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Harting, Rebekka; Starke, Jessica; Kusch, Harald; Pöggeler, Stefanie; Maurus, Isabel; Schlüter, Rabea; Landesfeind, Manuel; Bulla, Ingo; Nowrousian, Minou; de Jonge, Ronnie; Stahlhut, Gertrud; Hoff, Katharina J.; Aßhauer, Kathrin P.; Thürmer, Andrea; Stanke, Mario; Daniel, Rolf; Morgenstern, Burkhard; Thomma, Bart P. H. J.; Kronstad, James W.; Braus‐Stromeyer, Susanna A.; Braus, Gerhard H.

A 20‐kb lineage‐specific genomic region tames virulence in pathogenic amphidiploid Verticillium longisporum

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  • Medientyp: E-Artikel
  • Titel: A 20‐kb lineage‐specific genomic region tames virulence in pathogenic amphidiploid Verticillium longisporum
  • Beteiligte: Harting, Rebekka; Starke, Jessica; Kusch, Harald; Pöggeler, Stefanie; Maurus, Isabel; Schlüter, Rabea; Landesfeind, Manuel; Bulla, Ingo; Nowrousian, Minou; de Jonge, Ronnie; Stahlhut, Gertrud; Hoff, Katharina J.; Aßhauer, Kathrin P.; Thürmer, Andrea; Stanke, Mario; Daniel, Rolf; Morgenstern, Burkhard; Thomma, Bart P. H. J.; Kronstad, James W.; Braus‐Stromeyer, Susanna A.; Braus, Gerhard H.
  • Erschienen: Wiley, 2021
  • Erschienen in: Molecular Plant Pathology
  • Sprache: Englisch
  • DOI: 10.1111/mpp.13071
  • ISSN: 1464-6722; 1364-3703
  • Entstehung:
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  • Beschreibung: <jats:title>Abstract</jats:title><jats:p>Amphidiploid fungal <jats:italic>Verticillium longisporum</jats:italic> strains Vl43 and Vl32 colonize the plant host <jats:italic>Brassica</jats:italic> <jats:italic>napus</jats:italic> but differ in their ability to cause disease symptoms. These strains represent two <jats:italic>V</jats:italic>. <jats:italic>longisporum</jats:italic> lineages derived from different hybridization events of haploid parental <jats:italic>Verticillium</jats:italic> strains. Vl32 and Vl43 carry same‐sex mating‐type genes derived from both parental lineages. Vl32 and Vl43 similarly colonize and penetrate plant roots, but asymptomatic Vl32 proliferation in planta is lower than virulent Vl43. The highly conserved Vl43 and Vl32 genomes include less than 1% unique genes, and the karyotypes of 15 or 16 chromosomes display changed genetic synteny due to substantial genomic reshuffling. A 20 kb Vl43 lineage‐specific (LS) region apparently originating from the <jats:italic>Verticillium</jats:italic> <jats:italic>dahliae</jats:italic>‐related ancestor is specific for symptomatic Vl43 and encodes seven genes, including two putative transcription factors. Either partial or complete deletion of this LS region in Vl43 did not reduce virulence but led to induction of even more severe disease symptoms in rapeseed. This suggests that the LS insertion in the genome of symptomatic <jats:italic>V</jats:italic>. <jats:italic>longisporum</jats:italic> Vl43 mediates virulence‐reducing functions, limits damage on the host plant, and therefore tames Vl43 from being even more virulent.</jats:p>
  • Zugangsstatus: Freier Zugang