ArticleJournal of molecular evolution2008
Envelope-like retrotransposons in the plant kingdom: evidence of their presence in gymnosperms (Pinus pinaster).
Article in Journal of molecular evolution, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 19 citations in OpenAlex.
- Retand LTR-retrotransposons in plants: a long way from pol to 3'LTR.Mobile DNA · 2025Article
- Comparative Study of Pine Reference Genomes Reveals Transposable Element Interconnected Gene Networks.Genes · 2020Article
- Genome-wide Annotation and Comparative Analysis of Long Terminal Repeat Retrotransposons between Pear Species of P. bretschneideri and P. Communis.Scientific reports · 2015Article
- Grande retrotransposons contain an accessory gene in the unusually long 3'-internal region that encodes a nuclear protein transcribed from its own promoter.Plant molecular biology · 2013Article
- Transposable elements: powerful contributors to angiosperm evolution and diversity.Genome biology and evolution · 2013Article
- BEL/Pao retrotransposons in metazoan genomes.BMC evolutionary biology · 2011Article
- The Ty1-copia families SALIRE and Cotzilla populating the Beta vulgaris genome show remarkable differences in abundance, chromosomal distribution, and age.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2010Article
- Presence of env-like sequences in Quercus suber retrotransposons.Journal of applied genetics · 2010Article
- Network dynamics of eukaryotic LTR retroelements beyond phylogenetic trees.Biology direct · 2009Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Retroviruses differ from retrotransposons due to their infective capacity, which depends critically on the encoded envelope. Some plant retroelements contain domains reminiscent of the env of animal retroviruses but the number of such elements described to date is restricted to angiosperms. We show here the first evidence of the presence of putative env-like gene sequences in a gymnosperm species, Pinus pinaster (maritime pine). Using a degenerate primer approach for conserved domains of RNaseH gene, three clones from putative envelope-like retrotransposons (PpRT2, PpRT3, and PpRT4) were identified. The env-like sequences of P. pinaster clones are predicted to encode proteins with transmembrane domains. These sequences showed identity scores of up to 30% with env-like sequences belonging to different organisms. A phylogenetic analysis based on protein alignment of deduced aminoacid sequences revealed that these clones clustered with env-containing plant retrotransposons, as well as with retrotransposons from invertebrate organisms. The differences found among the sequences of maritime pine clones isolated here suggest the existence of different putative classes of env-like retroelements. The identification for the first time of env-like genes in a gymnosperm species may support the ancestrality of retroviruses among plants shedding light on their role in plant evolution.
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