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   genetic character 在 生物学 分类中 的翻译结果: 查询用时:0.194秒
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genetic character
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  遗传性状
    By re-screening,a mutant F4-3 was obtained. Compared with the parent strain,its production of CoQ_(10) reached 24.766 mg/L,and the increase rate was 76%,and its genetic character was stable.
    经复筛,分离得到了1株F 4-3菌株,其发酵平均单位达24.766 m g/L,较出发菌株提高了76%,且该菌株遗传性状稳定。
短句来源
    Genetic factors also affect this ratio with a heritability factor of 0.2~0.5. Seed dimorphism is a quantitative genetic character and is under the control of more than two genes (locus).
    遗传因素也影响二形性种子的比例,其遗传率一般在0.2~0.5之间,是一种数量遗传性状,受多个基因控制。
短句来源
    Evidences collected showed that the frond thickness was a genetic character.
    这表明海带叶片厚度是一个遗传性状
短句来源
    The surface ornamentation of sporoderm has been studied under SEM in 21 species of 9 genera of Sinopteridaceae. Sporoderm ornamentation is a stable genetic character. The characters of the ornamentation of genera vary remarkbly.
    中国蕨科9属21种孢子形态的SEM观察结果表明:孢壁纹饰是一个稳定的遗传性状,不受植株分布地区、海拔高度、孢子成熟度以及植株叶片的局部变异的影响。
短句来源
    The chromosome(s) or its fragment successive losses,recombination and segreation led to haploidization during the conidia formation period. After at least 4 generations of parasexual cycle,the genetic character of heterokayon could get to relative stable.
    在分生孢子形成的单倍化过程中 ,异核体中的染色体或其片段发生连续丢失 ,至少经 4代准性循环 ,遗传性状才会趋于相对稳定。
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  遗传特性
    A Study of Genetic Character and Foreign OMT/ PGH Gene Integration in Transgenic Swine
    转OMT/PGH基因猪外源基因整合及遗传特性研究
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    A Study of Genetic Character of Cultivar Shiyuan 321 from G. barbadense ×G. thurberi ×G. hirsutum Using Isozyme and RAPD Techniques
    用同工酶和RAPD技术研究棉花三元杂种石远321新品种的遗传特性
短句来源
    Using biochemical markers, microcytotoxicity test and Ouchterlony methods, the genetic character of 156 wild mice (Mus musculus) from 6 sites in 4 zoogeographical regions of China were investigated, and comparison with 8 strains of laboratory mouse were studied by authors.
    本文用同工酶电泳法、微量细胞毒法和免疫双向扩散法对我国4个动物地理区的6个采集点的156个小家鼠(Mus musculus)进行了遗传特性的调查。 结果发现:在全部被测的13个位点中,小家鼠在7个位点上存在着多种实验小鼠中罕见的基因组成;
短句来源
    The IRM - 2 mouse is inbred strain from Institute of Radiation Medicine (IRM) of CAMS, however, the genetic character is still unclear.
    IRM-2小鼠是我国自己培育的近交系小鼠,其遗传特性尚不完全清楚.
  “genetic character”译为未确定词的双语例句
    Conclusion Distribution of HLA-A,B,DRB1 genetic character in Hubei Chinese Han was resemble to southern Han population , while their own characteristics still existed.
    结论湖北汉族人群HLA-A、B、DRB1等位基因分布接近南方汉族人群之间,并有其自身特点。
短句来源
    COMPARATIVE STUDIES ON THE GENETIC CHARACTER OF THREE COLONIES OF OUTBRED MICE
    三个远交群小鼠群体遗传特性的比较研究
短句来源
    Genetic Character of Mus musculus in Different Zoogeographical Regions of China
    不同动物地理区小家鼠遗传特性的研究
短句来源
    COMPARATIVE STUDIES ON THE GENETIC CHARACTER OF Mus musculus AND LABORATORY MOUSE
    小家鼠和实验小鼠遗传特性的比较研究
短句来源
    Probing into the Course of Formation of Genetic Character of KM Mouse
    昆明小鼠遗传特性形成过程探讨
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  genetic character
Is the frequency of apomeiosis in the Rhodophyta a genetic character
      
Such ♂♂ also were able to elicit immediate phenotypic changes in their female mating partners, at intensities expected from their genetic character, as previously observed with original parental ♂♂ in this species.
      
Strain-differences of sensitivity to volatile anesthetics and their genetic character in mice
      
Based on these results, we are developing a new gene therapy that targets the genetic character of pancreatic cancer, using mutant adenoviruses that are selectively replication-competent in tumor cells.
      
We surmise that isoprene emission is a genetic character which evolved ancestrally in the oak genus since this is the prevalent emission type in oaks widespread around the world and adapted to different environments.
      
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The brown alga Laminaria japonica is an important seaweed widely cultivated in this country. The inheritance of its frond length and width has been studied. This paper discusses only the inheritance of the frond thickness.According to our observation the development of the frond thickness was influenced by many environmental and genetic factors.Evidences collected showed that the frond thickness was a genetic character. Firstly, the frond thickness showed a positive correlation of r=0.820 between the parent...

The brown alga Laminaria japonica is an important seaweed widely cultivated in this country. The inheritance of its frond length and width has been studied. This paper discusses only the inheritance of the frond thickness.According to our observation the development of the frond thickness was influenced by many environmental and genetic factors.Evidences collected showed that the frond thickness was a genetic character. Firstly, the frond thickness showed a positive correlation of r=0.820 between the parent and the offspring in our experiment. Secondly, the frond thickness of breed II3 was observed to be significantly greater than that of breed H4 for four successive years.The frond thickness was found to be a quantitative character, showing a continuous variation. Multi-factors were believed to control the growth of the frond thickness.The genetic factors were suspected to act on the cell-size and the number of cellular layers in the cortex of the frond. The thick-frond breed H3 possessed six cell layers more than the thin-frond breed H4. Observations on the early growth of the germlings showed that the genetic factors seemed to begin to act in the young spc-rophytes about 2-4 mm long.As the natural population of this seaweed was found to be very heterozygous in genetic content, various inbred lines or breeds with different frond thickness could be obtained by intensive inbreeding and vigorous selection.

本文报道连续四年观察几个海带自交系叶片厚度的生长情况,得到了以下结果:(1)亲本海带叶片的厚度与子代的叶片平均厚度之间有着十分显著的正相关;不同自交系海带累代保持各自叶片平均厚度的特征,即厚叶品系(H_3)的叶片总是最厚的,薄叶品系(H_4)的叶片总是最薄的。这表明海带叶片厚度是一个遗传性状。(2)海带叶片厚度是一个典型的数量性状,呈连续变异。它的遗传方式可能是属于典型的数量遗传,受微效多基因的控制。(3)海带叶片厚度的遗传因子主要是作用于叶片的皮层组织,它控制皮层组织细胞的层数和皮层细胞的大小。

The development of embryo sac in Prunus americana Marsh var. is often abnormal. The number of egg apparatus cells, polar nuclei, antipodal cells, and their situations in the embryo sac may be abnormal. The structer and behaviour of the nuclei of the egg apparatus cells, polar nuclei, antipodal cells may be abnormal. The nuclear substances may migrate out.Fertilization is often abnormal. The number, size, morphology, and structure of the spermatids entering the embryo sac may be variable. The spermatidsmay be...

The development of embryo sac in Prunus americana Marsh var. is often abnormal. The number of egg apparatus cells, polar nuclei, antipodal cells, and their situations in the embryo sac may be abnormal. The structer and behaviour of the nuclei of the egg apparatus cells, polar nuclei, antipodal cells may be abnormal. The nuclear substances may migrate out.Fertilization is often abnormal. The number, size, morphology, and structure of the spermatids entering the embryo sac may be variable. The spermatidsmay be tad-pole shaped, probably helpful for spermatid active motion. There may be polysperms entering egg apparatus, mono-fertilization or single polar nuclear fertilization. The chromatic substances of the spermrnatids may migrate out.The abnormal development of embryo sac, abnormal spermatids and abnormal fetilization induce degeneration. Thus the nuts decay and the fruits drop early. For controlling we suggest apply methods of changing genetic characters.

鸡心李(Prunus americana Marsh var.)胚囊发育多数不正常。卵器,极核,反足细胞的数目和在胚囊内的部位有不正常。卵器细胞核,极核,反足细胞核的结构动态有不正常。核物质有穿出现象。 受精作用多数不正常。进入胚囊的精子数目、大小、形态、结构有差异。精子有蝌蚪形者,可能有利于主动运动。有单精受精,多精进入卵器或单极核受精。精子染色质有穿出现象。 胚囊发育不正常,精子不正常,受精作用不正常,导致败育,果仁腐烂,果实早落。防治方法建议用人工引变,改进遗传性状。

This article deals with the conditions of formation, regeneration and fused recombination by protoplasts of four auxo-trophic strains of St. mycarofaciens var si-chuanensis n.var 113, as well as the metbod of isolating stable fused recombinants.The protoplasts of St. mycarofaciens were formed by a modification of the gly-cine-lysozyme method.The cell wall of my-celia grown in the S-medium containing 0.5 ~1.0% glycine was sensitive to lysozyme, but it wasn't partially growth-inhibitory concentration of glycine....

This article deals with the conditions of formation, regeneration and fused recombination by protoplasts of four auxo-trophic strains of St. mycarofaciens var si-chuanensis n.var 113, as well as the metbod of isolating stable fused recombinants.The protoplasts of St. mycarofaciens were formed by a modification of the gly-cine-lysozyme method.The cell wall of my-celia grown in the S-medium containing 0.5 ~1.0% glycine was sensitive to lysozyme, but it wasn't partially growth-inhibitory concentration of glycine. The regenerated rate of protoplasts on complete medium (MgSO4 doubling) 5.8~52% was higher than R2-medium(0~10.3%). The fusion of protoplasts were effective with PEG 4000 and 6000, 30% concentration (w/v) with 3.68%CaCl2 solution allocation,treated 30 minutes. Electronic microscopic observation showed the procedure of protoplasts regeneration.The stable genetic recombinants were obtained by indirect selection method. The fused recombination frequency was 10-2 to 10-3.A11 results showed a marked difference on morphologic and genetic characters between the recombinants and parents, and between the different recombinants.The antibiotic producing ability of the stable fused recombinant C69 was 40% higher than its parents strains. The strain C39-112 obtained by UV treatment was successfully isolated and its antibiotic yields were 150% higher than its parent strains. Astrain C1 without any antibiotic producing ability was also obtained.

用甘氨酸—溶菌酶方法成功地分离生米卡链要菌(S.mycarofaciens)原生质体。在MgSO_4加倍的完全培养基(cm)上,原生质体再生频率远远超过R_2再生培养基。用3.68%的CaCl_2溶液,配制成30%(w/v)的PEG4000或6000溶液,可有效地诱导生米卡链霉菌原生质体融合,融合重组频率10~(-2)~10~(-3)。融合重组体和亲本在菌落形态、孢子形态和抗生素产量上有显著差异,不同的融合重组体之间,也表现了这些差异。实验分离到抗生素生产能力超过亲本40%的C_(69)菌株,经紫外光诱变后,又获得抗生素能力超过亲本15%(均以两亲本的平均值计)以上的C_(64112)菌株。融合重组体对紫外光的敏感度低于亲本,而抗生素生产能力的正变频率超过亲本。

 
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