查询词典 backcross

Experimental results based on backcross population indicated that the sensitivity and specificity of PCR marker were almost as same as that of RFLP marker.

回交后代的鉴定结果表明，该PCR标记的灵敏度和专化性与RFLP标记基本相同。

On early stage of each backcross generation we carry out foreground selection.

在每个回交世代早期实行前景选择，对经过了前景选择的中选单株在中后期实行背景选择和表型选择。

Its utilization potential is more powerful in the breeding of recurrent-selection, cross, backcross and multiple-cross.

探讨了单显性核不育的利用方法和途径，单基因显性核不育在轮回选择、杂交、回交和复交育种中有一定的利用价值。

Nevertheless, mutiple haplotypes of 16S rDNA and COⅠgenes were found in backcross.

但在回交子代中发现16S rDNA和COⅠ基因具有多种单倍型。

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

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。

Molecular marker-assisted selection provides a very efficient tool for backcross breeding because it can offer rapid and precise selection of the targeted gene.

分子标记辅助选择技术以其对目标基因快速而精确的选择为回交育种提供了非常有效的工具。

In order to transfer successfully the useful traits from ryegrass to wheat, it is necessary that offspring was produced by continuous backcross.

为了使黑麦草的优良性状能最终转移到小麦中，需要用小麦不断地回交以获得回交后代。

Gene expression of two Chinese cabbage backcross hybrid BC1, BC2 and their parents at bud stage was analyzed by means of cDNA-AFLP technique.

利用cDNA-AFLP技术对两种材料的不同回交世代BC1、BC2代与其亲本在蕾期的基因表达进行分析。

By analyzing the DNA of excellent soybean strains and their parents,it is made clear that backcross should be carried out in early generation so as to retain more genetic basis of wild soybean.

通过对大豆优良品系及其亲本的DNA组成分析，明确了用栽培大豆与种间杂交后代回交应在早代进行，以便更多地保留野生大豆细胞核的遗传基础。

Using 192 lines from BC2F2 backcross population and their equivalent progeny BC2F3, fine mapping of SKC1 was performed.

SKC1是一个控制盐胁迫下水稻地上部K+浓度的主效QTL，它可以解释40.1%的K+浓度表型变异。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。