A Nest of LTR Retrotransposons Adjacent the Disease Resistance-Priming Gene NPR1 in Beta vulgaris L. U.S. Hybrid H20
Joint Authors
Kuykendall, L. David
Trimmer, Kenneth
Shao, Jonathan Y.
Source
International Journal of Plant Genomics
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-04-15
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
A nest of long terminal repeat (LTR) retrotransposons (RTRs), discovered by LTR_STRUC analysis, is near core genes encoding the NPR1 disease resistance-activating factor and a heat-shock-factor-(HSF-) like protein in sugarbeet hybrid US H20.
SCHULTE, a 10 833 bp LTR retrotransposon, with 1372 bp LTRs that are 0.7% divergent, has two ORFs with unexpected introns but encoding a reverse transcriptase with rve and Rvt2 domains similar to Ty1/copia-type retrotransposons and a hypothetical protein.
SCHULTE produced significant nucleotide BLAST alignments with repeat DNA elements from all four families of plants represented in the TIGR plant repeat database (PRD); the best nucleotide sequence alignment was to ToRTL1 in Lycopersicon esculentum.
A second sugarbeet LTR retrotransposon, SCHMIDT, 11 565 bp in length, has 2561 bp LTRs that share 100% identity with each other and share 98-99% nucleotide sequence identity over 10% of their length with DRVs, a family of highly repetitive, relatively small DNA sequences that are widely dispersed over the sugarbeet genome.
SCHMIDT encodes a complete gypsy-like polyprotein in a single ORF.
Analysis using LTR_STRUC of an in silico deletion of both of the above two LTR retrotransposons found that SCHULTE and SCHMIDT had inserted within an older LTR retrotransposon, resulting in a nest that is only about 10 Kb upstream of NPR1 in sugarbeet hybrid US H20.
American Psychological Association (APA)
Kuykendall, L. David& Shao, Jonathan Y.& Trimmer, Kenneth. 2009. A Nest of LTR Retrotransposons Adjacent the Disease Resistance-Priming Gene NPR1 in Beta vulgaris L. U.S. Hybrid H20. International Journal of Plant Genomics،Vol. 2009, no. 2009, pp.1-8.
https://search.emarefa.net/detail/BIM-482141
Modern Language Association (MLA)
Kuykendall, L. David…[et al.]. A Nest of LTR Retrotransposons Adjacent the Disease Resistance-Priming Gene NPR1 in Beta vulgaris L. U.S. Hybrid H20. International Journal of Plant Genomics No. 2009 (2009), pp.1-8.
https://search.emarefa.net/detail/BIM-482141
American Medical Association (AMA)
Kuykendall, L. David& Shao, Jonathan Y.& Trimmer, Kenneth. A Nest of LTR Retrotransposons Adjacent the Disease Resistance-Priming Gene NPR1 in Beta vulgaris L. U.S. Hybrid H20. International Journal of Plant Genomics. 2009. Vol. 2009, no. 2009, pp.1-8.
https://search.emarefa.net/detail/BIM-482141
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482141