查询词典 ks

During the postgenomics era the information about genomic sequence and gene functions provides a new foundation for evolutionary biology and ecology As the first whole-genome sequenced plant Arabidopsis thaliana and its wild relatives have played a critical role in understanding the evolution of genomics and speciation Both A halleri and A lyrata are closely related to the model species A thaliana A halleri ssp gemmifera occurs in northeastern China Japan and Taiwan; while its sister A halleri ssp halleri is mainly distributed in Europe Geographical barriers such as Tienshan Mountain Range isolate these intraspecific sisters Likewise A lyrata ssp kamchatica and ssp lyrata occur in East Asia and North America respectively Such distribution patterns seem to be consistent with allopartic speciation The comparison between ancestral and extant polymorphism by multilocus can be informative about the population genetics of speciation In this study we collected and analyzed DNA sequences of 98 genes from four wild relatives of A thaliana A halleri ssp gemmifera A halleri ssp halleri A lyrata ssp kamchatica and A lyrata ssp lyrata The ancestral states of these four species were compared to each other in terms of level of genetic variation However the ancestral species at the time of speciation were substantially more polymorphic than the extant geographical populations The observations are not fully compatible with speciation by strict allopatry At some species pairs parapatric speciation seems more reasonable in speciation of Arabidopsis The 98 gene sequences are also used for the congruence test between gene genealogy and species phylogeny Only 28 genes support the species phylogeny but there are 23 genes supports another major genealogy { lyrata} thaliana Based on the phylogenetic position change of A lyrata ssp kamchatica and Ks value for each species pair suggested the recent directional gene flow between A halleri ssp gemmifera and A lyrata ssp kamchatica

阿拉伯芥是第一个完成基因体定序的开花植物，其基因体资讯提供植物学研究的重要依据；在解析阿拉伯芥属物种的亲缘关系以及种化机制等重要的演化议题时，阿拉伯芥近缘的野生物种自然成了不可或缺的关键；跟阿拉伯芥近缘的物种包括A halleri及A lyrata，其中A halleri ssp gemmifera主要分布於中国东北、日本以及台湾，与近缘的A halleri ssp halleri其分布於欧洲隔著天山及大陆的障蔽，而A lyrata ssp kamchatica主要分布於东北亚及台湾，与分布於北美五大湖的A lyrata ssp lyrata被北极圈所分隔，这样的分布模式暗示异域种化的可能。藉由多基因分析比较祖先物种与现生物种遗传歧异度的相关可提供讯息探讨种化时期的族群遗传结构，本研究针对A halleri ssp gemmifera、A halleri ssp halleri及A lyrata ssp kamchatica、A lyrata ssp lyrata四个物种，两对互为亚种的姊妹群，以阿拉伯芥为外群进行研究，在四个物种完成98个同源基因的分子序列，利用套装软体MCMCcoal来估算祖先物种的遗传变异，亦估算现生物种的核苷酸歧异度，观察到？多物种配对中祖先物种遗传多型性大於现生物种DNA歧异度，显示异域种化模型并无法完全解释阿拉伯芥属物种的种化模式，在某些物种配对间邻域种化模式应比异域种化更为可能；在基因树与物种树的比较，98个基因片段的亲缘模式只有28个是与已知物种树一致的，有23个基因其树状图支持{ lyrata} thaliana的型式，藉由kamchatica位置的变化以及估算各物种配对间的平均同义置换率，推测在A halleri ssp gemmifera与A lyrata ssp kamchatica间具有近代的单方向基因交流。

If people disregard the great works of the past, it is because these wor ks no longer answer the needs of the present.

如果人们忽视了过去的伟大成就，那只能是因为这些成就已经不再满足现今的需要了。

The bacteriostatic experiment showed that 13 strains had antifungi activity and 2 strains had resistant gram-positive bacteria.

抑菌实验表明，携带KS基因的16株放线菌中，13株具有抑制真菌活性，2株具有抑制革兰民阳性细菌活性。

Fully 70% of bla ks now have a favourable impression of Mr Obama.

足有70%的黑人选民现在对奥巴马印象很好。

Remember gouge can be blocked but kidney shot being a 0 damage special can not be blocked.

记住gouge可以被封锁而不会被封锁的ks伤害为0。

Broo ks continues on, scooping the cigarettes off the cart and into his pocket.

接着， 他又从小车中取出香烟装在兜里。

The technology of treating low strength wastewater-- facultative biochemical technology is introduced.

介绍了低浓度污水处理工艺技术——兼性生化工艺；根据试验研究建立了兼性生化动力学模型Ns=Ks，求出了模型常数Ks=0。

These samples provided us widi data on the ability of the soil to adequately supply the crop with needed nutrients for normal plant growth and the nutritional status of the peai trees themselves.

而 P、K的含量，厢面为 253 ms Ks'、314 ms Ks'，厢沟为143 ms K合'、168 ms K合'。七月份的样品分析结果呈现相似的变化。N的含量厢面、厢沟分别为 903 mg Kg叫、730 mg Kg叫。P和 K的含量厢面、厢沟分别为185 mg Kg'、306 mg Kg'和 122 mg Kg－'、295 mg Ks－'。

Our products are many varieties sale, leading products have DB210, DB211, DB212 series of high temperature and high pressure dyeing machine, ASME-DB series of high-temperature jet dyeing machine overflow, DB-I-type cheese yarn rapid dryer, KS Series of high temperature and high pressure, at normal temperature and pressure jet Jiaosha dyeing machines, high temperature, at room temperature on the prototype, and other products, dyeing and finishing factories at home and abroad is the ideal choice.

本公司产品繁多，品种俱全，主导产品有DB210、DB211、DB212系列高温高压染色机、ASME－DB系列高温溢流喷射染色机，DB－I型筒子纱快速烘干机、KS系列高温高压、常温常压喷射式绞纱染色机，高温、常温小样机等产品，是国内外染整厂家的理想选择。

The formal potentials in cyclic voltammograms of these 3+ valence complexes are followed: Co〓-TPPS (-0.08V )＞Fe〓TPPS (-0.14V)＞Mn〓-TPPS (-0.23V). The electrochemical reaction of Mn〓-TPPS is reversible, and both of Co〓-TPPS and Fe〓-TPPS are quasi-reversible. The standard heterogeneous rate constants of Co〓-TPPS and Fe〓-TPPS were determined to be 1. 4×10〓cm/s and 1.4×10〓cm/s respectively. The rates of electrode reaction are as followed: Mn〓-TPPS＞Co〓-TPPS＞Fe〓-TPPS, e.i. Mn〓-TPPS is the most easily oxidized by the dissolved oxygen, and Fe〓-TPPS is oxidized slower than Co〓-TPPS. Ni〓-TPPS can not be oxidized. It is considered that oxygen plays an important role in the valence change of central metal atom and the rate of electron transfer in some metalloporphyrins.

三价金属卟啉络合物在循环伏安图上可得到三价到二价的还原和氧化响应，电极电位从大到小排列为：Co〓-TPPS(-0.08V)＞Fe〓-TPPS(-0.14V)＞Mn〓-TPPS(-0.23V)，电极反应可逆性也不相同，Mn〓-TPPS是可逆过程，Co〓-TPPS、Fe〓-TPPS是准可逆过程，实验测得Co〓-TPPS的标准电极反应速率常数ks＝1.4×10〓cm/s，Fe〓-TPPS的ks＝1.4×10〓cm/s，电极反应的速率从大到小为：Mn〓-TPPS＞Co〓-TPPS＞Fe〓-TPPS，即Mn〓-TPPS最容易被溶解氧所氧化，Fe〓-TPPS被氧化的速度最慢，Ni〓-TMPyP不能被氧化，因此我们认为溶解氧对金属卟啉中心离子的价态和电子转移速率起着重要作用。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。