
玉米DNA 纤维的制备及端粒DNA 的Fiber-FISH
玉米 端粒DNA纤维荧光原位杂交 拷贝数
2009/6/4
[ 目的] 建立了一种快速制备DNA 纤维的方法, 用端粒DNA 在玉米纤维上进行物理定位。[ 方法] 采用刀切法从玉米嫩叶中提取
细胞核。以端粒DNA 为探针, 在玉米DNA 纤维上进行伸展DNA 纤维的荧光原位杂交( Fiber- FISH) , 研究端粒DNA 重复序列在玉米染色
体上的拷贝数。[ 结果] 用刀切法提取玉米细胞核, 提高了核的完整性, 并改善了DNA 纤维的制备效果。玉米...
Cotton Planting Date and Plant Population Effects on Yield and Fiber Quality in the Mississippi Delta
Cotton Planting Date Plant Population Yield Fiber Quality
2009/4/30
Cotton producers in the Mississippi Delta plant in the early spring, but wet, cold weather often develops that may reduce plant population directly or indirectly. Producers must occasionally decide if...
A Comparison of Methods for Measuring the Short Fiber Content of Cotton
Short Fiber Content Cotton
2009/4/30
Twenty-nine bales of cotton with short fiber content ranging from approximately 5% to 25% were selected for the purpose of comparing the effectiveness and relationships among the current testing metho...
Effect of Cultivar Blends on Fiber Quality, Lint Yield, and Gross Return of Upland Cotton in West Texas
Cultivar Blends Fiber Quality Lint Yield Gross Return of Upland Cotton
2009/4/30
During the years 2001 and 2002, field trials were conducted to study the effect of blending different cotton cultivars on fiber quality, lint yield, and lint yield stability across environments. Four ...
Evaluation of the USDA Shafter Cotton（Gossypium spp.）Collection for Agronomic and Fiber Traits
USDA Shafter Cotton Agronomic and Fiber Traits
2009/4/30
Many of the recent additions to the US Cotton Germplasm collection are uncharacterized for common germplasm descriptors. The objective of this study was to evaluate a subset of cotton germplasm for th...
Determination of Relationships between Various Aerodynamics, Physio-Mechanical and Fiber Properties in Cotton
Cotton physio-mechanical properties fiber properties aerodynamic properties
2009/1/13
The relationships between aerodynamic properties such as vacuum pressure and suction speed and the fiber and physio-mechanical properties of cotton during harvesting were determined by using the Nazil...