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The DIRS1 group of retrotransposons.
The identification of several new DIRS1-like retrotransposons, including elements from nematodes, sea urchins, fish, and amphibia are reported, and evidence for the existence of DIRs1- like sequences in the human genome is presented.
Comparative genomics of the fungal pathogens Candida dubliniensis and Candida albicans.
The results suggest that the recent evolutionary histories of C. albicans and C. dubliniensis are quite different, with the former having lost genomic capacity and key pathogenic functions, and the latter being a significantly less virulent and less versatile pathogen.
The distribution and evolutionary history of the PRP8 intein
It is suggested that eukaryote inteins undergo horizontal transfer and it is possible that horizontal transfer has occurred between the euascomycetes and members of the basidiomycete genus Cryptococcus.
A new group of tyrosine recombinase-encoding retrotransposons.
The Ngaro and DIRS groups of YR retrotransposons contain elements with an astonishing diversity in structures, with variations in the nature of the associated repeat sequences and in the arrangement and complement of coding regions.
Multiple LTR-retrotransposon families in the asexual yeast Candida albicans.
A region rich in retrotransposon fragments, that lies adjacent to many of the CARE-2/Rel-2 sub-telomeric repeats, and which appears to have arisen through multiple rounds of duplication and recombination, is described.
The diversity of retrotransposons in the yeast Cryptococcus neoformans
An analysis of the retrotransposons in the medically important basidiomycetous fungus Cryptococcus neoformans suggests that elimination of Retrotransposon families is faster in C. neoforman than in Candida albicans, but perhaps not as rapid as in S. cerevisiae or Sz.
Vertebrate helentrons and other novel Helitrons.
Vertebrate LTR Retrotransposons of the Tf1/Sushi Group
- M. Butler, T. Goodwin, Matthew A. Simpson, Monica Singh, R. Poulter
- BiologyJournal of Molecular Evolution
- 1 March 2001
Evidence is presented that in mammals these elements are still transcriptionally active and are represented as proteins, suggesting that members of the Tf1/sushi group are present as functional elements (or incorporated as partial elements into host genes) in diverse vertebrate lineages.
The nuclear-encoded inteins of fungi.
DIRS-1 and the other tyrosine recombinase retrotransposons
The complete set of YR retrotransposons can be divided into two major groups, the DIRS elements and the Ngaro elements, the two groups forming distinct clades on phylogenetic trees based on alignments of RT/RH and recombinase sequences, and also having some structural distinctions.