Repbase Reports

2014, Volume 14, Issue 3
March 31, 2014
Copyright © 2001-2016 - Genetic Information Research Institute
ISSN# 1534-830X
Page 776

TRAS-1_HMM

Non-LTR retrotransposon family from Heliconius melpomene melpomene.

Submitted:
04-Sep-2012
Accepted:
31-Mar-2014
Key Words:
R1; Non-LTR Retrotransposon; Transposable Element; TRAS-1_HMM
Source:
Heliconius melpomene melpomene
Organism:
Heliconius melpomene melpomene
Taxonomy:
Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota; Neoptera; Endopterygota; Lepidoptera; Glossata; Ditrysia; Papilionoidea; Nymphalidae; Heliconiinae; Heliconiini; Heliconius; Heliconius melpomene
[2] Authors:
Kojima,K.K. and Jurka,J.
Title:
TRAS and SART, two telomeric repeat-specific non-LTR retrotransposon families from arthropods.
Journal:
Repbase Reports 14(3), 776-776 (2014)
Abstract:
We report two groups of telomeric repeat-specific non-LTR retrotransposon families, TRAS and SART from various arthropods. TRAS was found from the red spider mite Tetranychus urticae (TRAS-1_TUr to TRAS-8_TUr), first time outside of insects. We also report TRAS from the tobacco hornworm Manduca sexta (TRAS-1_MSe) and the Postman butterfly Heliconius melpomene (TRAS-1_HMM), both belonging to Lepidoptera. They follow (CCTAA)nC of telomeric repeats. SART was found from the Argentine ant Linepithema humile (SART-1_LH), the Carpenter ant Camponotus floridanus (SART-1_CF), the pea aphid Acyrthosiphon pisum (SART-1_APi to SART-9_APi), the human louse Pediculus humanus (SART-1_PHu), and the predatory mite Metaseiulus occidentalis (SART-1_MOc to SART-5_MOc). We also report new SART sequences from the silkworm Bombyx mori (SARTBm3), the Postman butterfly Heliconius melpomene (SART-1_HMM and SART-1B_HMM), and the red flour beetle Tribolium castaneum ( SARTTc8). SART is almost always followed by AGG(TTAGG)n; some exceptions are followed by G(TTAGG)n. Now TRAS is found from 2 insect orders (Lepidoptera and Hemiptera), and 1 arachnid order (Acari). SART is found from 5 insect orders (Lepidoptera, Coleoptera, Hymenoptera, Hemiptera, Phthiraptera) and 1 arachnid order (Acari). Many of these families are found as a single-copy sequence in the respective sequenced genomes, but considering the low coverage of telomeric regions, they are likely present as repetitive sequences. Most of single-copy sequences encode two intact proteins, likely due to rapid turnover. The strength of target specificity is different between families. Older families are more likely found outside of telomeric repeats. For example, copies of SART-1_PHu are 80-90% identical to their consensus sequence and most of them are not flanked with telomeric repeats. Partial sequence. Only three copies are found in the sequenced genome. One copy follows (CCTAA)nCC.
Derived:
[2] (Consensus)
Download Sequence - Format:
IG, EMBL, FASTA
References:
  1. The Heliconius Genome Consortium
    Butterfly genome reveals promiscuous exchange of mimicry adaptations among species.
    Nature 487(7405), 94-98 (2012)

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