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introgression相关的网络例句

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The yield, quality, resistance and chromosome characteristics of the hybrids were analyzed, and the improvement of the grasses using gene introgression, androgenesis and genetic modification methods was introduced. The latest advance in GISH, genetic map construction and QTL of Festulolium hybrids were described here.

本文总结了黑麦草羊茅杂种高产、优质、抗性强的优势;分析了杂种染色体配型特点;重点介绍了通过基因渗入、雄核发育和转基因手段改良牧草的方法;对黑麦草羊茅杂种基因组原位杂交、分子标记和遗传图谱建立、数量性状位点分析等分子遗传学的最新研究进展进行了综述。

Four stable maize DNA introgression lines and 4 stable barnyard grass DNA introgression lines were constructed and then investigated.

通过花粉管通道法将稗草总体DNA和玉米总体DNA导入水稻受体R122中,获得的D1代变异频率分别高达1.487%和3.81%。

The result suggested that different genomes had different genetic speed or stability during evolution.3 The similarities co-efficiency between wild emmer and hexaploid synthetic was higher than that between wild emmer and common wheat. So that crossing among species is not a simple combination of genomes, but involve introgression of chromosomes, and the evolution made by this action was bigger than that made by environment.4 According to the results of salt tolerance identification, the salt tolerance of wild emmer is lower than that of common wheat in the whole.

野生二粒小麦与普通小麦之间的遗传相似系数稍高于野生二粒小麦与其与节节麦合成的双二倍体的遗传相似系数,说明物种之间的杂交并不仅仅是染色体组简单的合并,其中包括复杂的染色体组本身的一些特性以及染色体之间的互渗且这种作用远大于环境作用所引起的变化。

One of the main trends of lily breeding is to realize introgression between these groups.

实现它们之间的种质渗入是百合育种的主要方向之一。

Previous studies showed that there were many sequencing changes in the genome of offspring introgression lines.

先前的研究表明渐渗系后代基因组中存在大量的序列变异。

Marker-assisted introgression is one of the major applications of molecular information in animal breeding aiming at introgression of one or more favorable genes from a line to another, while keeping the genetic background of the recipient as much as possible. It consists of three phases.

标记辅助导入是分子遗传信息应用于动物育种的一个重要方面,其目的是在标记信息的辅助下将一个品种中的一个或多个优良基因导入另一个品种,同时还要尽可能地保持受体群体原有的遗传背景。

In this study, MBLUP was first used for genetic background restoration, analyzing the effect of different factors on marker-assisted introgression efficiency, discussing the suitable marker-assisted introgression scheme.

因此本文首次将MBLUP方法应用到遗传背景的恢复上,并分析了不同因素对标记辅助导入效率的影响,探讨适宜的标记辅助导入方案。

Asymmetric over-introgression of the indica alleles on chromosome 7 and many specific regions on other chromosomes in the japonica genetic background is consistent with the general trend observed in the RIL and F_2 populations of the same cross, suggesting a high genetic load in the japonica gene pool, and japonica genome experienced a very severe bottleneck by artificial domestication.2 Genetic background effect on QTL expression of grain weight and its related traitsGenetic background effect on main-effect QTL and digenic epistatic QTL mapping for GWT and its related traits including GL, GW and GT was dissected by a large set of reciprocal introgression lines and recombinant inbred lines derived from Lemont and Teqing in Beijing environment.

籼粳相互导入具有不对称性,粳稻向籼稻背景的平均导入频率与期望值相仿,相反籼稻向粳稻背景的平均导入频率大大高于理论预期,位于第7染色体和一些其它染色体的特殊区段存在籼稻等位基因的超导入现象,在来自相同亲本的重组自交系和F_2群体中也观察到同样的导入趋势,表明粳稻基因组具有较大的遗传负荷,粳稻品种在人工驯化过程中曾经历过一个非常剧烈的遗传瓶颈。2水稻籽粒相关性状的主效和互作QTL表达的遗传背景效应利用Lemont和特青培育的双向导入系和重组自交系群体,在北京环境下定位影响千粒重及其相关性状如粒长、粒宽和粒厚的主效和互作QTL,分别在特青背景导入系、Lemont背景导入系和重组自交系下检测到影响千粒重及其相关性状的主效QTL分别为33个、27个和13个,互作QTL分别为4个、8个和23个,其中仅有6个主效QTL(QGwt5,QGl1,QGl3b,QGl4,QGw7和QGw8)在籼粳两个不同背景下共同表达,3个主效QTL(QGwt5,QGwt7a和QGt5)在导入系和重组自交系中共同表达,分别占检测到影响这些性状QTL总数的11.1%和4.3%,未检测到在3个背景下相同表达的互作QTL。

Over the years, our laboratory hasfound that Zizania DNA introgression could induce a large number of genetic and epigeneticchanges in some introgression lines.

我们实验室的前期工作发现将菰的基因组DNA导入水稻中能诱导水稻基因组获得渐渗杂交系发生广泛的基因组变异和表观遗传变异。

In this thesis, regenerated plants were obtained from embryonic calli induced from eachof several rice–Zizania introgression lines , their rice parental line as well as F1hybrids between introgression lines and the parental line, by using mature seeds as explants.

本论文通过成熟胚诱导水稻松前和渐渗系以及它们之间杂交种的愈伤组织,并分化出再生苗,研究转座子mPing和反座子Tos17在水稻经组织培养过程后在基因组中的变化特点。

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