减数

The perivitelline space was narrow at GV stage and there were many microvillus penetrating zona pellucida between oocyte and cumulus cells.

在减数分裂启动过程中，小鼠卵母细胞内也发生相应的形态学上的变化。

After an analysis of the published papers and our elementary study, we draw the conclusion that meiosis in Porphyra has not been solved satisfactorily and further research is needed.

根据对文献资料的分析及初步研究，认为紫菜减数分裂的争论问题，还未得到满意的解决，因此仍有重新认识和深入研究的必要。

Genomic in situ hybridization was applied to study the meiosis of F1 plants from intergenetic hypbrids between radish( Raphanus sativus,2n=18,RR) and cabbage（Brassica oleracea , 2n=18, CC）.

用基因组原位杂交方法（Genomic in situ hybridization，简称GISH）研究了萝卜( Raphanus sativus，2n=18，RR)和甘蓝（Brassica oleracea ， 2n=18， CC）属间杂种F1减数分裂过程。

This invention discloses a rice reductional division gene, and its coded protein, and the application thereof.

本发明公开了一种水稻减数分裂基因及其编码蛋白与应用。

This invention discloses rice reductional division gene OsSPO11-1, and its coded protein, and application.

本发明公开了一种水稻减数分裂基因OsSPO11-1及其编码蛋白与应用。

The rice reductional division gene coded protein 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, having the activity same as the sequence of the SEQ ID No.2 amino-acid residue, in which protein, SEQ ID No.

水稻减数分裂基因编码的蛋白，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。

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。

These abnormal changes mainly occurred at two stages:(1) at meiotic prophase, almost half of Peiai 64S microsporocytes exhibited aberration, with sparse free ribosomes, underdeveloped mitochondria and many swollen endoplasmic reticula.

这些变化主要发生在两个阶段：（1）减数分裂前期，约半数的小孢子母细胞的胞质出现异常，游离核糖体稀少，并具有不发育线粒体和大量泡状内质网。

The testis index, testis volumes were same as the annual changes of testis mass. The curves of annual variation were all unimodality.2 The spermatogenetic cycle of Myospalax cansus comprises seven stages with significant features: Stage I , from February to April, the testis were at the stage of spermatogonia proliferation. In this period, testis index and the number of spermatogonia began to rise. Other spermatogenic cells had not yet formed; Stage II to III, from March to April, primary spermatocyte meiosis period. The testis index was highest in this stage, and spermatogenic cells were in spermatocyte stage, the primary spermatocyte meiosis generated to secondary spermatocyte; Stage IV, from April to May, spermatocytes continued to split, germ cells appeared in seminiferous tubules; Stage V, in May, sperm formation, spermatids of seminiferous tubules were transformed to spermatozoa, a large number of sperms existed in the lumen; Stage VI, spermatozoa emission period, from May to June, testis index were a significant drop and mature spermatozoa excluded gradually; VII, the testicular activity ceased basically from July to September, November to January of the following year, the spermatogenic activity ceased completely. Therefore, Myospalax cansus are animals of seasonal reproduction, spermatogenesis cycle is discontinuous type.

睾丸系数、体积和重量的年周期变化规律一致，变化曲线呈现单峰型。2甘肃鼢鼠雄性生殖腺的年周期活动由7个特征明显的时期构成：Ⅰ期，2～3月份，精原细胞增殖期，睾丸系数开始上升，精原细胞进行有丝分裂，其他生精细胞尚未形成；3～4月份为Ⅱ～Ⅲ期，初级精母细胞成熟分裂期，睾丸系数达到最大，生精细胞大多处于精母细胞阶段，初级精母细胞减数分裂生成次级精母细胞；Ⅳ期，4～5月份精母细胞继续进行分裂，精细胞在生精小管内出现；Ⅴ期，5月份，精子形成期，曲细精管中精细胞变态成精子，在管腔中存在大量的精子；Ⅵ期，精子排放期，5～6月份，睾丸系数显著下降，成熟精子从生精小管上脱离，逐渐排除；Ⅶ期，精原细胞停滞期，7～9月份睾丸生精活动基本停滞，11～翌年1月，生精活动完全停止。

In the anthers of China CMS lines,there is normaldifferentiation of anther walls,male sterility is characterizedby the abortion of sporogenous cells and microsporemother cells.

我国棉花细胞质雄性不育的败育时期主要集中在造孢细胞增殖时期和花粉母细胞减数分裂时期。

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。