查询词典 chromosome

After having been sequenced of the genomes in many species, one of the most advanced studies is to cytogenetically locate the DNA sequences to chromosomes, and construct integrated map combined the genetic map, contig map, chromosome banding pattern map, and cytogenetic map.

多种生物全序测定完成后，本领域最前沿的研究之一是将已测顺序进行细胞遗传学定位，作遗传图，重叠群图，染色体带型图和细胞遗传学图的整合图。

They have been morphologically and cytologically stable with chromosome configuration of "2n=44=22II".

研究表明，两个衍生系在形态学和细胞学上已基本稳定，染色体构型为2n=44=22II。

The demethylation of DNA and acetylation of core histone reconstitute chromosome struction which is beneficial to gene transcription.

DNA去甲基化与组蛋白乙酰化导致染色质构象发生有利于基因转录的变化，基因具有转录活性。

To fine mapping the resistance gene, STS markers weredesigned using some RFLP probes and ESTs mapped on the long arm of chromsome 5ALto densify markers on the chromosome region surrounding mlm404, and the STS markermore closely linked to mlm404, MAG1493, was identified.

为了精细定位该基因，我们用5AL的RFLP探针和EST开发的STS标记丰富了mlm404附近的标记密度，发现了与其更为紧密连锁的STS标记MAG1493.mlm404与大麦抗白粉病基因Mlo直系同源基因TmMlo紧密连锁，遗传距离为1.0 cM。

Karyotype analysis of 3 species of genus Podocarpium and chromosome numbers of 2 species of genus Desmodium.

长柄山蚂蝗属三个种的核型分析及山蚂蝗属两个种的染色体数。

Based on conventional genetic analysis, a mono - and digenic model for seed dormancy in N22 were proposed respectively. But the chromosome locations of those genes have not been determined.

本研究利用SSR标记，基于两个BC_1F_1群体：南粳35／N22／／南粳35、USSR5／N22／／USSR5，和一个F_2群体：USSR5／N22构建了三套遗传图谱，进而对水稻种子休眠性进行了QTL定位分析。

As for digenic interaction, 18 pairs of epistatic loci with R2 ≥5 were resolved with a mean R2 of 6.9 ,ranging from 5.1 to 11.8 ,which was slightly larger than that of the main-effect QTL identified for the traits.The majority of the main-effect and epistatic loci detected for seedling vigor related traits were clustered in a few chromo-some regions.

种子活力相关性状的大多数主效应和互作QTL成串分布于少数几个染色体区段(Chromosome Regions，CRs)，并且成串分布在同一染色体区段的QTL效应的方向总是一致，该结果与这些性状在表型上的正相关相一致。

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。

In tetrapolarity mating system,A and B factor is two mating types locus locating different chromosome,only when two single spore mycelium form AαAβBαBβ,then can produce to dikaryon and complete whole sexual life history.Study according to the Eger.

在四极性交配系统中，A和B因子分别对应位于不同染色体上的两个交配型位点，两个单核菌丝相遇，只有当它们形成A1A2B1B2或者AαAβBαBβ型时，才能产生具有锁状联合的双核体，完成整个有性生活史。

In additional, eIF5a2 is located on chromosome 2B using Langdon D-genomic disomic substitution lines and the expression of eIF5A was also investigated by Semi-quantitative PCR.

进一步研究表明eIF5a2位于2B染色体上，并用半定量RT-PCR 研究了小麦eIF5A基因的表达情况。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！