多倍体

以这些序列为探针对大量的多倍体小麦和它们的二倍体祖先物种进行了Southern杂交分析。

The sequences were studied by genomic Southern hybridizations on a collection of polyploid wheats and their diploid progenitors .

我国甜菜多倍体品种的RAPD分析

Genetic Analysis of Sugarbeet Polyploid Varieties by RAPD Markers

所有的梨亚科是由两个远缘祖先类型双杂交演化的异源多倍体。

All the Pomoideae were allopolyploids derived from a doubled hybrid between two remote ancestral types .

细胞松弛素B诱导虾夷扇贝多倍体初探

Preliminary study on inducing polyploid in Japanese scallop ( patinopecten yessoensis ) by cytochalasin B

分裂的第一步是DNA的复制、形成多倍体的细胞核；

The first step of division is to duplicate DNA to form polyloid nuclei ;

DNA组方图中二倍体峰明显增高变大，而多倍体峰变小。

On the DNA histogram , the diploid peak became higher and bigger , but multiploid peaks became smaller .

染色体组B、C和E之间，以及上述二倍体物种之间的系统发育关系及其在稻属多倍体物种形成中的作用都是稻属系统和进化研究中长期争论的问题。

The phylogenetic relationships among these diploids are still unclear , and polyploidy speciation involving these diploids has long been in debate .

桑树多倍体育种材料遗传背景的AFLP分析

AFLP Analysis of Genetic Background of Polyploid Breeding Materials of Mulberry

经杂交后多倍化形成的异源多倍体植物，被认为在其形成的早期阶段经历了DNA序列消除过程。

Allopolyploids , resulted from combination of two or more differentiated genomes , have undergone DNA sequence elimination in the early stage after the formation of allopolyploids .

研究表明，多倍体小麦基因组中存在一类低拷贝、染色体专化的DNA序列，其在多倍体形成时常表现出不稳定性。

Recent work revealed that , in the genomes of polyploid wheat , there exists a class of low_copy and chromosome_specific sequences that are labile upon polyploid formation .

DNA倍体分析结果示融合细胞为多倍体及非整倍体细胞，随细胞代数的增长，非整倍体细胞所占比例增加。

DNA ploidy analysis showed that fusion cells consisted of polyploid and aneuploid cells and with the increase of passages the proportion of aneuploid cells increased . 6 .

热带假丝酵母多倍体变种的细胞色素P450和尿素在烷烃代谢中的作用

Involvement of cytochrome P450 and urea in the alkane metabolism by Candida tropicalis

多倍体麦类作物Wx蛋白检测的SDS-PAGE方法

SDS-PAGE for the Detection of Wx Protein in Polyploid Wheats

MEKC法和HPLC法测定黄芩多倍体中黄芩苷含量的研究

Comparison of baicalin in skullcap polyploid determined by MEKC and HPLC methods

GM-CSF体外促进多倍体巨核细胞的生成

Enhancement of the Formation of Megakaryocyte Ploidy by GM - CSF in vitro

结果表明，DNA倍体水平分布范围为2.47～1.79，无正常二倍体（2C），41例皆为非正倍体的异多倍体。

The distribution of DNA ploidy was2.47 ~ 11.79C , with no normal diploid ( 2C ) . All the41 cases were aneuploidy and polyploid .

在有些植物中，即使只有一条Y染色体而有多条X染色体，但Y基因似乎会抑制x基因的表达，因此多倍体植物仍旧是雌雄异株。

In some , the Y genes seem to override expression of X genes even if there is only one Y and several X chromosomes , and the polyploids remain dioecious .

结果硫芥处理的CHL细胞染色体畸变率显著增加，出现裂隙、断裂、缺失、多倍体等多种类型畸变，并呈量效依赖趋势。

Results Sulfur mustard might increase the chromosomal aberration frequency of CHL cell in a dose-dependent manner .

根据形态性状鉴定和RAPD数据，对甜菜多倍体品种及亲本材料进行聚类分析表明：总体上看，甜菜多倍体品种遗传多样性丰富。

As results from cluster analysis based on phylogeny and RAPD data , it was concluded : The polyploid sugarbeet varieties have abundant genetic diversity .

多倍体育种可以育成许多优良的多倍体新品种，如何将2n配子与n配子分离开成为多倍体育种的瓶颈。

Multiploid breeding can produce many superior new species . The bottle-neck of the method is how to separating the 2n pollens from the n pollens .

针对树木枝芽的室外高温诱发多倍体处理，介绍了一种模糊PID温度控制器，该控制器具有显示温度、设定温度、自动控制温度等功能。

Aiming at trees ' outdoor treatment by high temperature , the fuzzy-PID temperature measure and control instrument was introduced , which has display , temperature enactment and automatic temperature control functions .

3个无性系中韩国四倍体主要调动POD酶、匈牙利多倍体主要调动SOD、CAT酶、长叶刺槐主要调动POD、CAT酶。

Among 3 clones Korea tetraploid mainly transfers POD enzyme , Hungary polyploid mainly transfers SOD enzyme and CAT enzyme and long leaf Robinia pseudoacacia mainly transfers POD enzyme .

方法：用流式细胞仪分析患者精液DNA，从DNA的单倍体量、二倍体量及多倍体数量来判断精液的质量以及服五子衍宗丸合加味肾气丸后对精液质量的改善。

Methods : The sperm DNA were analyzed with the flow cytometer . It was from the quantity of haploid , diploid and polyploid of DNA to judge the quality of sperm and its improvement after treatment .

秋水仙素诱导川贝母（FritillariaCirrhosaD.Don）愈伤组织多倍体的研究

Induction of Polyploid from Colchicine-Treated Fritillaria cirrhosa D.Don Callus

目的采用MEKC和HPLC法对黄芩多倍体进行了黄芩苷含量的测定，为大量样品的检测提供可靠的方法。

Object To determine the baicalin content in skullcap polyploid by MEKC and HPLC , and to provide the reliable method used to determine a large number of samples .

EMS（甲基磺酸乙酯）是一种高效的化学诱变剂，极易引起点突变，尤其在多倍体小麦中突变密度极高。

EMS ( ethyl methane sulphonate ) is efficient chemical mutagen which can cause point mutation easily , in particularly , mutation density is high extremely in polyploid wheat .

中国对虾及中华绒螯蟹多倍体诱导中6-DMAP在卵子中残留量的检测

Detection of 6-DMAP remaining in treated eggs of Penaeus chinensis and Eriocheir sinensis in polyploid induction

结果：治疗组病变胃黏膜细胞DNA含量减少，二倍体细胞增多，多倍体及异倍体细胞减少（P<0.01）。

Results : The DNA contents of gastric mucous membrane of the therapeutic groups were decreased , in which the number of diploid cells were increased , but the number the polyploid and heteroploid cells were decreased ( P < 0.01 ) .

以0.06%的秋水仙素处理72h可以得到较高的多倍体细胞诱导率，而且不至于对愈伤组织产生严重的伤害。

0.06 % colchicines with 72h treatment was effective on polyploidy induction . The inducing rate was high , and callus was harmed gently .

愈伤组织水平上诱导葡萄多倍体试验结果表明：以茎段和叶片为外植体，在附加不同浓度2，4-D、6-BA及秋水仙素的MS、B5培养基上，均可诱导出愈伤组织；

The results of induced calluses had been obtained as follows : the frequency of callus induction was much high in MS or B5 with different concentration of 2,4-D , 6-BA and colchicine ;