Ribosomal DNA gene and phylogenetic relationships of Diplura and lower hexapods

Yunxia Luan, Yaping Zhang, Qiaoyun Yue, Junfeng Pang, Rongdong Xie, Wenying Yin
Science in China. Series C, Life Sciences 2003, 46 (1): 67-76
The monophyly of Diplura and its phylogenetic relationship with other hexapods are important for understanding the phylogeny of Hexapoda. The complete 18SrRNAgene and partial 28SrRNA gene (D3-D5 region) from 2 dipluran species (Campodeidae and Japygidae), 2 proturan species, 3 collembolan species, and 1 locust species were sequenced. Combining related sequences in GenBank, phylogenetic trees of Hexapoda were constructed by MP method using a crustacean Artemia salina as an outgroup. The results indicated that: (i) the integrated data of 18SrDNA and 28SrDNA could provide better phylogenetic information, which well supported the monophyly of Diplura; (ii) Diplura had a close phylogenetic relationship to Protura with high bootstrap support.


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