八倍体

Morphological and Cytogenetics of octoploid trititrigias-Maicao No. 9, distant bred from the progeny of common wheat and thinopyrum intermedium were studied.

对普通小麦与中间偃麦草远缘杂交后代中选育的八倍体小偃麦－麦草9号进行了形态学和细胞学鉴定。

Anther culture was used as an effective method for selecting either octoploid orpolyhaploid triticale lines with high rates of both callus inductionand green plantletdifferentiation.

用花药培养选择具有高诱导率和高分化率的高花培效率的八倍体小黑麦(2n=8x=56)和单倍体小黑麦(n=4x=28)是很有效的。

The efficiency of octoploid triticale anther culture was practically onthe same level as that of common wheat,namely,2.5 green pollen plants per hundred an-ther.

八倍体小黑麦的花培效率同普通小麦一样，每百个花药可出2.5株绿苗。

The genomes of octoploid Tritielytrigia types,7430,68,693,7631 and 784,dev eloped from the hybridization between Triticum aestivum and Elytrigia elongata ( Agropyron elongatum,2n=70) have been studied.

本文对普通小麦与长穗偃麦草(Elytrigia elongata=Agropyron elongatum，2n=70)染交选育出来的5个八倍体小偃麦的染色体组进行了研究。

Regenerated plants from the two reed ecotypes showed, after a growth season, similar morphology and the same chromosome number (2n=8x=96, octoploid) as the wild plants.

再生植株在形态上和染色体数目上（2n=8x=96，八倍体）均与野生亲本相同。

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。

In the BC〓F〓 and BC〓F〓 generation of Yannong15×Thinopyron intermedium hybrid, 4 octoploids which had chromosome number of 2n=56 and could form 28 bivalent at PMC MI, 14 disomic addition lines which had chromosome number of 2n=44 and could form 22 bivalent at PMC MI; three monosomic addition lines which had chromosome number 2n=43 and had the chromosome configuration of 21Ⅱ+1Ⅰ at PMC MI, 1 substitution line which had chromosome number 2n=42 and could form 21 bivalent at PMC MI were selected by observation of mitosis in root tip cell and meiosis in pollen mother cell.

在烟农15与中间偃麦草杂交的BC〓F〓和BC〓F〓代中，通过根尖有丝分裂和花粉母细胞减数分裂中期Ⅰ观察选出4个2n=56，PMC MI染色体构型为28Ⅱ的八倍体小偃麦；14个2n=44，PMC MI染色体构型为22Ⅱ的双体异附加系；3个2n=43，PMC MI染色体构型为21Ⅱ+1Ⅰ的单体异附加系；1个2n=42，PMC MI染色体构型为21Ⅱ的异代换系。

It also reported that cells treated with edelfosine came through the whole cell cycle without nuclei cleavage, and cells were blocked in G_0/G_1 and subsequent formation of quadplex or octploid nuclei. However, the mechanism still is unknown that edelfosine inhibits cytokinesis.

也有报告指出，依地福新处理过的细胞能经历完全的细胞周期，但不能进行分裂，使细胞聚集在G_0／G_1期，形成四倍体或八倍体细胞。

Cytologic results showed that chromosome numbers of root cell are 2n 56, and 28 bivalents can be observed at PMC MI in the six 8x Trititrigia.

细胞学鉴定结果表明，6个八倍体小偃麦的根尖细胞染色体数目为2n=56，花粉母细胞减数分裂中期Ⅱ染色体构型为2n=28Ⅱ，具有高度的细胞学稳定性。

The leaf esterase,endosperm esterase, root esterase and coleoptile esterase zymogram phenotypes in Set II alien addition Lines of wheat-wheatgrass, octoploids of wheat-wheatgrass, common wheat and wheatgrass were analyzed.

本文分析了小冰麦异附加系列II、八倍体小冰麦、普通小麦和天兰冰草的叶片酯酶、胚乳酯酶、根酯酶和胚芽鞘酯酶和酶谱表型。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失