期刊
INSECT MOLECULAR BIOLOGY
卷 11, 期 6, 页码 605-610出版社
BLACKWELL PUBLISHING LTD
DOI: 10.1046/j.1365-2583.2002.00371.x
关键词
mtDNA; control region; origin of replication; secondary structure; tandem repeats; Plecoptera
Low levels of primary sequence similarity across insect taxa have led to the suggestion of conserved structural elements in the insect mitochondrial control region. Our aim was to determine whether previously described motifs and secondary structures exist in stoneflies (Plecoptera). Several motifs and structural elements previously described in Orthoptera and Diptera were found, including a conserved 'hairpin' structure that may play a role in the initiation of mtDNA replication. The repeat region had the highest percentage similarity, lowest A-T content and highest transition to transversion ratio, suggesting a unique evolutionary pattern for the repeats. Finally, we discuss the usefulness of the control region in population genetic and evolutionary studies.
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