查询词典 EST

Exploring novel genes and gene combinations are of primary importance in plant drought-tolerance and water-saving research. Based on the EST sequence of MYB gene obtained in the research on molecular basis of drought-tolerance and water-saving in broomcorn millet Panicum miliaceum L.

根据在糜子抗旱节水分子基础研究中获得的一个糜子 MYB 基因的EST序列，以其序列及水稻MYB18基因的序列为基础设计引物，扩增得到1 739 bp的全长基因组序列。

Is an important cash crop, and many SSR markers have been developed from genomic and EST in Gossypium.

是重要的经济作物，已经从基因组和EST开发了大量SSR分子标记。

22 Of 22 pairs EST-SSR primers from Chinese cabbage/rape respectively had amplification products in soybean,wheat and maize,the rate of amplification was 81.8%,95.4%,100%,respectively;10 of 22 pairs EST-SSR primers showed polymorphism in monocotyledons wheat and maize,13 in dicotyledons oilseed rape and soybean,7 in both monocotyledonous and dicotyledonous crops.

（1）30对小麦EST-SSR引物中，有29，28和26对引物分别在玉米、油菜和大豆中有扩增产物，可扩增率分别为96.7%，93.3%和86.7%；其中分别有12对和9对引物在单子叶作物小麦和玉米及双子叶作物大豆和油菜中的扩增产物显示多态性，有4对引物在4种作物中的扩增产物均显示多态性。

Purpuraristatus, the growth, fertility, chromosome configuration, EST isozyme etc. were analyzed in this paper. The results showed that the growth potentiality of (E. sibiricus×E. purpuraristatus) F2 and (E. purpuraristatus×E. sibiricus) F1 were much stronger than their parents, the plant height of the former was 143.2 cm. The whole plant was reseda, the latter was 129.7 cm. The spike nodding of two hybrids were in the middle of their parents, the anther was yellow; the pollen fertility was 0.02%~0.03%, seed set was 0; the average chromosome configuration of former pollen mother cell at PMC M Ⅰ was 6.90Ⅰ+14. 02Ⅱ, the latter was 7.82Ⅰ+13.59 Ⅱ, and lagging chromosome and bridge fragment were observed at meiosis anaphase Ⅰ the EST of the two hybrids F1 and their parents at tillering stage was some certain different in locus, number and intensity.

结果表明，正交F1和反交F1植株的生长势均很强，正交F1株高143.2 cm、全株浅绿色，反交F1株高129.7 cm、全株灰绿色；正、反交F1的穗型均呈双亲中间型，花药呈黄色，花粉可育率0.02%~0.03%，结实率为0，说明杂种高度不育；正交F1的花粉母细胞减数分裂中期Ⅰ平均染色体构型为6.90Ⅰ+14.02Ⅱ，反交F1为7.82Ⅰ+13.59Ⅱ，减数分裂后期丁有落后染色体和染色体桥等不规则现象；亲本及其正、反交杂种F1分某期幼叶的EST同工酶酶带的位点、数目和强弱均存在一定差异，可作为亲本及杂种在蛋白质水平识别的重要依据。

The EST enzyme activity was higher in the sporophyll than that in the stems and leaves.

孢子叶EST酶活力要较茎和叶的酶活力强很多，3种裙带菜孢子叶中EST酶活力相同。

Methods:The clinical data of 6 cases that received LC combined with EST herapy for cholecystolithiasis and choledocholithiasis were analyzed retrospectively.

为6例患者行LC＋EST。结果：本组病例均在术前行B超检查及MRCP检查，诊断为胆囊结石及胆总管结石，行LC＋EST均获成功。

Large scale analysis of EST in the Haliotis discus hannai is underdeveloped.

皱纹盘鲍大规模EST的分析研究较少，为了研究其基因组转录本的基本特征并为皱纹盘鲍中开发EST。

The frequency of EST-SSRs was 6.3%. The dinucleotide repeat motif was the most abundant SSR, accounting for 71.8%, followed by 9.1%, 8.1%, 5.7% and 5.3%, respectively,for tri-, hexa-, penta- and tetra-nucleotide repeats.

结果表明，从绵羊皮肤组织相关的EST序列中搜索到微卫星209个，含有微卫星的序列196 个，占整个EST 序列数据库的6.3%，其中双碱基重复150个，三碱基重复19个，四碱基重复12个，五碱基重复17个，六碱基重复11个。

The electrophoresis patterns of EST and SOD had a tissue-specific distribution. The Sod should consist of two loci, which code dimeric s-SOD and tetrameric m-SOD respectively.

结果表明，二色裂江珧组织内的EST和SOD存在不同程度的组织特异性，EST共检测出15条酶带，SOD检测出8条酶带，且两种同工酶在消化盲囊中活性最高。

EST sequence of LDH-C gene from black-lipped pika was cloned by PCR with degenerate primers; then the full length of open reading frame and 3'UTR sequence were cloned by RACE technique.

方法］采用简并引物PCR克隆得到黑唇鼠兔LDH-C基因的EST序列，再根据EST序列采用RACE技术克隆出基因的开放阅读框全长，和3'UTR序列。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。