多基因性状

多基因离散性状QTL连锁分析方法

Methodology of QTL 's Linkage Analysis for Discrete Traits Controlled by Polygenes

哺乳动物毛色是一个多基因控制的性状，Agouti基因是研究哺乳动物毛色发生的一个主要的候选基因。

Mammalian coat color is a polygenic trait , as well as agouti gene is a major candidate gene about studying mammalian coat color .

分子标记辅助育种可以将多基因控制的性状快速地聚合在一起，培育出高产、优质、多抗性聚合的超级玉米品种。

As well , MAS technique could quickly pyramide the multiple traits together which always control by QTL to develop the super maize cultivar with high yield , good quality and multi-resistances .

植物体细胞杂交使远缘杂交不亲和的植物有可能实现遗传物质重组，创造和培养植物新品种乃至新物种，尤其在多基因控制农艺性状的改良上具有较大优势。

Plant somatic hybridization provides the possibility of genetic material recombination of sexual cross-incompatibility plants , results in novel plant cultivars and even new species . It is a preponderant technique , especially for improving agronomic traits controlled by multiple genes .

轮回选择对多基因控制的性状，对遗传力偏低、有加性效应的性状，例如抗赤霉病、耐盐碱和籽粒饱满度等性状的选育具有更大的效应。

Moreover , wheat recurrent selection can obtain better results on improving the characters influenced by multiple genes , the characters having lower hereditary capacity or the characters having gene accumulation mechanism , such as resistance to wheat scab and tolerance to salt or drought .

检测了群体中籽粒硬度、蛋白质含量、SDS沉降值、拉伸面积等品质性状，它们在群体中呈近似正态的连续分布，为多基因控制的数量性状。

All traits including kernel hardness , protein content , SDS sedimentation and extension area appeared a continuous distribution near to normal , which means that they were quantitative traits controlled by multi-genes .

结果表明：F2分离群体果萼色级值呈单峰偏态分布，说明茄子果萼色为多基因控制的数量性状；

The results showed that calyx color grade value of F2 is single peak and partial distribution , it is proved that the fruit calyx color is quantitative trait controlled by multiple 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 .

在F3的所有家系中，所考察的芽期和幼苗期抗寒性表型为连续分布，且接近于正态分布，说明了抗寒性为由多基因控制的数量性状。

In all the F3 families , the performance of cold tolerance at germination and seedling stage was continuous distribution , and closed to the normal distribution , indicating the cold resistance was quantitative trait controlled by multiple loci . 3 .

结果表明：死苗率在BC1F1群体中呈连续分布，表明耐冷性是由多基因控制的数量性状。

The result indicated that the cold tolerance at seedling stage in Dongxiang wild rice fitted for quantitative trait model , which was controlled by some genes .

分析盐恢559、Lemont及其配制的2个回交群体及F2群体的单株出叶速率，推测盐恢559的快速出叶性状为多基因控制的数量性状，其中可能存在效应较大的数量基因。

According to the analysis on the leafing rate of the parents ( Yanhui 559 , Lemont ), two backcross populations and F2 plants , it was suggested that several quantitative trait genes possibly including main effect members regulated the rapid leafing character .

大豆的许多重要农艺性状和经济性状是受多基因控制的数量性状。

Most of the important agronomic characters of soybean are quantitative traits .

脂肪代谢性状属于多基因控制的复杂性状。

Lipometabolism are complex traits controlled by multiple genes .

分析表明，稻米垩白是受多基因控制的数量性状。

The rice kernel chalkiness is the quantitative trait that is controlled by many genes .

大多数农作物性状是由多基因控制的数量性状，对数量性状基因位点进行鉴定在作物遗传育种上具有重要意义。

Most of crop traits are quantitative in nature , which are controlled by polygene .

作物的多数重要农艺性状是受多基因控制的数量性状，对于数量基因的定位至关重要。

Many important agronomic traits are quantitative .

穗粒性状是由微效多基因控制的数量性状；

The ear - kernel characters were quantitative in nature , controlled by many genes with small effects ;

盐碱胁迫是常见的环境胁迫，植物的耐盐性是多基因控制的数量性状。

In the littoral of our Country , many concrete bridges are under the influence of salt and alkali .

结果表明，大粒型突变体的籽粒大小（籽粒体积表示）现为受多基因控制的数量性状。

The results indicated that the grain volume of the large-grain mutant was quantitative trait controlled by multiple genes .

结果表明：玉米对黄曲霉菌的抗性表现为多基因控制的数量性状遗传，加性基因效应和非加性效应都是重要的。

The resistance to Aspergillus flavus seemed to be the character of quantitative inheritance which is controlled by multiple genes .

磷效率相关性状属于多基因控制的数量性状，且易受环境影响。

P efficiency related traits are typical quantitative traits , which were controlled by various genes and easily affected by environment .

研究了染色体易位情况下，多基因控制的数量性状杂交及回交世代的方差组成。

The variance component of cross and backcross generations of quantitative character controlled by multigenes is studied on condition of chromosome translocation .

玉米耐荫性是受多基因控制的数量性状，采用传统的育种方法改善其耐荫性效率较低。

Tolerant corn is controlled by multiple genes of quantitative traits using traditional breeding methods to improve their tolerant and less efficient .

谷粒的长度、宽度、厚度、长宽比和粒重都属于多基因控制的数量性状。

Grain shape of paddy rice , including length width , thickness and ratio of length to width were quantitative traits controlled by polygene .

研究表明植物的抗盐性状是一个由多基因控制的数量性状，这决定了抗盐机制的复杂性。

It was reported that salt resistance in plant is a scalar property manipulated by many genes , which means mechanism of excluding salt is complex .

前人的研究结果表明：水稻对细条病的抗性是由微效多基因控制的数量性状。

According to the research of the pioneers , Resistance to BLS in rice was a quantitative trait , which controlled by a few minor genes .

玉米的叶绿素含量、光合性状和产量等大多数光合相关性状都是由多基因控制的数量性状。

Most of the photosynthesis-related traits of maize , such as Chlorophyll content , photosynthetic function , and yield , are quantitative traits controlled by many genes .

肌肉生长与肌肉品质性状的改良一直是家畜育种工作的主要目标之一，二者均属于多基因控制的数量性状。

Improvement of muscle growth and meat quality , quantitative traits both controlled by multigenes , is always one of the main goals for livestock genetics and breeding .

四种功能成分含量在糙米及精米中均呈现广泛的遗传变异，表明它们是由多基因控制的数量性状。

Four functional components in brown and polished rice showed a wide range of genetic variation , this indicated that they were quantitative traits controlled by multi-genes . 2 .

通过对9个杂交组合357个株系的遗传变异分析表明，葡萄浆果成熟期为多基因控制的数量性状遗传，后代群体呈正态分布。

By analysing the genetic variations of 357 strains of 9 crossing combinations , it showed that the maturation period of grape was quantitative character genetics , controlled by ploy gene .