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1)  substitutive fragment
代换片段
1.
Molecular markers were employed to survey the length of substitutive fragments in some NILs.
利用分子标记,对部分近等基因系的代换片段长度进行检测。
2)  single segment substitution line
单片段代换系
1.
A novel population consisted of 86 single segment substitution lines (SSSLs) were developed from advanced backcrosses between the recipient,Huajingxian 74 and six donors by microsatellite marker-assisted selection (MAS).
以水稻品种华粳籼74为受体,以6个水稻品种为供体,通过高代回交和微卫星标记辅助选择相结合的方法,建立了水稻的一个单片段代换系群体。
2.
The quantitative trait loci (QTLs) for 21 traits of agronomy importance on ten substituted chromosomal segments were identified using single segment substitution lines (SSSLs) in rice,which were developed by the use of Taichung 65 as a recipient and Zhai-ye-qing and Dee-geo-woo-gen as donors respectively.
利用以台中 6 5为受体、窄叶青和低脚乌尖为供体培育的 10个水稻单片段代换系为材料 ,对代换片段上2 1个重要农艺性状的QTL进行了鉴定。
3.
【Objective】 Single segment substitution lines(SSSLs) each with only single chromosome segment from a donor under the same genetic background as the recipient were developed in rice by advanced backcrossing and molecular marker-assisted selection.
目的单片段代换系(SSSL)是通过高代回交和分子标记辅助选择构建的,只含有来自供体亲本的一个染色体片段,遗传背景与受体亲本相同的品系。
3)  Single segment substitution lines
单片段代换系
1.
QTLs can be divided into several simple Mendelian factors using single segment substitution lines (SSSLs) with the characterizations of single substituted segment, purifying of genetic background, genetic stability and so on.
单片段代换系具有片段单一、背景一致、遗传稳定等特点,能把复杂性状的基因分解为多个简单的孟德尔因子,在作物数量性状和基因功能的分子研究中将发挥重要的作用。
2.
The single segment substitution lines(SSSLs) were perfect materials for analysis of gene especially for QTL.
单片段代换系是进行基因分析特别是QTL分析的理想材料。
3.
Twenty-nine single segment substitution lines (SSSLs) with the recipient, Taichung 65 and the donor, Dee-geo-woo-gen or Zhaiyeqing had been developed through simple sequence repeat (SSR) marker-aided selection.
利用微卫星标记辅助选择 ,建立了 2 9个以台中 6 5为受体、低脚乌尖或窄叶青为供体的单片段代换系 ,该代换系群体的代换片段分布于 9条染色体上 ,总长度为 6 43。
4)  Contiguous segment substitution lines(CSSLs)
重叠片段代换系
5)  chromosomal segment substitution lines (CSSLs)
染色体片段代换系(CSSLs)
6)  Chromosome single substitution segment line(CSSSL)
染色体单片段代换系
补充资料:大肠杆菌DNA聚合酶I大片段
分子式:
CAS号:

性质:大肠杆菌DNA聚合酶I是一种依赖于DNA的DNA聚合酶,分子量109kD。它有5′→3′DNA聚合酶活性,5′→3′及3′→5′外切酶活性。经蛋白酶(现在是利用枯草杆菌蛋白酶)作用后得到的一大片段肽键(分子量76kD),切去了5′→3′的外切酶活性,另二酶不受影响。在基因工程技术中常用于补平限制酶切割DNA后产生的3′凹端,进行末端标记;合成cDNA第二链;在体外诱变中从单链模板中合成双链DNA;用于双脱氧末端终止法进行DNA测序;以及也可用于PCR。

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