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Artykuł

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Tytuł

Leaf rust (Puccinia recondita f. sp. secalis) triggers substantial changes in rye (Secale cereale L.) at the transcriptome and metabolome levels

Autorzy

[ 1 ] Instytut Matematyki, Wydział Automatyki, Robotyki i Elektrotechniki, Politechnika Poznańska | [ P ] pracownik

Dyscyplina naukowa (Ustawa 2.0)

[7.4] Matematyka

Rok publikacji

2024

Opublikowano w

BMC Plant Biology

Rocznik: 2024 | Tom: vol. 24

Typ artykułu

artykuł naukowy

Język publikacji

angielski

Słowa kluczowe
EN
  • biotic stress
  • fungal disease
  • plant immune response
  • RNA-seq
  • differentially accumulated metabolites
Streszczenie

EN Background Rye (Secale cereale L.) is a cereal crop highly tolerant to environmental stresses, including abiotic and biotic stresses (e.g., fungal diseases). Among these fungal diseases, leaf rust (LR) is a major threat to rye produc‑ tion. Despite extensive research, the genetic basis of the rye immune response to LR remains unclear. Results An RNA-seq analysis was conducted to examine the immune response of three unrelated rye inbred lines (D33, D39, and L318) infected with compatible and incompatible Puccinia recondita f. sp. secalis (Prs) isolates. In total, 877 unique diferentially expressed genes (DEGs) were identifed at 20 and 36 h post-treatment (hpt). Most of the DEGs were up-regulated. Two lines (D39 and L318) had more up-regulated genes than down-regulated genes, whereas the opposite trend was observed for line D33. The functional classifcation of the DEGs helped identify the largest gene groups regulated by LR. Notably, these groups included several DEGs encoding cytochrome P450, receptor-like kinases, methylesterases, pathogenesis-related protein-1, xyloglucan endotransglucosylases/hydrolases, and peroxidases. The metabolomic response was highly conserved among the genotypes, with line D33 displaying the most gen‑ otype-specifc changes in secondary metabolites. The efect of pathogen compatibility on metabolomic changes was less than the efects of the time-points and genotypes. Accordingly, the secondary metabolome of rye is altered by the recognition of the pathogen rather than by a successful infection. The results of the enrichment analysis of the DEGs and diferentially accumulated metabolites (DAMs) refected the involvement of phenylpropanoid and diterpenoid biosynthesis as well as thiamine metabolism in the rye immune response. Conclusion Our work provides novel insights into the genetic and metabolic responses of rye to LR. Numerous immune response-related DEGs and DAMs were identifed, thereby clarifying the mechanisms underlying the rye response to compatible and incompatible Prs isolates during the early stages of LR development. The integration of transcriptomic and metabolomic analyses elucidated the contributions of phenylpropanoid biosynthesis and fa‑ vonoid pathways to the rye immune response to Prs. This combined analysis of omics data provides valuable insights relevant for future research conducted to enhance rye resistance to LR.

Strony (od-do)

107-1 - 107-26

DOI

10.1186/s12870-024-04726-0

URL

https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-024-04726-0

Uwagi

Article number : 107

Typ licencji

CC BY (uznanie autorstwa)

Tryb otwartego dostępu

otwarte czasopismo

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ostateczna wersja opublikowana

Czas udostępnienia publikacji w sposób otwarty

w momencie opublikowania

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Poziom dostępu do pełnego tekstu

publiczny

Punktacja Ministerstwa / czasopismo

140

Impact Factor

4,3 [Lista 2023]

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