异倍体

Allopolyploid plants have a wide distribution in the nature.

异源多倍体植物在自然界中广泛分布。

Allopolyploid played an important role in crop genetic and germplasm enhancement.

异源多倍体在作物遗传改良和种质创新中发挥着重要的作用。

GISH technique was applied to TAF46 a partial amphiploid (2n=8x=56) derived from a Thinopyrum intermedium×Triticum aestivum hybrid and to 6 of the possible disomic addition line derived from it to determine the genome origin of the alien genome and the addition lines.

应用GISH对小偃麦部分双二倍体TAF46(2n=8x=56)及其衍生的6个二体异附加系的中间偃麦草染色体组种类进行了分析、鉴定。

In the early stage of breast cancers, diploid cells (DNA quantity, 2C) and the nuclear size were slightly enlarged, while in the late stage of breast cancers, heteroploid cells (DNA quantity, 5C, even 9C) were seen and the nuclear size was significantly enlarged.

乳腺癌早期，细胞核为2倍体（DNA定量为2C），核面积略大；而乳腺癌晚期，可出现5C，甚至9C异倍体细胞，核面积明显增大。

The analysis result indicates that the chromosome number of 38 accessions is ranged from 63 to 90 as same as septuploid, octoploid, enneaploid and decaploid, respective.

结果发现台湾鱼腥草收集品染色体数目介於63~90条之间，分别为七、八、九及十倍体，另发现染色体数84与85条之异数体收集品。

One octoploid 990256, four disomic addition lines E99006, E99009, E99010, E99015-8 and one substitution line E99018 resistant to powdery mildew were selected by identification of artificial induced powdery mildew disease.

经白粉病人工接种鉴定，从中选出了一个抗白粉病的八倍体小偃麦990256，四个抗白粉病异附加系E99006、E99009、E99010、E99015-8、一个抗白粉病异代换系E99018。

To induce diploid gynogenesis in summer flounder, eggs were fertilized with heterogenous cryopreservative sperm of Lateolabrax japonicas , which was irradiated with UV ray to be genetically inactivated, and cold shock was used to prevent extrusion of the second polar body.

中文摘要：用冷冻保存的花鲈精子作为异源精子，采用紫外线对精子进行照射使其遗传物质失活，然后与卵子进行"授精"，可以刺激犬齿牙鲆鱼卵进行雌核发育，在受精后一定时间采用冷休克处理"授精"卵，抑制第二极体排出成功获得了犬齿牙鲆雌核发育二倍体鱼苗。

In the studies on transferring and identifying alien chro-mosomes into wheat,the combined use of mitotic and meioticchromosome N-banding is also successfully practiced in deter-mination of T.durum-H.villosa amphipoid,five wheatalien disomic additions with H.villosa chromosomes,〓〓,alien sulstitution line with chromosome 〓 andsome translocation lines.

在外源染色体导入、鉴定研究中，利用根尖有丝分裂中期染色体和花粉母细胞减数分裂中期Ⅰ染色体的N-分带，快速、准确地鉴定了硬粒小麦一簇毛麦双二倍体、普通小麦一簇毛麦异耐加系V〓、V〓、V〓、V〓和V〓，普通小麦一簇毛麦异代换系V〓以及一些具有易位的杂种后代。

Using tertiary trisomes and hypoploids of a set of B-10L translocations, the CL-repeat signals and the variants in each of the three distal heterochromatic regions were identified.

利用一系列的B-10L易位染色体所产生的三级三染体和亚倍体，可以判断CL-repeat讯号及其变异产物在三个远端异染色质区(DH1， DH2， DH3)上的分布位置。

To induce diploid gynogenesis in summer flounder, eggs were fertilized with heterogenous cryopreservative sperm of Lateolabrax japonicas , which was irradiated with UV ray to be genetically inactivated, and cold shock was used to prevent extrusion of the second polar body.

中文摘要：用冷冻保存的花鲈精子作为异源精子，采用紫外线对精子进行照射使其遗传物质失活，然后与卵子进行&授精&，可以刺激犬齿牙鲆鱼卵进行雌核发育，在受精后一定时间采用冷休克处理&授精&卵，抑制第二极体排出成功获得了犬齿牙鲆雌核发育二倍体鱼苗。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。