主效基因

对分离比进行遗传分析和X2检验，结果表明紫薇矮生性状受一对完全显性主效基因控制，同时存在微效修饰基因。

Genetic analysis and chi-square test showed that dwarf type in Lagerstroemia likely controlled by an complete dominance major gene as well as polygene .

这些都表明GH基因可能是一个控制京海黄鸡繁殖和屠体性状的主效基因或是与之存在紧密遗传连锁的一个标记。

It implied that the GH gene could be a genetic locus or linked to a major gene greatly affecting the reproduction and carcass traits in Jinghai yellow chicken . 5 .

因此推测，大豆中与耐低磷性状相关的主效基因可能定位于F连锁群上。

It was suggested that the genes related to phosphorus deficiency tolerance located on linkage group F in soybean .

第3和10染色体上的QTL能解释较大的表型变异，可以认为是主效基因位点。

Two QTL on chromosomes 3 and 10 were infered as major ones .

氟烷基因（Haln）是导致猪应激综合征（PSS）和产生劣质猪肉的一个主效基因，在种猪群体中必须剔除这种基因。

Halothane gene is the major gene leading to pigs ' PSS and poor pork .

2005年在昆明点的F4主效基因的遗传率为80.67%-91.55%。

The F4 populations heritability of major gene was from 80.67 % - 91.55 % in Kunming in 2005 .

秆长的表现型值及其CRI值受少数主效基因控制，具有较高的狭义遗传力。

Culm length and its CRI were affected by a few major genes , and these traits had high narrow-sense heritability .

因此推测PPARα基因可能是影响鸡脂肪代谢的主效基因或与控制该性状的主效基因连锁，并且能够用于对鸡脂肪性状进行分子标记辅助选择。

It implied that PPAR α gene could be a candidate locus or linked to a major gene to significantly affect abdominal fat traits in chicken .

ESR基因是影响猪产仔数的主效基因，而且与猪的生长发育性状及胴体性状之间不存在负的基因多效性影响。

ESR ( Estrogen Receptor ) gene has been determined to be one of the major genes affecting phenotype of litter size without any genetic negative correlation to growth and carcass trait .

AB1的雄性育性恢复基因为一对主效基因，当细胞核内有一个显性基因时，环境条件敏感基因的作用被掩盖。

The restorer of AB1 had one pair of dominant major genes . When one of them is present in the nucleus , the effect of the environmental sensitive genes will be masked .

目前，许多学者认为这些数量性状的表现不仅受微效多基因或QTL控制，而且也与主效基因调控密切相关。

At present , many scholars believe that the performance of these traits are not only controlled by minor-polygene or QTL , but also closely related to the regulation of major genes .

其中Sc2解释表型变异的29%，相对Sc1和Sc3而言，Sc2具有主效基因的特征。

Among three QTLs , Sc2 has the characteristics of major gene with explained 29 % .

Pib基因属于NBS-LRR抗病基因家族，是从水稻中克隆出的第一个抗稻瘟病主效基因。

Pib belongs to the family of NBS-LRR resistance gene , which was the first cloned rice blast resistance gene .

以上结果表明，BMPRIB基因是影响中国美利奴肉用多胎品系产羔数的主效基因，并在一定时期内影响羔羊的生长发育。

These findings indicated that the BMPR-IB gene was a major gene that regulates litter size and affects growth and development during a certain period .

水稻Wx基因编码颗粒结合淀粉合成酶（GBSS），是控制直链淀粉合成的主效基因。

The granule-bound starch synthase ( GBSS ) is encoded by the rice Wx gene , which is the major gene for control of amylose synthesis .

分析认为HB供体亲本可能存在与HB基因连锁的叶片增大加性主效基因，其连锁关系也比较容易被打破。

Through the analysis , we believe the HB donor may exist the additive major genes for large leaf , which were linked with the HB-gene . And also , the linkage relationship is easy to break . 6 .

骨形态发生蛋白15（BoneMorphogeneticProtein15，BMP15）基因为控制Belclare和Cambridge绵羊高繁殖力的主效基因。

Bone morphogenetic protein 15 ( BMP15 ) gene which controls the fecundity of Belclare ewes and Cambridge ewes was studied as a candidate gene on the prolificacy of Jining Grey goats .

产仔数是一个受排卵数、受胎率和胚胎成活率以及环境效应等多种因素影响的复合性状，FSHβ基因是控制猪产仔数的主效基因之一。

Litter size is a complex trait what was affected by various factors such as ovulation number , conception rate , embryo survival rate and environmental effects . FSH β is a major gene for litter size in pigs .

本研究结果提示PIT-1基因可能是控制京海黄鸡体重性状和屠宰性状的主效基因或是与之存在紧密联系。

The results of the current study showed that the PIT-1 gene may be a major gene about the body weight and carcass traits or linked with the major genes .

PKV是典型的由微效多基因控制的数量性状，HPV、BDV、CPV、SBV和CSV都可能是由一对主效基因和若干微效基因共同控制的。

PKV was a typical quantitative character , while HPV , BDV , CPV , SBV and CSV , each might be controled by a major gene and several minor genes .

研究表明：FSHβ基因可能是控制小尾寒羊多羔性能的一个主效基因或与之存在紧密连锁的一个遗传标记，AA基因型可能具有增加绵羊产羔数的作用。

The results showed that the FSH β gene is either a major gene that influences the prolificacy in Small Tailed Han Sheep or a molecular marker in close linkage with such a gene , AA genotype could increased litter size in sheep .

遗传研究表明，胚乳云雾性状为一隐性性状，受单一隐性基因控制，与其相关的低AAC由一主效基因和若干微效基因控制。

Genetic studies revealed that the mist trait was controlled by a single recessive gene , and its related low AAC was regulated by a major gene with slight modifications by minor gene ( s ) .

还有学者发现为4个QTLs，其中一个主效基因Rf-10被定位在第10染色体上，3个微效基因分别定位在第1，第7和第11染色体上。

Still some scholars found four QTLs , one of major genes , Rf-10 was located on chromosome 10 , three minor genes were located on 1,7 and 11 respectively .

研究获得的这些结果强烈表明BMPRIB为影响绵羊的产羔数的主效基因，可以用于对绵羊产羔数的选择。

These results intensively indicated that BMPR-IB is a major gene to affect litter size in sheep , and could be used as the molecular genetic marker to select litter size in sheep .

因此育种时可以选用含有主效基因的亲本，或者通过QTL基因定位的方法找到与这些基因紧密连锁的分子标记，采用分子标记辅助选择方法来提高玉米抗螟性的育种效果。

Therefore the parents that have major genes can be selected for maize breeding . Otherwise we can use molecular marker selection based on the molecular marker closely linked with these major genes according to QTL gene location to improve the effect of maize Bt-resistance breeding .

BMPR-IB基因是绵羊产羔数的主效基因，点突变基因即FecB基因（A746G）可以用于对绵羊多胎品系的选择。

BMPR-IB gene is one of the major gene for fecundity of sheep , point mutations ( A746G ) called FecB gene can be used as the molecular genetic marker for the selection of multiple births strain of sheep .

金华猪六个主效基因遗传多样性的研究

Study on the genetic diversity of Jinhua Pig by six major genes

影响绵羊多胎性状主效基因的研究进展

Research Advances of the Major Genes Affecting Sheep Fecundity Characters

影响畜禽重要经济性状的主效基因研究进展

Research Progress on Major Genes Influencing Economic Traits in Livestock and Poultry

利用4个繁殖性状主效基因研究陆川猪群体的遗传结构

Genetic Structure of Luchuan Pig Population with Four Major Genes Influencing Reproductive Traits