细胞遗传学

Cytogenetical comparison was made between high seed set restorers TP-4 and D minghui63 and eminent maintainer line D46B of autotetraploid rice.

以高结实率的同源四倍体水稻恢复系TP-4和D明恢63及优良保持系D46B为材料进行细胞遗传学研究。

Myelodysplastic syndromes ; Leukemia ; myeloid ; subacute ; Cytogenetical

骨髓增生异常综合征；白血病；髓性；亚急性；细胞遗传学

DESIGN AND METHODS: To clarify the clinicopathological characteristics of this malignancy, we analyzed 27 cases of cytogenetically proven dual-hit lymphoma/leukemia.

设计和方法：为了弄清楚这种恶性肿瘤的临床病理特征，我们分析了27例细胞遗传学证明有双重打击的淋巴瘤/白血病。

Altogether 60 cases of CML were studied from August 1993.They were hematologically typical and cytogenetically ph1+.

从1993年8月起一共研究了60名 CML 患者，他们为血液学典型病例，细胞遗传学 PH1+。

However, alkylating agents, such as cyclophosphamide, and the topoisomerase II inhibitors, doxorubicin and epirubicin, are associated with two types of cytogenetically distinct leukemias after adjuvant chemotherapy.

然而，烷化剂如环磷酰胺、拓扑异构酶II抑制剂、阿霉素、表阿霉素都与辅助化疗后的两种细胞遗传学不同的白血病的发生相关。

Among the fish which were cytogenetically studied, most of them do not possess any morphologically differentiated sex chromosomes. On the other hand, karyotypic analysis, chromosome binding, synaptonemal complex observation and comparative genomic hybridization show in few fish species, that there exist sex chromosomes which differentiated at different levels and types.

在进行过细胞遗传学研究的鱼类中，绝大部分没有发现异形性染色体，然而通过核型分析、染色体显带、联会复合体观察和比较基因组杂交等方法，发现在少部分鱼类中确实存在有异形分化的性染色体，并且分化程度高低不等，性别决定方式多种多样。

A microRNAsignature in molecularly defined, high-risk, cytogenetically normal AMLis associated with the clinical outcome and with target genes encodingproteins involved in specific innate-immunity pathways.

分子学水平确定的、高风险的、细胞遗传学正常AML的微小RNA印记与AML的临床结局具有相关性，微小RNA可能是通过与编码与特定天然免疫途径相关蛋白的靶基因而起作用。

Genetic control of meiosis of rice, Oryza sativa L. II. Cytological analysis of desynaptic mutants.

起源于籼稻体细胞培养的联会消失变异的细胞遗传学研究。

To determine the true rate of aneuploidy and to elucidate the mechanism of aneuploidy,the sperms were decondensed for FISH analysis. It was found that the disomic frequencies of chromosome X was 0.208%. A new decondensation method was developed by trypsin treatment. The basic morphology of sperm was maintained.

为了解非整倍体的真实发生率及其发生机制，本文以X染色体α卫星DNA探针进一步检测出正常精子中X染色体的二体型频率为0.208％，同时，建立了一种保持精子基本形态的胰酶去凝聚的方法，为目前国内尚未开展的精子遗传物质结构的分子细胞遗传学研究，提供了新的手段。

Herbacium were isobilateral leaves, and those of G. hirsutum and C. barbadense were dorsiventral leaves. The reciprocal F〓 of cross G. arboreum×G. herbacium were also isobilateral leaves, while reciprocal F〓 cross of G. hirsutum×G. barbadense were also dorsiventral leaves. The quadrispecific hybrids F〓 were isobilateral leaves, regardless of their cytoplasms. The structures of the leaf stalks and the stems were analogous to each other among the four cultivated cotton species except their diameters varied with species.

四个栽培棉种及其种间杂种F〓的形态学和细胞遗传学观察四个栽培棉种的植株、叶片、茎杆以及花器等器官都有明显的差异；叶片、茎杆以及叶柄的横切面结构观察结果表明，两个二倍体栽培棉种的叶片横切面构造为等面叶，两个四倍体栽培棉种却均为背腹叶；F〓正反交的叶片也为等面叶，F〓正反交F〓仍为背腹叶，而它们的四元杂交种均为等面叶；四个栽培棉种的叶柄和茎的横切面结构基本一致，只是直径形状和和维管束多少的不同，四元杂种的叶柄和茎的横切面结构的差异不明显。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。