遗传学与人才培养的关系

以遗传学中实验对象的选择作为线索，勾绘出遗传学发展的来龙去脉，并从中探索生物学中实验的特点及与人才培养的关系。本文通过揭示遗传学家的成功之路表明在生物学的人才培养问题上必须既注意专业基础知识的熏陶，更应重视由于生物学与物理学的联盟，从而对生物学人才提出更高要求，同时使年轻的科研人员有更多的机会置身于科研第一线，是加速人才培养的重要捷径。     

肝片吸虫和巨片吸虫染色体和同工酶的研究

本文研究了来自国内数省份的片形吸虫的染色体和同工酶,发现肝片吸虫的染色体为三倍体型,巨片吸虫的染色体为二倍体型。根据二者核型相近、酯酶同工酶一致以及生活史各期虫体形态相似,作者认为肝片吸虫是巨片吸虫的同源三倍体的种类。     

用于果蝇唾腺染色体实验材料的培养方法

果蝇唾腺染色体观察是遗传学实验教学中的一个主要项目，培养适宜的果蝇用于其染色体观察对实验成败十分关键。文章从培养基的组成与制备，培养条件与培养过程，培养的果蝇唾腺染色体的特点等方面，对用于唾腺染色体观察的果蝇的培养作了详细介绍，以期促进果蝇唾腺染色体观察的实验教学。     

Cichlid familial intrarelationships and the placement of the neotropical genus Cichla (Perciformes,Labroidei)

The current status of our understanding of cichlid intrafamilial relationships is investigated and novel data are presented resolving a basal trichotomy of the African and Neotropical radiations (Oliver, 1985). The claim that the African Cichlidae is non-monophyletic is supported and the little known Zairean genus Heterochromis is identified as the sistergroup of all other African and Neotropical Cichlidae combined. Throughout the study emphasis has been placed upon the resolution of the precise phylogenetic relationships of the enigmatic Neotropical genus, Cichla; a taxon whose placement has been thought critical for successful intra-familial analyses. Analysis of the evidence currently available argues strongly in favour of a close phylogenetic relationship between Cichla and the sisterpair, Crenicichla and Teleocichla. Given this phylogenetic scheme one of the most interesting aspects to arise is the striking morphological parallels between Cichla and many of its distantly related percoid relatives.     

东北鼢鼠血清蛋白质成分与染色体组型的研究

用醋酸纤维薄膜电泳法分离东北鼢鼠血清蛋白质 ,用常规空气干燥法分析东北鼢鼠染色体组型 ,结果表明 :东北鼢鼠血清中含 7种蛋白质 ,分别是清蛋白1 、清蛋白2 、α1 —球蛋白、α2 —球蛋白、β1 —球蛋白 ,β2 —球蛋白、β3—球蛋白 .清、球蛋白比为 :1 44∶1 .东北鼢鼠染色体组型为 2N =62     

Chromosome 17-linked dementias

Chromosome 17-linked dementias have been defined by linkage analysis. The most common of these syndromes has been estimated to be the cause of between 2 and 20% of all dementia and has alternately been called frontotemporal dementia, Pick's disease (without Pick bodies) and dementia lacking distinctive features [1 – 3]. The identification of the mutation responsible for these conditions in a group of clinically and pathologically heterogeneous disorders may allow us to gain broad insight into the processes of neurodegeneration.     

中甸鸢尾的核型分析

首次报道中旬鸢尾的染色体数目和核型分析。结果如下：中甸鸢尾核型公式为K(2n)=28=20m 4sm 4st。     

树(鼠句)(Tupaia belangeri chinensis)消化器官和性腺LDH同工酶的电泳分析

采用0.5%琼脂糖凝胶电泳方法对云南树鼩的肝脏、胃、小肠、胰腺、睾丸和卵巢组织的乳酸脱氢酶同工酶进行电泳分析.结果表明,在6种不同组中,乳酸脱氢酶均呈现为5种不同分子形式的同工酶.其LDH_4至LDH_1同工酶随电泳迁移率的增大依次趋于阳极端,LDH_5同工酶则趋于阴极端.按分光光度比色定量法对各同工酶组分进行洗脱定量,分别测得6种组织中5种同工酶组分的相对百分含量.通过酶谱分析,提示在6种不同组织中由于A、B两种基因表达活性的差异,其酶谱特征也各不相同.文中对树鼩6种组织的LDH同工酶的H和M亚基百分率及H/M亚基比率进行了统计分析,提示这与各类组织的生物学功能及代谢类型相关.     

玉米（Zea mays L．）盐逆境胁迫蛋白基因nac1的染色体原位杂交物理定位

报道了玉米低拷贝盐逆境胁迫蛋白基因ｎａｃ１生物素标记的染色体原位杂交结果．供试探针为这个基因的ｃＤＮＡ克隆,其长度仅为５５０ｂｐ．采用酶联免疫级联放大和ＤＡＢ检测系统检测,实验结果表明,杂交信号分布在第２染色体短臂和第１０染色体长臂,与着丝粒的百分距离分别为６７．５６±３．２９１和８０．９２±２．４１１,检出率分别为５．８１％和１０．３２％．并对植物单和低拷贝基因的染色体原位杂交技术与基因染色体原位杂交作图进行了讨论