伊米果蝇种组(Drosophila immigrans species group)H2a-H2b和Cyt b分子系统发育关系(简报)  

MOLECULAR PHYLOGENETIC RELATIONSHIPS OF DROSOPHILA IMMIGRANS SPECIES GROUP BASED ON H2a-H2b SPACER AND Cyt b SEQUENCES

作　　者：闫秀英[1] 曾庆韬[1] 杨勇[1] 钱远槐[1] 

机构地区：[1]湖北大学生命科学学院,武汉430062

出　　处：《分子细胞生物学报》2006年第3期277-280,共4页Journal of Molecular Cell Biology

基　　金：国家自然科学基金重点项目(39930100)

摘　　要：In order to investigate molecular phylogenetic relationships of Drosophila immigransspecies group,nucleotide sequences of H2a-H2b spacer regions and partial nucleotide sequences of Cytochrome b gene for five specieses subgroup in Drosophila immigrans species group and D.hydei which was selected as outgroup were acquired. Phylogenetic trees were reconstructed using maximum parsimony,maximum likelihood,neighbor joining and Bayesian methods based on H2a-H2b and Cyt b DNA sequences. The results indicated that Drosophila curviceps species subgroup is located at the base of molecular trees, diverged first in this group; the second clade is Drosophila quadrilineata species subgroup; the third is Drosophila hypocausta species subgroup; the fourth is Drosophila immigrans species subgroup; Drosophila nasuta species subgroup is the last diverged clade. Moreover,the phylogentic relationships of seven specieses in Drosophila nasuta subgroup was investigated.In order to investigate molecular phylogenetic relationships of Drosophila immigrans species group, nucleotide sequences of H2a-H2b spacer regions and partial nucleotide sequences of which was selected as outgroup were acquired. Phylogenetic trees were reconstructed using maximum parsimony,maximum likelihood,neighbor joining and Bayesian methods based on H2a- H2b and Cyt b DNA sequences. The results indicated that Drosophila curviceps species subgroup is located at the base of molecular trees, diverged first in this group; the second clade is Drosophila quadrilineata species s Drosophila p; the third is Drosophila hypocausta species subgroup; the fourth is clade. Moreover,the phylogentic relationships of seven specieses in Drosophila investigated. is the last diverged nasuta subgroup was

关 键 词：伊米果蝇种组 组蛋白H2a-H2b间隔区 细胞色素B 系统关系 

分 类 号：Q963[生物学—昆虫学] Q961