title: Evolution of full-length and deleted forms of the mariner-like element, Botmar1, in the Genome of the bumble bee, Bombus terrestris (Hymenoptera: Apidae).
abstract: Mariner-like elements (MLE) are Class II transposable elements that are very widespread among eukaryotic genomes. One MLE belonging to the mauritiana subfamily, named Botmar1, has been identified in the genome of the bumble bee, Bombus terrestris. gDNA hybridization with the Botmar1 transposase ORF revealed that about 230 elements are present in each haploid genome of B. terrestris that consist entirely of 1.3- and 0.85-kbp elements. The analysis of their sequences revealed that there are two Botmar1 subfamilies of similar ages in the Bombus terrestris genome: one is composed entirely of 1.3-kpb elements, whereas the second comprises both completed and deleted elements. Our previous data indicated that the internally deleted form, which correspond to the 0.85-kbp Botmar1-related elements occur in other distantly related hymenopteran genomes. Because the presence of similar 1.3- and 0.85-kbp Botmar1-related elements in some distantly related hymenopteran species cannot be explained by horizontal transfers, the nucleic acid sequence properties of these elements were further investigated. We found that certain structural properties in their nucleic acid sequence might explain the occurrence of 0.85-kbp Botmar1-related elements presenting similarly located internal deletions in hymenopteran genomes.
authors.affiliation: Laboratoire d'Etude des Parasites Génétiques, Université François Rabelais, UFR des Sciences et Techniques, Bâtiment L, Parc de Grandmont, 37200 Tours, France.
authors.forename: Florence
authors.initials: F
authors.lastname: Rouleux-Bonnin
authors.forename: Agnès
authors.initials: A
authors.lastname: Petit
authors.forename: Marie-Véronique
authors.initials: MV
authors.lastname: Demattei
authors.forename: Yves
authors.initials: Y
authors.lastname: Bigot
mesh_terms: D020816:Amino Acid Motifs; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001516:Bees; D015139:Blotting, Southern; D003001:Cloning, Molecular; D018899:CpG Islands; D004247:DNA / Q000235:genetics / Q000378:metabolism; D004251:DNA Transposable Elements / Q000235:genetics*; D004268:DNA-Binding Proteins / Q000235:genetics*; D019143:Evolution, Molecular; D017353:Gene Deletion; D016678:Genome; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D009693:Nucleic Acid Hybridization; D016366:Open Reading Frames; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D017510:Protein Folding; D017422:Sequence Analysis, DNA; D019895:Transposases; D014863:Wasps
chemical_list: D004251:DNA Transposable Elements; D004268:DNA-Binding Proteins; C111652:mariner transposases; D004247:DNA; D019895:Transposases