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Contrasting evolutionary trajectories of multiple retrotransposons following independent allopolyploidy in wild wheats.
. 2014 May; 202(3):975-85.

Abstract

Transposable elements (TEs) are expectedly central to genome evolution. To assess the impact of TEs in driving genome turnover, we used allopolyploid genomes, showing considerable deviation from the predicted additivity of their diploid progenitors and thus having undergone major restructuring. Genome survey sequencing was used to select 17 putatively active families of long terminal repeat retrotransposons. Genome-wide TE insertions were genotyped with sequence-specific amplified polymorphism (SSAP) in diploid progenitors and their derived polyploids, and compared with changes in random sequences to assess restructuring of four independent Aegilops allotetraploid genomes. Generally, TEs with different evolutionary trajectories from those of random sequences were identified. Thus, TEs presented family-specific and species-specific dynamics following polyploidy, as illustrated by Sabine showing proliferation in particular polyploids, but massive elimination in others. Contrasting with that, only a few families (BARE1 and Romani) showed proliferation in all polyploids. Overall, TE divergence between progenitors was strongly correlated with the degree of restructuring in polyploid TE fractions. TE families present evolutionary trajectories that are decoupled from genome-wide changes after allopolyploidy and have a pervasive impact on their restructuring.

Authors+Show Affiliations

Laboratory of Evolutionary Botany, Institute of Biology, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

24548250

Citation

Senerchia, Natacha, et al. "Contrasting Evolutionary Trajectories of Multiple Retrotransposons Following Independent Allopolyploidy in Wild Wheats." The New Phytologist, vol. 202, no. 3, 2014, pp. 975-85.
Senerchia N, Felber F, Parisod C. Contrasting evolutionary trajectories of multiple retrotransposons following independent allopolyploidy in wild wheats. New Phytol. 2014;202(3):975-85.
Senerchia, N., Felber, F., & Parisod, C. (2014). Contrasting evolutionary trajectories of multiple retrotransposons following independent allopolyploidy in wild wheats. The New Phytologist, 202(3), 975-85. https://doi.org/10.1111/nph.12731
Senerchia N, Felber F, Parisod C. Contrasting Evolutionary Trajectories of Multiple Retrotransposons Following Independent Allopolyploidy in Wild Wheats. New Phytol. 2014;202(3):975-85. PubMed PMID: 24548250.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Contrasting evolutionary trajectories of multiple retrotransposons following independent allopolyploidy in wild wheats. AU - Senerchia,Natacha, AU - Felber,François, AU - Parisod,Christian, Y1 - 2014/02/18/ PY - 2013/12/03/received PY - 2014/01/09/accepted PY - 2014/2/20/entrez PY - 2014/2/20/pubmed PY - 2014/12/15/medline KW - Aegilops KW - genome evolution KW - genome shock KW - pivotal-differential genome evolution KW - sequence-specific amplified polymorphism (SSAP) KW - transposable elements (TEs) SP - 975 EP - 85 JF - The New phytologist JO - New Phytol. VL - 202 IS - 3 N2 - Transposable elements (TEs) are expectedly central to genome evolution. To assess the impact of TEs in driving genome turnover, we used allopolyploid genomes, showing considerable deviation from the predicted additivity of their diploid progenitors and thus having undergone major restructuring. Genome survey sequencing was used to select 17 putatively active families of long terminal repeat retrotransposons. Genome-wide TE insertions were genotyped with sequence-specific amplified polymorphism (SSAP) in diploid progenitors and their derived polyploids, and compared with changes in random sequences to assess restructuring of four independent Aegilops allotetraploid genomes. Generally, TEs with different evolutionary trajectories from those of random sequences were identified. Thus, TEs presented family-specific and species-specific dynamics following polyploidy, as illustrated by Sabine showing proliferation in particular polyploids, but massive elimination in others. Contrasting with that, only a few families (BARE1 and Romani) showed proliferation in all polyploids. Overall, TE divergence between progenitors was strongly correlated with the degree of restructuring in polyploid TE fractions. TE families present evolutionary trajectories that are decoupled from genome-wide changes after allopolyploidy and have a pervasive impact on their restructuring. SN - 1469-8137 UR - https://www.unboundmedicine.com/medline/citation/24548250/Contrasting_evolutionary_trajectories_of_multiple_retrotransposons_following_independent_allopolyploidy_in_wild_wheats_ DB - PRIME DP - Unbound Medicine ER -