THE DISTRIBUTION OF P ELEMENTS IN D. melanogaster ALONG THE COAST OF CHINA STUDIED BY DNA HYBRIDIZAT

• 作 者: 来芳 赵寿元 蒋志凌 刘祖洞 孙晋武
• 机 构: Institute of Genetics, Fudan University, Shanghairrrrrrrrn,Institute of Genetics, Fudan Uni
• 出 处: Science in China,Ser.B
• 发表日期: 1988年05期
• 关键词: populations DNA carry mating itself deletion eastern designated phenotype enzyme

The distribution of the P-M system in four local Drosophila melanogaster populations obtained insouthern China has been examined by mating tests. There was no P strain. A HindⅢfragnment ofthe P element has been cloned, named as pPH 0.86, and used as probe in this study. The distribu-tion of the P element itself in thirteen local D. melanogaster populations along the eastern coast ofChina has been studied by the method of DNA hybridization. It is found that all the populations ob-tained from the north of Shanghai carry P elements but few populations from the south of Shanghai carry Pelements. In comparison with the mating test, the method of DNA hybridization is more direct andreliable.The origin and trends of distribution of P elements in China are discussed in this paper.

There was no P strain. A HindⅢ fragment of the P element has been cloned, named as pPH 0.86, and used as a probe in this study. The distribu- tion of the P element itself in thirteen local D. melanogaster populations along the eastern coast of China has been studied by the method of DNA hybridization. It is found that all the populations ob-tained from the north of Shanghai carry P elements but few populations from the south of Shanghai carry Pelements. In comparison with mating test, the method of DNA hybridization is more direct andreliable. The origin and trends of distribution of P elements in China are discussed in this paper.