Cl. Green et M. Frommer, The genome of the Queensland fruit fly Bactrocera tryoni contains multiplerepresentatives of the mariner family of transposable elements, INSEC MOL B, 10(4), 2001, pp. 371-386
Representatives of five distinct types of transposable elements of the mari
ner family were detected in the genomes of the Queensland fruit fly Bactroc
era tryoni and its sibling species Bactrocera neohumeralis by phylogenetic
analysis of transposase gene fragments. Three mariner types were also found
in an additional tephritid, Bactrocera jarvisi. Using genomic library scre
ening and inverse PCR, full-length elements representing the mellifera subf
amily (B. tryoni.mar1) and the Irritans subfamily (B. tryoni.mar2) were iso
lated from the B. tryoni genome. Nucleotide consensus sequences for each ty
pe were derived from multiple defective copies. Predicted transposase seque
nces share approximate to 23% amino acid Identity. B. tryoni.mar1 elements
have an estimated copy number of about 900 in the B. tryoni genome, whereas
B. tryoni.mar2 element types appear to be present in low copy number.