Profile of the mosaic element BTMR1 in the genome of the bumble bee Bombus terrestris (Hymenoptera: Apidae).
Co-evolution involving a mariner transposon, Botmar1 and the other repeats contained in the Bombus terrestris genome was investigated. We found that the 5'-region of Botmar1 forms one of the components of a mosaic element, known as B. terrestris mosaic repeat 1 (BTMR1), which is also composed of inner segments originating from two different retrotransposons and a pseudogene corresponding to an RNA methyltransferase cDNA. The fact that BTMR1 is interspersed within chromosomes and the differences in its abundance in different species indicate that it is very probably a mobile element. Nevertheless, the absences of direct or inverted repeats at its ends and of target site duplication indicate that its mobility is not ensured by a cardinal transposable element, but putatively by a Crypton-like element.
UMR CNRS 6239, UFR des Sciences et Techniques, Tours, France.
S
S
Casteret
N
N
Moiré
P
P
Aupinel
J-N
JN
Tasei
Y
Y
Bigot
D000818:Animals; D001483:Base Sequence; D001516:Bees / Q000235:genetics*; D004251:DNA Transposable Elements; D018076:DNA, Complementary / Q000235:genetics; D019143:Evolution, Molecular; D049750:Genome, Insect; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D011544:Pseudogenes; D018626:Retroelements; D017422:Sequence Analysis, DNA
D004251:DNA Transposable Elements; D018076:DNA, Complementary; D018626:Retroelements