倍性

The phylogenetic analysis based on the sequences in this region indicated that the y-type HMW glutenin subunits of Agropyron elongatum species were different from other subunits, whereas the x-type subunits of them were most closely related to that from the B genome.

推测四倍体长穗偃麦草中的E1基因组可能起源于二倍体的E基因组。与来自小麦族的A、B、D和G基因组部分亚基基因的启动子序列比较表明，小麦族的这一区域在进化上是相当保守的，不同基因组来源的序列同源性都在90%以上。

ASES is 59% identical to Artemisia cyclase cDNA clone cASC125, 50% identical to epi-cedrol synthase from A. annua, 48% identical to amorpha-4, 11-diene synthase from A. Annua, 39% identical to the 5-epi-aristolechene synthase from tabacco, 38% identical to vetispiradiene synthase from H. Muticus, 41% identical to the δ-cadinene synthase from cotton. The coding region of cDNA was cloned into procaryotic expression vector pET30a and overexpressed in E. coli BL21 (DE3). The cyclase proteins extracted from bacterial culture were found largely in the insoluble protein fraction. The tissue specific expression patterns were analyzed by RT/PCR.

克隆的倍半萜合酶氨基酸序列与烟草马兜铃烯合酶、莨菪岩兰螺旋二烯合酶、棉花杜松烯合酶的一致性分别为39％，38％和41％；与青蒿柏木脑合酶、紫穗槐二烯合酶和一个推测的倍半萜合酶克隆cASC125的一致性为50％，48％和59％。cDNA编码区序列被克隆进原核表达载体pET-30a，并在大肠杆菌BL21（DE3）中诱导表达，但过量表达的蛋白主要是以不溶性蛋白形式存在。

In particular, the documentation of rapid and extensive non-Mendelian genetic and epigenetic changes that often accompany nascent polyploidy is revealing: the resulting non-additive and novel gene expression at global, regional and local levels, and timely restoration of meiotic chromosomal behavior towards bivalent pairing and disomic inheritance may ensure rapid establishment and stabilization as well as its long-term evolutionary success.

特别是，所发现的在多倍体形成初期，快速且大量产生的非孟德尔遗传变异和表观遗传变异为相关机理的探讨提供了重要的启示。不同尺度上的基因非加性表达以及染色体二价体联会和二体遗传方式的快速建立可能对新形成多倍体的早期稳定和长期进化优势都具有重要意义。

Haplotype 1112 (of single nucleotide polymorphisms 44, 43, 56, and 63) was associated with increased IMT, while haplotype 1221 was associated with decreased IMT.

单倍型1112（属单核苷酸多态性44，43，56和63）与IMT增加有关，而单倍型1221与IMT减小有关。

Synthesis and chracterization of high ordered Ladderlike Polysilsesquioxane Since Brown first reported the synthesis of ladderlike polyphenylsilsesquioxane via "thermal equilibration polymerization"in 1960, it is still a question whether ordered ladderlike polysilsesquioxane can be prepared or not all over the world till now.

第一部分高规整性梯型聚硅氧烷的合成1960 年Brown 首次报道了用&热平衡缩聚法&合成含梯形结构的聚苯基倍半硅氧烷，但该报道受到许多研究者的质疑。至今40 多年来对能否合成真正规整梯形结构的聚倍半硅氧烷一直存在着争议。

To avoid the low yield in direct hydrosilylation addition of allyamine, 1, 1, 1, 3, 3, 3-hexamethyldisilazane is used to protect the amino groups, and the protective groups are removed easily after hydrosilylation addition, then the high yield of ladderlike copolymethyl-aminpropylsilsesquioxane was obtained.

为了克服将烯丙基胺直接与聚氢基甲基倍半硅氧烷进行硅氢加成反应接枝效率低的缺点，探索用六甲基二硅氮烷对烯丙基胺预保护，硅氢加成反应后再脱保护，从而以较高产率制备了含胺丙基、甲基的反应性梯形共聚倍半硅氧烷。

The rates of nonsynonymous substitutions occurred at a significantly lower frequency than that of synonymous substitutions, which were not consistent with the common rule.

在这些扬子鳄样本中共检测到34个单倍型，每个亚种群内检测到的单倍型数量分别为15，9和10个，与其他一些动物如哺乳动物和鲤科鱼类相比，扬子鳄MHC Ⅱ类B基因第3外元多态性较高。

Meditations of evolution increasingly vaster: of the moon invisible in incipient lunation, approaching perigee: of the infinite lattiginous scintillating uncondensed milky way, discernible by daylight by an observer placed at the lower end of a cylindrical vertical shaft 5000 ft deep sunk from the surface towards the centre of the earth: of Sirius 10 lightyears (57,000,000,000,000 miles) distant and in volume 900 times the dimension of our planet: of Arcturus: of the precession of equinoxes: of Orion with belt and sextuple sun theta and nebula in which 100 of our solar systems could be contained: of moribund and of nascent new stars such as Nova in 1901: of our system plunging towards the constellation of Hercules: of the parallax or parallactic drift of socalled fixed stars, in reality evermoving wanderers from immeasurably remote eons to infinitely remote futures in comparison with which the years, threescore and ten, of allotted human life formed a parenthesis of infinitesimal brevity.

347关于宇宙日益扩大进化的冥想：新月期的月亮，即使在近地点也看不见。从地表向地轴挖掘纵深五千英尺的圆筒状垂直轴，一个观察者呆在轴底儿上，就连白昼也辨认得出那漫无止境、网络状、亮光闪闪、非凝结性的银河。天狼距地球十光年（五七、000、000、000、000英里）；体积大于地球九百倍；大角；岁差运动；有着&猎户&腰带、六倍于太阳的&伐二&以及星云的猎户座，星云中能容纳我们的一百个太阳系；死去的和新生的星宿，例如一九0 一年的那颗&新星&我们的太阳系正朝着武仙座冲去；所谓恒星的视差或视差移动，也就是说，实际上恒星是在不断地从无限遥远的太古朝无限遥远的未来移动着。相形之下，人的寿命充其量才七十年，不过是无限短暂的一段插曲而已。

The flow cytometry was used to measure the DNA ploidy type and cell proliferous ratio of NP,BPH and PC.

PC组异倍体率为65.71%；NP组和BPH组均为DNA二倍体。PC组细胞增殖各期比值与BPH组、NP组差异有显著性(P.01)。

The properties of product: May replace copper, the Pakistan alloy and so on the nobie metal, has the fine self lubrication, the high anti-impact intensity and the bending strength, saves the spouse, the comprehensive cost low status merit, the rub proofness is copper2-3time, is hard4-6time.

产品性能：可代替铜、巴氏合金等贵重金属，具有优良的自润滑性，高耐磨性、耐腐蚀性、高抗冲击强度和弯曲强度，节省配偶件，综合成本低等优点，耐磨程度是铜的2-3倍，是铁的4-6倍。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。