Novel clades of chromodomain-containing Gypsy LTR retrotransposons from mosses (Bryophyta).
Retrotransposons are the major component of plant genomes. Chromodomain-containing Gypsy long terminal repeat (LTR) retrotransposons are widely distributed in eukaryotes. Four distinct clades of chromodomain-containing Gypsy retroelements are known from the vascular plants: Reina, CRM, Galadriel and Tekay. At the same time, almost nothing is known about the repertoire of LTR retrotransposons in bryophyte genomes. We have combined a search of chromodomain-containing Gypsy retroelements in Physcomitrella genomic sequences and an experimental investigation of diverse moss species. The computer-based mining of the chromodomain-containing LTR retrotransposons allowed us to describe four different elements from Physcomitrella. Four novel clades were identified that are evolutionarily distinct from the chromodomain-containing Gypsy LTR retrotransposons of other plants.
Novikova
Olga
O
Laboratory of Molecular Evolution, Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia. novikova@bionet.nsc.ru
Mayorov
Vladimir
V
Smyshlyaev
Georgiy
G
Fursov
Michail
M
Adkison
Linda
L
Pisarenko
Olga
O
Blinov
Alexander
A
D000595:Amino Acid Sequence; D044002:Bryophyta / Q000145:classification / Q000235:genetics*; D019295:Computational Biology; D019143:Evolution, Molecular; D017343:Genes, Plant; D018745:Genome, Plant; D008969:Molecular Sequence Data; D010802:Phylogeny; D018749:RNA, Plant / Q000235:genetics; D018626:Retroelements; D020133:Reverse Transcriptase Polymerase Chain Reaction; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D020079:Terminal Repeat Sequences
D018749:RNA, Plant; D018626:Retroelements