减数分裂的

It is a complex process involving cell division, differentiation and interaction between cells in the microenvironment of the seminiferous tubule.

睾丸生精小管中的生精细胞先后经过三个阶段的变化：精原细胞的增殖，精母细胞的减数分裂和精子细胞的变态过程，最终产生成熟的精子。

The results of our study have demonstrated that,(1) quadrivanlents in diakinesis Ⅰ are ideal materials for micromanipulation;(2) compared with the instrument used to microisolate chromosomes with a dissecting needle perched on a dissecting microscope outfitting with a micromanipulator or laser beam, the equipment most common used in our study is relatively inexpensive and the techniques could be established as a standard procedure in the ordinary laboratory;(3) the gene mapping methods developed in the study is an efficient and fast approach that could advance gene mapping of fish and other species.

本研究结果表明，（1）减数分裂Ⅰ终变期染色体标本是进行染色体显微操作研究的理想材料；（2）与显微操作仪和微激光分离相比较，本研究所探索的显微分离染色体方法不需要昂贵仪器，在常规实验室即可操作，具有广泛的普及应用意义；（3）把染色体显微操作应用于基因定位这种构思是完全可行的。这种基因定位方法简明而快捷，从而为鱼类及其它物种染色体定位研究开辟了一个新的研究方式和途径。

According to the number and behavior of B genomechromosomes, all hybrid plants were classified into three types. All somatic cells of TypesⅠplants contained 16 B genome chromosomes which formed 8Ⅱat diakinesis and shown8:8 segregation at anaphase; TypesⅡcontained 14 B genome chromosomes whichformed 6Ⅱ+2Ⅰat diakinesis and showed 6:8 or 7:7 segregation at anaphase. TypesⅢcontained above two chromosomes number and behavior.

同时根据B基因组DNA为探针的GISH结果，以细胞中B基因组染色体的数目及减数分裂时的配对及分离的方式，将所有杂种植株分为三大类：Ⅰ类具有16条B基因组染色体，以8Ⅱ的方式配对，以8：8分离，共32株；Ⅱ类具有14条B基因组染色体，以6Ⅱ+2Ⅰ方式配对，以7：7或者6：8的方式分离，共4株：Ⅲ类植株包含有上述两种细胞类型类型，共1株。

The dominant male sterility was expressed normally in the new Taigu genic sterile wheat carrying the intergenomically translocated Ms2, and the female fertility mechanism in its male sterile plants was normal as well. Observation of the chromosome configuration at meiosis of pollen mother cells of the young ears of the sterile plants showed that they were euploid plants (2n=42). No configurations different from those of the Taigu geneic sterility gene located at the original locus were noticed of the Ms2 intergenomically translocated back into the common wheat.

所获携带易组Ms2基因的新型太谷核不育小麦其显性雄性不育特性表达正常，且雄性不育株的雌性可育机制正常，对不育株幼穗花粉母细胞减数分裂期染色体构型的观察可见其为整倍体(2n=42)，尚未发现回归普通小麦的易组太谷核不育基因与原位点的太谷核不育基因有不同的表型。

This study provides genetic evidence that SUN1-telomere interaction is essential for telomere dynamic movement and is required for efficient homologous chromosome pairing/synapsis during mammalian gametogenesis.

我们的研究首次从遗传学上证明了SUN1蛋白和端粒的相互作用对于端粒在动物生殖细胞减数分裂中的动态变化，高效的同源染色体配对、联会以及哺乳动物的配子发生是必不可少的。

The results showed that the cell wall organization during anther development failed to divide into inner-wall, middle and tapetum normally, and not to provide material, energy and information transfer for the development of pollen mother cells, resulting in the occurrence of abnormal pollen mother cells separatist period; thus which could not form a normal pollen grains which led to abortion.

结果表明，不育花药壁组织在发育过程中，没有分化形成正常的内壁、中层及绒毡层，不能为花粉母细胞的发育提供物质、能量和信息的传递，造成花粉母细胞在减数分裂期发生异常，不能形成正常的四分体，因而未能形成正常的花粉粒而导致败育。

As there were 8.69 bivalents in average occurred to be desynaptic, moreover, the most number of the desynaptic bivalents reached 12 at post diakinsis.

从品种轮回422的群体中发现一不育单株，经细胞学观察证明是发生了联会消失突变，由于该植株的花粉母细胞在减数分裂终变期晚期平均有8.69个二价体发生了联会消失，占二价体总数的72.4%，并且发生联会消失的最多二价体数目为12，根据联会消失的最多二价体数目

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。

The protein OsSPO11-1 coded with rice reductional division gene OsSPO11-1 is the protein having SEQ ID No.2 amino-acid residue of the sequence table, or, it is the protein derived from SEQ ID No.2 in which protein, SEQ ID No.2 amino acid residue sequence being proceeding substitution, deletion or addition with one or more amino acid residue, but having the same activity of SEQ ID No.2 amino acid residue sequence.

水稻减数分裂基因OsSPO11-1编码蛋白OsSPO11-1，是具有序列表中SEQ ID №：2氨基酸残基序列的蛋白质，或者是将SEQ ID №：2的氨基酸残基序列经过一个或几个氨基酸残基的取代、缺失或添加且具有与SEQ ID №：2的氨基酸残基序列相同活性的由SEQ ID №：2衍生的蛋白质。

This review is focused on the recent research progresses of related genes in the development of embryo, endosperm, and miosis, and several genes may involved in the regulation of apomitic development.

本文介绍了植物胚发育、胚乳发育、减数分裂等涉及无融合生殖过程的相关基因的研究进展，同时介绍了可能与植物无融合生殖途径调控相关的几个基因片段的研究情况。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。