[Mitochondrial DNA genetic polymorphism of Drosophila immigrans in China].
This article uses RFLP to analyze the mitochondrial DNA(mtDNA) variation in geographic populations of Drosophila immigrans from 6 regions of mainland of China. With the use of fourteen restriction endonucleases, we only discoveried a total of 11 mtDNA haplotypes among 46 isofemale lines. The mean value of I is 0.833, the mean value of J is 0.797, and the estimated Gst value is only 16.8%. We recognized that the genetic structures among the geographic populations of D. immigrans are highly uniform, and the genetic differentiation rate is low. The UPGMA analysis of nucleotide diversity of the 6 populations shows specific characteristics of mtDNA variation in population of Huayang, Qinling Mountains Regions. From the haplotypes special included in each population, the event that the population spread into the high altitute localities of Yunnan perhaps happened more recently. Referring other references, we inferred the population of D. immigrans distributed in mainland of China is more original than that in Chinese Taiwan and Japan.
Zhang
W X
WX
College of Life Sciences Peking University, Beijing.
Chen
Y
Y
Dai
Z H
ZH
D000818:Animals; D004272:DNA, Mitochondrial / Q000235:genetics*; D004330:Drosophila / Q000235:genetics*; D012150:Polymorphism, Restriction Fragment Length
D004272:DNA, Mitochondrial