1) QTL variance
QTL方差
1.
The effects of trait heritability and QTL variance on genetic response,change of favorable QTL allele frequency and inbreeding coefficient from marker assisted selection (MAS) were analyzed.
在采用动物模型标记辅助最佳线性无偏预测方法对个体育种值进行估计的基础上 ,模拟了在一个闭锁群体内连续对单个性状选择 1 0个世代的情形 ,并系统地比较了性状遗传力和QTL方差对标记辅助选择所获得的遗传进展、QTL增效基因频率和群体近交系数变化的影响。
3) Quantitative trait loci
QTL
1.
QTLs (Quantitative trait loci)affecting content of gel consistency,alkali spreading value and indica-japonica differentiation were analyzed using a recombinant inbred(RI )lines de-rived from a cross of Asominori×IR 24 by single marker analysis and interval mapping.
用Asominori/IR24重组自交系(RIL)为材料,对控制稻米胶稠度、碱消值和籼粳分化度的QTL进行了分析。
2.
The study constructed the genetic linkage map of porcine chromosome 2 and further analysis of quantitative trait loci was conducted.
在 2号染色体发现了显著影响活体估测瘦肉率等活体估测性状的QTLs ,此外还发现眼肌高度和背最长肌大理石纹的QTLs,其中影响活体估测瘦肉率的QTL达到了染色体显著的水平 (P <0 。
3.
Quantitative trait loci for watermelon soluble solid content were mapped in the molecular genetic linkage map constructed from the RILs derived from the reciprocal cross of 97103 and PI296341 - FR in two different environments.
利用西瓜栽培品种97103和野生品种PI296341-FR为亲本构建重组自交系群体及其分子遗传连锁图谱,在新疆和北京不同生长环境中对果实可溶性固形物含量进行QTL比较分析。
4) quantitative trait loci (QTL)
QTL
1.
In this study, a population consisting of 244 BC_1F_8 lines (backcross recombinant inbred lines) derived from the cross of 9311 and Zhenshan97B, both elite indica hybrid rice parents, were developed for quantitative trait loci (QTL) mapping.
本研究以优良杂交稻亲本9311和珍汕97B的回交重组自交系(BRILs)群体为材料,构建了分子遗传连锁图谱,并利用该群体(BE_1F_8)的244个株系对剑叶、叶间距、穗抽出度等8个株型性状与穗重等5个穗部性状进行了两年考察及株型等性状QTL分析,取得的主要结果如下: 1、利用122个SSR标记和2个InDel标记对BRILs 244个单株进行基因型分析并构建遗传连锁图谱,该连锁图共覆盖水稻全基因组1,349。
2.
Quantitative trait loci (QTL) mapping was performed by using a population of 147 recombinant inbred lines derived from a cross between cultivar zhong-156 (high allelopathic index, AI) and cultivar Gumei-2 (low AI).
以中156／谷梅2号的重组自交系群体为材料,利用特征次生物质标记法检测了该群体147个株系水稻叶片在三叶期的次生物质含量,计算出它们的化感指数,并以此为表型,结合利用该重组自交系群体所构建的包括168个DNA标记的遗传连锁图谱,进行了水稻化感作用的数量性状位点 (QTLs)分析。
5) QTLs
QTL
1.
Study on Location of QTLs Controlling Cocoon Traits in Silkworm;
家蚕茧质性状的QTL定位研究
2.
Genetic Map Construction and Apetalousness QTLs Identification in Rapeseed (Brassica napus L.);
甘蓝型油菜遗传图谱构建与无花瓣性状QTL定位
3.
The purpose of this research is to identify quantitative trait loci(QTLs) on the linkage groups which are associated with Soybean phytophthora root rot(PRR),in a population from a cross between Conrad,a soybean cultivar tolerance to PRR in the field,and OX760,a breeding lines susceptible to phythora.
利用1200个RAPD随机引物和341对SSR引物对Conrad×OX760的重组自交系(RIL)F2:6群体的耐大豆疫霉根腐病基因进行QTL定位。
6) deviation
[英][,di:vi'eɪʃn] [美]['divɪ'eʃən]
方差
1.
After several discrete wavelet transforms, another expression of the deviation of white noise on every scale is given by us.
推导出了经过多次离散小波变换后,白噪声在不同尺度上方差的另外一种表达式,应用到小波域硬阈值滤波中,通过数字仿真发现,二进小波的计算量较大,滤波效果较好,离散小波的计算量较小,滤波效果稍差,并对原因进行了说明。
2.
The author thinks that sampling methods should be chosen according to the characteristics of cases studies and phasing of deducing should be replaced by direct stratificated to optimize the calculation of deviation which can make case deducing studies scientific and more practicable.
本文针对现行限额以下贸易业抽样调查方案在实施过程中反映出来的问题 ,提出了融复合分层和顺序抽选阶段于一体的架构及灵活地选用不同的抽样方法 ,改分阶段推断为直接分层推断 ,优化抽样方差计算等设想 ,目的在于使调查方案更科学、更具有可操作性。
补充资料：并合方差
分子式：
CAS号：
性质：是按加权方式计算出的各组的共同方差，当试验分m组进行，总的测定方差s2由m组的方差si2(i=1,2, …,m)共同决定。总方差，式中ni、fi和xi；分别为第i组的测定次数、自由度和平均值，xij是第i组的第j次测定值。
CAS号：
性质：是按加权方式计算出的各组的共同方差，当试验分m组进行，总的测定方差s2由m组的方差si2(i=1,2, …,m)共同决定。总方差，式中ni、fi和xi；分别为第i组的测定次数、自由度和平均值，xij是第i组的第j次测定值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条