论文部分内容阅读
早在1968年Caspersson首先用荧光染料奎吖因芥2HCl(Quinacrine mustard 2HCl)对老鼠和人身上的细胞进行处理,发现在染色体上可以清楚地显出很多荧光带,把这个带叫做Q带。不久(1970)Parclue和Gall发现用Giemsa染料显带更明显。直到1972年法国人Vosa和Marchi才把这项技术应用在植物上。近年来我国先后报导了张自立的蚕豆,洋葱,姚珍的黑麦,以及谷明光的玉米等的Giemsa染色体显带的技术研究。 染色体是遗传密码的载体,使其分带是借助于酶、碱、酸、盐、温度等各种处理,再用染料染色,使其不同部位显出深浅不同的条纹,以此可更深入地研究染色体的结构
As early as 1968, Caspersson first processed the mouse and human cells with the fluorescent Quinacrine mustard 2HC1 and found that many fluorescent bands were clearly visible on chromosomes, calling this band the Q band. Not long after (1970) Parclue and Gall found that Giemsa dyes were more pronounced. It was not until 1972 that French Vosa and Marchi applied this technology to plants. In recent years, China has reported Zhang Zili’s faba bean, onions, Yaozhen rye, and Gu Mingguang corn and other Giemsa chromosome banding technology research. Chromosomes are carriers of the genetic code. Their zoning is accomplished by means of enzymes, alkalis, acids, salts, temperatures and other treatments. They are then dyed with dyes to show different shades of darkness in different parts, Study the structure of chromosomes