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Vol. 37 No. 1, 1998
Phylogenetic
Relationships of the Tropiduchidae-group (Homoptera: Fulgoroidea) of
Planthoppers Inferred through Nucleotide Sequences
Wen-Bin Yeh1, Chung-Tu Yang1 and Cho-Fat Hui2,*
1Department of Entomology, Chung-Hsing University, Taichung, Taiwan 402
2Institute of Zoology, Academia Sinica, Taipei, Taiwan 115
Wen-Bin Yeh, Chung-Tu Yang and Cho-Fat Hui (1998)
Phylogenetic reconstruction of the relationships within the
Tropiduchidae-group of families of planthoppers is conducted based on
DNA sequences of 2 mitochondrial genes. The sequence comparisons of 400
bases of the 3’ end of the 16S rDNA genes from 9 taxa of 6 families and
120 codons of the 5’ end of the cytochrome b genes from 10 taxa of 6
families reveal general congruence. The phylogenetic trees based on
these 2 genes show that Flatidae and Tropiduchidae are always grouped
together; Meenoplidae and Delphacidae each is a basal lineage among
these taxa, and Issidae is a nonhomogeneous group. The ratio of
transitions over transversions of the cytochrome b gene in fulgoroids
has reached a steady-state when compared with insects of other orders.
Both genes can be candidate genes in studying the relationships of
Fulgoroidea since the sequence variations of both genes between species
of intragenus, close affinity families, and distant affinity families
are about 10%, 20%, and 30%, respectively.
Key words: Mitochondrial DNA, 16S rDNA, Cytochrome b, Fulgoroidea.
*Correspondence: Fax: 886-2-27858059
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