红白长尾鲫(观赏鱼新品种)的核型研究

来源 :天津水产 | 被引量 : 0次 | 上传用户:woxuejavalala
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
红白长尾鲫鱼是由彩鲫选育而来的。彩鲫是红鲫、鲫鱼的变种,红白长尾鲫在体色、体型、鳍、鳞被等性状上已与彩鲫有明显的变化,这种变化是否动摇其遗传基础,从而导致生物体遗传物质—染色体数量及核型的变化,本实验想通过核型研究找到两者之间的相互关系,为彩鲫的遗传育种提供理论和技术基础。鲫鱼(Carassius auratus)有:鲫(C.auratus auratus)和 Red-white long-tailed crucian carp is bred from color. The color crucian carp is a variety of red crucian carp and crucian carp. The red - white long - tailed crucian carp has obvious changes with the color crucian carp in body color, body shape, fin, scales and other traits, and whether this change has shaken its genetic basis, Genetic material - the number of chromosomes and karyotype changes, this experiment would like to find the relationship between the two by karyotyping, genetic and breeding crucian carp to provide the theoretical and technical basis. Crucian carp (Carassius auratus) are: crucian carp (C. auratus auratus) and
其他文献
和谐教育是素质教育的有效途径,更是中学语文素质教育的法宝,和谐教育把人的统一性和差异性有机地结合起来。中学语文课堂和其它各学科一样,首先要形成一种师生合作,民主和谐的课
High-efficiency white organic light-emitting devices with single emitting layer are demonstrated. N,N'-diphenyI-N,N'-bis(1,1'-biphenyl)-4,4'-dia
Caffeoyl-Coenzyme A 3-O-Methyltransferase (CCoAOMT) is a key enzyme in lignin biosynthesis pathway. Three rice CCoAOMT genes were identified and designated as O
超声导向肾盂穿刺的临床价值广州市第一人民医院B超室,广州市第一人民医院泌尿外科(510180)钟红,高钟华,余安迪我们于1988年11月至1993年6月行超声导向肾盂穿刺术24例次,结果表明,超声导向肾盂穿刺对泌尿
The Hexi Corridor is the northmost foreland basin of the Tibetan Plateau and its formation is controlled by the northern marginal fault of Tibet, Altyn Tagh Fau
Five thousand and eight hundred publicly available expressed sequence tags (ESTs) of Phytophthora sojae were electronically searched and 415 simple sequence rep
The thermal history of the Qinshui Basin has been studied by using the fission-track analysis of apatite and zircon, integrated analysis of tectonic evolution,
本文报告67例复杂性肾结石,在不阻断肾动脉肾实质切开取石,收到了满意的效果。现将切口选择、取石要点、术中肾功能保护介绍如下。 临床资料 一、一般资料:本组病例男41例,
花鱼骨 (HemibarbusmaculatesBleeker ) ,俗称吉花鱼、季骨郎等 ,属鲤科、鱼句亚科、鱼骨属 ,是长江中下游平原地区江湖中常见的鱼类 ,在天然湖泊中一般 2龄鱼可长到 2 5 0g ,个别的可长到 5 0 0 g。花鱼