A High-Copy-Number CACTA Family Transposon in Temperate Grasses and Cereals

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 h...

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Bibliographic Details
Published in:Genetics (Austin) 2003-03, Vol.163 (3), p.1097-1108
Main Authors: Langdon, Tim, Jenkins, Glyn, Hasterok, Robert, Jones, R. Neil, King, Ian P
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Base Sequence
Cereals
Conserved Sequence
Crosses, Genetic
DNA Primers
DNA Transposable Elements - genetics
Edible Grain - classification
Edible Grain - genetics
Genes
Grasses
In Situ Hybridization, Fluorescence
Molecular Sequence Data
Multigene Family
Phylogeny
Plant Proteins - chemistry
Plant Proteins - genetics
Poaceae - classification
Poaceae - genetics
Polymerase Chain Reaction - methods
Ribonuclease H - chemistry
Ribonuclease H - genetics
Sequence Alignment
Sequence Homology, Amino Acid
Sequence Homology, Nucleic Acid
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Summary: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.
ISSN:0016-6731
1943-2631
1943-2631
DOI:10.1093/genetics/163.3.1097