Molecular Biology and Evolution 19:1385-1389 (2002)
© 2002 Society for Molecular Biology and Evolution
Significant Levels of Sequence Divergence and Gene Rearrangements have Occurred Between the Mitochondrial Genomes of the Wild Mulberry Silkmoth, Bombyx mandarina, and its Close Relative, the Domesticated Silkmoth, Bombyx mori



*Insect Genetics and Evolution Department, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan;
Department of Applied Biology, Faculty of Textile Science, Kyoto Institute of Technology, Kyoto, Japan;
Division of Silkworm, Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| The first 150 words of the full text of this article appear below. |
The metazoan mitochondrial (mt) genome is typically a circular, double-stranded DNA molecule between 14 and 18 kb in size. This molecule encodes 37 genes: 13 protein genes, 2 ribosomal RNA genes, and 22 tRNA genes (Wolstenholme 1992
). The order of these genes varies among metazoans (Boore 1999
).
The mt genomes of 14 insects have been completely sequenced. These include (1) seven flies (Diptera), Drosophila yakuba (Clary and Wolstenholme 1985
X03240), D. melanogaster (Lewis, Farr, and Kaguni 1995
U37541), D. mauritiana, D. sechellia, D. simulans (Ballard 2000
AF200830 and AF200831 for D. mauritiana, AF200832 for D. sechellia, and AF200834, AF200841, and AF200852 for D. simulans), Ceratitis capitata (Spanos et al. 2000
AJ242872), and Cochliomyia himinivorax (Lessinger et al. 2000
AF260826); (2) two mosquitoes (Diptera), Anopheles quadrimaculatus (Mitchell, Cockburn, and Seawright 1993
L04272) and A. gambiae (Beard, Hamm, and Collins 1993
L20934); (3) the domesticated
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