Divergence and Systematical Evolution of Three Leuciscus Species in Xinjiang on Mitochondrial DNA Cy

• 作 者: HuWen-Ge[1]DuanZi-Yuan[2]WangJin-Fu[3]ShengJin-Liang[3]
• 机 构: Bio-Engineering College, Shihezi University, Shihezi 832003,China
• 出 处: 2005 World DNA and Genome Day(2005中国(大连)国际DNA和基因组节大会)
• 发表日期: 2005年期

　　Using the general primers in mtDNA cyt b.of Cyprinidae fish,we examined nucleotide sequence of fish mitochondria DNA (mtDNA) cytochrome b part region from Leuciscus merzbacheri,L.leuciscus baicalensis and L.idus in Xinjiang,China,which sequencing 413 bp lengths of homological fragments in the cyt b from 15 individuals of the three fish species.The homological fragment analysis shows that the average content of A,T,C,G are respectively 27.4%,26.7%,17.2%,28.7%,and A+T content (54.1%) is higher than G+C content (45.9%).52 mutation spots are tested in 413 homological nucleotides.Transition is higher than transversion,the ratio between transition and transversion is 3.5.The evolution speed of mtDNA cyt b manifests non-identity among three Leuciscus.