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

被引：22

作者：

Rep, M ^{[1
]}

van der Does, HC ^{[1
]}

Cornelissen, BJC ^{[1
]}

机构：

[1] Univ Amsterdam, Swammerdam Inst Life Sci, NL-1090 GB Amsterdam, Netherlands

来源：

FUNGAL GENETICS AND BIOLOGY | 2005年 / 42卷 / 06期

关键词：

Fusarium oxysporum; transposon; hAT family; genome dynamics; starvation;

D O I：

10.1016/j.fgb.2005.03.007

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

The facultative pathogenic fungus Fusaritan 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 variousforinae 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. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：546 / 553

页数：8