Repbase Reports
2014, Volume 14, Issue 2
February 28, 2014
Copyright © 2001-2024 - Genetic Information Research Institute, California
ISSN# 1534-830X
Page 502

SART-1_LHu

SART-type non-LTR retrotransposon.

Submitted:
11-Jan-2013 		Accepted:
11-JAN-2013
Key Words:
R1; Non-LTR Retrotransposon; Transposable Element; SART-1_LHu
Source:
Linepithema humile 		Organism:
Linepithema humile 		Taxonomy:
Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota; Neoptera; Holometabola; Hymenoptera; Apocrita; Aculeata; Vespoidea; Formicidae; Dolichoderinae; Linepithema
[] 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(2), 502-502 (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. It is followed by G(TTAGG)n. 5' terminus is uncertain. This sequence is the longest copy available from the genome sequences, and many sequences more than 80% identical to this copy are followed by telomeric repeats. ADOQ01017411.
Derived:
[2] (Consensus)
Download Sequence - Format:
IG, EMBL, FASTA
References:
  1. Smith,C.D., Zimin,A., Holt,C., Abouheif,E., Benton,R., Cash,E., Croset,V., Currie,C.R., Elhaik,E., Elsik,C.G. et al.
    Draft genome of the globally widespread and invasive Argentine ant (Linepithema humile).
    Proc Natl Acad Sci U S A 108(14), 5673-5678 (2011)

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