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Phylogeny and transpositional activity of Ty1-copia group retrotransposons in cereal genomes.
Mol Gen Genet. 1999 Jul; 261(6):883-91.MG

Abstract

The Ty1-copia group retrotransposon populations of barley (Hordeum vulgare) and bread wheat (Triticum aestivum) have been characterised by degenerate PCR and sequence analysis of fragments of the reverse transcriptase genes. The barley population is comprised of a highly heterogeneous set of retrotransposons, together with a collection of sequences that are closely related to the BARE-1 element. Wheat also contains a highly diverse Ty1-copia retrotransposon population, together with a less prominent BARE-1 subgroup. These data have been combined with previously published Gramineae sequences to construct a composite phylogenetic tree for this class of retrotransposons in cereal grasses. The analysis indicates that the ancestral Gramineae genome contained a heterogeneous population of Ty1-copia group retrotransposons, the descendants of which have proliferated to differing degrees in present-day species. Lastly, the level of recent transpositional activity of two Ty1-copia elements has been estimated by measuring their insertional polymorphism within species. Both transposons are highly polymorphic within all species tested. These data suggest that transposition proficiency may be a common and evolutionarily stable feature of the Ty1-copia group retrotransposons of cereal grasses.

Authors+Show Affiliations

Department of Biochemistry, University of Dundee, Scotland, UK.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

10485278

Citation

Gribbon, B M., et al. "Phylogeny and Transpositional Activity of Ty1-copia Group Retrotransposons in Cereal Genomes." Molecular & General Genetics : MGG, vol. 261, no. 6, 1999, pp. 883-91.
Gribbon BM, Pearce SR, Kalendar R, et al. Phylogeny and transpositional activity of Ty1-copia group retrotransposons in cereal genomes. Mol Gen Genet. 1999;261(6):883-91.
Gribbon, B. M., Pearce, S. R., Kalendar, R., Schulman, A. H., Paulin, L., Jack, P., Kumar, A., & Flavell, A. J. (1999). Phylogeny and transpositional activity of Ty1-copia group retrotransposons in cereal genomes. Molecular & General Genetics : MGG, 261(6), 883-91.
Gribbon BM, et al. Phylogeny and Transpositional Activity of Ty1-copia Group Retrotransposons in Cereal Genomes. Mol Gen Genet. 1999;261(6):883-91. PubMed PMID: 10485278.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phylogeny and transpositional activity of Ty1-copia group retrotransposons in cereal genomes. AU - Gribbon,B M, AU - Pearce,S R, AU - Kalendar,R, AU - Schulman,A H, AU - Paulin,L, AU - Jack,P, AU - Kumar,A, AU - Flavell,A J, PY - 1999/9/15/pubmed PY - 1999/9/15/medline PY - 1999/9/15/entrez SP - 883 EP - 91 JF - Molecular & general genetics : MGG JO - Mol. Gen. Genet. VL - 261 IS - 6 N2 - The Ty1-copia group retrotransposon populations of barley (Hordeum vulgare) and bread wheat (Triticum aestivum) have been characterised by degenerate PCR and sequence analysis of fragments of the reverse transcriptase genes. The barley population is comprised of a highly heterogeneous set of retrotransposons, together with a collection of sequences that are closely related to the BARE-1 element. Wheat also contains a highly diverse Ty1-copia retrotransposon population, together with a less prominent BARE-1 subgroup. These data have been combined with previously published Gramineae sequences to construct a composite phylogenetic tree for this class of retrotransposons in cereal grasses. The analysis indicates that the ancestral Gramineae genome contained a heterogeneous population of Ty1-copia group retrotransposons, the descendants of which have proliferated to differing degrees in present-day species. Lastly, the level of recent transpositional activity of two Ty1-copia elements has been estimated by measuring their insertional polymorphism within species. Both transposons are highly polymorphic within all species tested. These data suggest that transposition proficiency may be a common and evolutionarily stable feature of the Ty1-copia group retrotransposons of cereal grasses. SN - 0026-8925 UR - https://www.unboundmedicine.com/medline/citation/10485278/Phylogeny_and_transpositional_activity_of_Ty1_copia_group_retrotransposons_in_cereal_genomes_ DB - PRIME DP - Unbound Medicine ER -