查询词典 sporophytic

Apomixis allows the establishment of genetically stable seed propagating clones of crops,which can perpetuate themselves across countless sporophytic generations.

利用植物无融合生殖固定杂种优势，已被认为是一条生产杂交种子的高效途径。近年来，由于RAPD、RFLP和差异显示等技术的应用，已使植物无融合生殖的研究面貌一新。

Male gametogenesis is one of the key steps in plant sexual reproduction and is essential for the alternation between the diploid sporophytic phase and haploid gametophytic phase in the life cycle of higher plants.

植物雄配子体发生和发育是有性生殖的关键步骤之一，是高等植物通过有性生殖进行世代交替所必需的。

The conversion boundary of self-incompatibility was researched by sowing by stage. Sunshine of day and temperature was studied critically by investigating leafage and researching traits indoors. The results showed that the daily minimum temperature was the principal factor of affinity conversion and the affinity conversion boundary was 16.5~18.1℃.HE97 was primarily regard as self-incompatible line in this research. The method was by inbreeding and sib HE97, Half the silk of HE97 and Zheng58. Inbreeding and cross have been done simultaneously. The extending condition of pollen tube was observed by dying the silk after pollinating 4 hours. The individuals with pollen tube were observed having seeds, while the individuals without pollen tube were observed having few seeds or no seeds. So this study regard HE97 as sporophytic self-incompatibility .The planting ration of female parent HE97 and male parent 87-1 was 4:1.The nature cross-pollination was studied by the theory of endosperm xenity, the study show that the setting percentage of HE97 was 625%, in which the seed in self was 70% and the seed in hybrid was 30%. This was consistent with the study of silk anatomy structure, then come to the same conclusion: compatible pollen germination and fertilization can stimulate the self-incompatible pollen germination and fertilization in the same corn cob.

通过分期播种，进行了光温敏自交不亲和材料HE97亲和性转换区间的研究，依据田间跟踪调查叶龄及室内考种研究了HE97亲和性转换区间的光温临界值，结果表明：1日最低温度是影响HE97自交不亲和性的主要原因，亲和性转换区间在16.5℃～18.1℃之间。2通过HE97自交和姊妹交以及将HE97与郑58作为双亲，各自的花丝一分为二，分别正反交，授粉后4个小时分别取其花丝进行固定、染色，观察花粉管的伸长情况，根据结实率与花粉管伸长的对应关系，结果发现观察到花粉管的对应植株收获到了种子，而没有观察到花粉管的对应植株结实率极低或没有结实，本研究把HE97初步划为孢子体自交不亲和类型。3以HE97为母本，87-1为父本，按4母：1父行比，通过花粉直感效应研究天然异交率，结果母本HE97结实良好(62%)，其中自交粒占70%，异交粒占30%，结合花丝切片观察表明，亲和花粉的萌发及受精会导致落在同一果穗柱头上不亲和花粉的萌发不再受抑制。

On the basis of results of our test,we suggest that low temperature pretreatment changes content of endogenous IAA and iPA of anther,thus interrupts previous developmental direction of pollen and induces microspores develop from a gametophytic way to a sporophytic way.

根据实验结果，推测低温预处理改变了花药内源IAA和iPA含量，阻断了花粉原来的发育方向，使其由配子体的发育途径转向孢子体的发育途径。

Based on these observations, we predict that the transmission of GA-signaling genes occurs in a sporophytic manner, since the protein products and/or mRNA transcripts of these genes may be introduced into pollen-carrying mutant alleles, whereas GA synthesis genes are transmitted in a gametophytic manner, since these genes are preferentially expressed after meiosis.

基于这些观察，我们预测该遗传算法，基因信号传输时，在孢子的方式，因为蛋白质的产品和/或基因这些基因的转录可以引入花粉携带突变基因，而合成的基因遗传传递以配子体的态度，因为这些基因是优先减数分裂后表示。

Recent data have provided clear insights into some aspects of self-recognition and rejection in the SI response of three types,the single-locus sporophytic and two distinct forms of single-locus gametophytic SI.

高等植物在长期的进化过程中，通过雌蕊识别并拒绝遗传上相近的花粉，防止近亲繁殖、保持遗传多样性，该机制被称为植物自交不亲和性。

Epiphytic bacteria were isolated from sporophytic thallus collected from Qingdao and Dalian or gametophytic filaments stored in our lab of Laminaria japonica. Identification was done using both traditional physiological and biochemical way and molecular method. Phylogeny tree was established based on 16S rRNA gene sequence analyses, and some sequences of epiphytic strains from both sporophyte and gametophyte were different from all the sequences already exit and could be the new species.

采用生理生化和16S rRNA基因序列比对的方法对从两个海区采集的海带孢子体以及实验室中保存的海带配子体样品的外生菌分别进行组成分析，16S rRNA基因序列揭示了在海带孢子体和配子体的外生菌中都存在一些与现有数据库中序列的遗传关系较远的菌株。

The inheritance of poly-eggs in the crosses between APⅣ,IR36,MinghuiNo.77 and Longtepu B was examined.It was concluded that the production of poly-egg is probably controlled by gametophytic genes,rather than by sporophytic genes.

通过APⅣ与IR36、明恢77和龙特浦B杂交研究APⅣ的多卵遗传行为，表明APⅣ的多卵性状可能不是由孢子体基因决定的，而是由配子体基因决定的，属配子体遗传的范畴。

The arm repeat-containing 1 (ARC1) and the skp1-cul1-F-box proteins, belonging to the family of E3 Ub ligases, function in both the sporophytic and gametophytic self-incompatible responses, respectively.

自交不亲和反应也正是通过此途径实现的，ARC1(arm repeat containing 1)和SCFs (skp1-cul1-F-box-proteins)作为E3s分别在孢子体自交不亲和和配子体自交不亲和反应中起作用。

The inheritance of poly-eggs was investigated by crossing and reciprocally crossing APIV with monoembryonic rice variety IR36,Minghui No.77 and Longtepu B,respectively.It was suggested that the production of poly-eggs is probably controlled by gametophytic genotypes,rather than sporophytic ones.

通过多胚水稻品系APⅣ与单胚水稻品种IR36、明恢77和龙特浦B正反杂交，研究APⅣ的多卵遗传行为，表明APⅣ的多卵性状可能不是由孢子体基因型决定的，而是由雄配子体基因型决定，属配子体遗传的范畴。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。