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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Do TE activity and counteracting genome defenses, RNAi and methylation, shape the sex lives of smut fungi?
Plant Signal. Behav. 8:e23853 (2013)
The availability of three genomes from smut fungi differing in mating, TE load and genome defense mechanisms, allowed a comparative analyses and a discussion on evolutionary forces shaping them. A complex balance of selective forces seems at play. A bipolar mating system in Ustilago hordei promotes selfing, advantageous for successful niche occupation but favoring accumulation of repetitive DNA, including TEs. TE activity may have caused genome variations necessary for these obligate parasites under high host selection pressures. Higher TE activity is balanced by genome defenses through recombination, RNAi, methylation and RIP mutagenesis. In tetrapolar U. maydis, lacking silencing and possibly methylation mechanisms, reduced inbreeding potential favors removal of repetitive DNA, presumably by its highly-efficient recombination system.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Sporisorium; Ustilago; gene silencing; genome research; plant pathogen
ISSN (print) / ISBN
1559-2316
e-ISSN
1559-2324
Zeitschrift
Plant Signaling & Behavior
Quellenangaben
Band: 8,
Heft: 4,
Artikelnummer: e23853
Verlag
Landes Bioscience
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed