1.In genetics, the advent of molecular markers enables the dissection of a complex trait into a number of quantitative trait loci (QTL), and assists the transfer of these QTL into desired cultivars or lines.
DNA分子标记可把复杂的数量性状分解成若干个数量性状位点(quantitative trait loci,QTL)的效应,并将QTL转入到栽培品系中去。
2.QTL is the abbreviation of Quantitative Trait Loci and the region on the chromosome which influences Quantitative Trait. The procedures for finding and locating QTLs are called QTL mapping.
QTL是数量性状基因位点(Quantitative trait loci)的英文缩写，是位于染色体的上影响数量性状的一些区域，利用特定的遗传标记可以确定某一性状的QTL在染色体上的数目、位置及其遗传效应，这就是QTL作图。
3.2) to study if two important candidate genes of osteoporosis, i.e., ostecalcin (BGP) gene and insulin-like growth factor-I (IGF-1) gene, are quantitative trait loci (QTLs) of BMD variation in Chinese population.
2)研究在中国人群中两个重要的骨质疏松症相关的候选基因(骨钙素基因和类胰岛素样生长因子Ⅰ基因)是否为骨密度变异的数量性状位点(quantitative trait loci，QTLs)。
4.The applications of SSR in rice genetics and breeding including construction of genetic linkage map,identification of gene,QTL(quantitative trait loci) analysis,variety identification and maker-assisted selection breeding were summarized in this paper.
笔者对SSR标记在构建水稻分子遗传图谱、基因定位和克隆、QTL(quantitative trait loci)分析、品种鉴定、分子标记辅助选择育种等方面的研究进展进行了综述。
5.Scholars abroad have made many studies. Ellis (1985) divides anxiety into state or situational specific anxiety and trait anxiety according to its functions.
国外对外语学习者在外语学习中出现的焦虑进行了大量的研究,Ellis(1985)把焦虑按特征分为一次性或情景性焦虑(state or Situational specific anxiety)和气质性焦虑(trait anxiety)。
6.Nowadays, since the bioinformatics and genetic science are making rapid progresses, the Quantitative Trait Loci (QTL) grows into a hot researching area.
一方面,随着后基因时代的到来和生物信息的迅速发展,数量性状基因(Quantitative Trait Loci,简称QTL)定位领域发展迅速。
7.Since the 1980s, Endler(Endler, 1983; Endler, 1989; Endler & Parker, 1992), from the perspective of cross-situational relativity of trait anxiety, had a breakthrough of the solely dimensional view of it, and proposed the multi-dimensional model, paving the way for the study of the relation between trait anxiety and environmental factors. In recent years, researchers home and abroad have conducted empirical research on the factors influencing trait anxiety and yielded significant fruits.
80年代以来，Endler(1983; Endler, 1989; Endler & Parker, 1992)从特质焦虑跨情境的相对性立场出发，在Spielberger的基础上突破了特质焦虑单维度的观点，提出了特质焦虑的多维性理论模型，从而为开展特质焦虑与环境因素的关系研究开辟了道路。
8.The results of index selection show that r iY ,E (I) and CGS′ to multiple trait selection including Y are more than single trait and multiple trait selection nonincluding Y .
综合选择指数 ( Ii)筛选发现 ,若含有产量本身的多性状选择 ,其 ri Y(指数与生长基因型值的相关 )、E( I) (选择指数的效率 )及 CGS′( I) (应用选择指数时 ,生长的相关遗传进度的比较效率 )均大于单性状和不含 Y的多性状选择。
9.The results showed that three genes such as HbB at Hb locus, TfC at Tf locus, Es- at Es locus diplayed certain correlation to the prolific trait of Small-tail Han sheep. Possibility of Ep to be used as the genetic marker should depend on further researches. The other four protein of AIb, Pr, AMY, LDH had no correlation to the prolific trait of Small-tail Han sheep, and couldn?t be used as the genetic marker.
结果表明:Hb位点的HbB基因、Tf位点的TfC基因、Es的Es-基因与绵羊多羔性可能存在相关性,Ep是否可以作为小尾寒羊多羔性的遗传标记,还需进一步探讨,其它4个蛋白(酶)AIb、Pr、AMY、LDH与绵羊多羔性不相关;
10.Therefore, the trait differentiation and variations of the communities would be known where the model to describe how the trait parameters of the communities varied with the latitudes and elevations of the communities.
因而，当种群性状参数随地理纬度和海拔的变异模式确定后，就可以大体揭示种群性状分化的规律和变化趋势。
