遗传性状

The objective of this study is to dissect the genetic basis of the related traits of florescence for hybrid seed production, and provide the genetic basis for raising hybrid seed production and maize breeding.

本研究拟通过对玉米制种花期相关性状的遗传分析，为玉米制种产量的提高和玉米育种提供理论基础。

The field survey and study were made on the diversity for of 22 main characters of 474 local foxtail millet germplasm resources in different regions of Gansu Province.

以甘肃省地为单位对474份甘肃省谷子地方种质资源的22个主要性状进行遗传多样性分析。

In contrast,the research of the genetic basis of important economic and stress resistant characteristics of both Laminaria gametophyte and sporophyte is scarce.

然而，海带配子体和孢子体重要经济性状和抗逆性状的遗传基础研究缺乏。

Genetical genomics is combining of microarry technology and quantitative trait loci analysis, mapping expression QTL in global level.

遗传基因组学是将微阵列技术和数量性状座位分析结合起来，全基因组水平上定位基因表达的QTL。

One of the best-known examples of a sex-linked recessive charater in man is haemophilia.

在人类中，关于隐性性状性连锁遗传的一个著名例子是血友

Nutrient absorption capacity or grain yield is major index that scientist usually used to evaluate the nutrient efficiency, but these indexes could be influenced easily by other factors. Therefore these factors could not really reflect the hereditary property of nutrient character.

人们通常采用养分吸收量或产量作为养分效率的评价指标，但它们容易受其他因素的影响而难以真实地反映某一养分性状的遗传特性。

The results showed that there was a linear regression between F1 heterosis and the genetic differential index of its parents.

结果表明，杂种一代某些性状的优势率与其双亲间的遗传分化指数存在极显著的直线回归关系。

However, no significant correlations between genetic distance and traits or their heterosis were found.

但品系间遗传距离与各性状及其杂种优势率之间没有显著的相关关系。

The study suggest:(1) The observation of satellites in root tip and multiplex PCR makers could accurately identify the homozygous and the heterozygosis of 1BL/1RS translocation.(2) Through the restoring degree we could confirm the success of the transfer. The combination of the restoring degree and the agronomy property could increase the efficiency of practical application.(3) This study proposed the transformation from the physiological male sterile to the genetic male sterile, and then establish a method of utilize the strong superiority crosses.

其中复合引物PCR更适合于回交后代中大量目标种子的筛选；(2)恢复基因转育后代定株与不育系测交，依据测交恢复度可准确确定恢复基因在回交后代的延续，恢复基因定株定向转育与性状选择结合可大大提高转育后代的实际应用效果；(3)本研究提出的粘类小麦雄性不育恢复基因Rfv1定向转育体系，可有效地实现小麦由化控强优势组合向三系强优势组合的定向转化，即生理型不育途径向遗传型不育途径的定向转化，进而建拓一套杂交小麦强优势组合多途径利用新体系。

Hexaploid wheat has a lot of homoelogous gones in its genomes, and the main objective of wheat breeding is to get good phenotypes.

小麦是异源六倍体，其染色体组中存在着大量的同源基因，其育种的主要目标是获得可遗传的优良性状。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。