Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Coevolution between a Family of Parasite Virulence Effectors and a Class of LINE-1 Retrotransposons
Year:2009
Research Areas
  • Crop production
Information
Abstract
Parasites are able to evolve rapidly and overcome host defense mechanisms, but the molecular basis of this adaptation is poorly understood. Powdery mildew fungi (Erysiphales, Ascomycota) are obligate biotrophic parasites infecting nearly 10,000 plant genera. They obtain their nutrients from host plants through specialized feeding structures known as haustoria. We previously identified the AVRk1 powdery mildew-specific gene family encoding effectors that contribute to the successful establishment of haustoria. Here, we report the extensive proliferation of the AVRk1 gene family throughout the genome of B. graminis, with sequences diverging in formae speciales adapted to infect different hosts. Also, importantly, we have discovered that the effectors have coevolved with a particular family of LINE-1 retrotransposons, named TE1a. The coevolution of these two entities indicates a mutual benefit to the association, which could ultimately contribute to parasite adaptation and success. We propose that the association would benefit 1) the powdery mildew fungus, by providing a mechanism for amplifying and diversifying effectors and 2) the associated retrotransposons, by providing a basis for their maintenance through selection in the fungal genome.
International
Si
JCR
No
Title
PloS one
ISBN
1932-6203
Impact factor JCR
0
Impact info
Volume
4
10.1371/journal.pone.0007463
Journal number
0
From page
e7463
To page
e7463
Month
OCTUBRE
Ranking
Participants
  • Participante: C PEDERSEN
  • Participante: M VIGOUROUX
  • Autor: Soledad Sacristan Benayas (UPM)
  • Participante: P SKAMNIOTI
  • Participante: H THORDAL-CHRISTENSEN
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Patología Vegetal
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
  • Departamento: Biotecnología
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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