title: A high-copy-number CACTA family transposon in temperate grasses and cereals.
abstract: A lineage of CACTA family transposons has been identified in temperate grasses and cereals, and a full-length representative of the subfamily from Lolium perenne has been sequenced. Both the size and internal organization of the L. perenne element are typical of other CACTA family elements but its high copy number and strong conservation are unexpected. Comparison with homologs in other species suggests that this lineage has adopted a distinct and novel evolutionary strategy, which has allowed it to maintain its presence in genomes over long periods of time.
authors.affiliation: Institute of Grassland and Environmental Research, Aberystwyth, Ceredigion, SY23 3EB, United Kingdom. tlangdon@hgmp.mrc.ac.uk
authors.forename: Tim
authors.initials: T
authors.lastname: Langdon
authors.forename: Glyn
authors.initials: G
authors.lastname: Jenkins
authors.forename: Robert
authors.initials: R
authors.lastname: Hasterok
authors.forename: R Neil
authors.initials: RN
authors.lastname: Jones
authors.forename: Ian P
authors.initials: IP
authors.lastname: King
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D017124:Conserved Sequence; D003433:Crosses, Genetic; D017931:DNA Primers; D004251:DNA Transposable Elements / Q000235:genetics*; D002523:Edible Grain / Q000145:classification / Q000235:genetics*; D017404:In Situ Hybridization, Fluorescence; D008969:Molecular Sequence Data; D005810:Multigene Family; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics*; D006109:Poaceae / Q000145:classification / Q000235:genetics*; D016133:Polymerase Chain Reaction / Q000379:methods; D016914:Ribonuclease H / Q000737:chemistry / Q000235:genetics; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D012689:Sequence Homology, Nucleic Acid
chemical_list: D017931:DNA Primers; D004251:DNA Transposable Elements; D010940:Plant Proteins; D016914:Ribonuclease H