Drifter, a novel, low copy hAT-like transposon in Fusarium oxysporum is activated during starvation

Autor: Ben J. C. Cornelissen, Martijn Rep, H. Charlotte van der Does
Přispěvatelé: Molecular Plant Pathology (SILS, FNWI)
Rok vydání: 2005
Předmět:
Zdroj: Fungal Genetics and Biology, 42, 546-553. Academic Press Inc.
ISSN: 1096-0937
1087-1845
DOI: 10.1016/j.fgb.2005.03.007
Popis: The facultative pathogenic fungus Fusarium oxysporum is known to harbour many different transposable and/or repetitive elements. We have identified Drifter, a novel DNA transposon of the hAT family in F. oxysporum. It was found adjoining SIX1-H, a truncated homolog of the SIX1 avirulence gene in F. oxysporum f. sp. lycopersici. Absence of a target site duplication as well as the 5' part of SIX1-H suggests that transposition of Drifter into the ancestor of SIX1-H was followed by loss of a chromosomal segment through recombination between Drifters. F. oxysporum isolates belonging to various formae speciales harbour between 0 and 5 full-length copies of Drifter and/or one or more copies with an internal deletion. Transcription of Drifter is activated during starvation for carbon or nitrogen.
Databáze: OpenAIRE