The VQ motif-containing proteins in the diploid and octoploid strawberry

The plant VQ motif-containing proteins are a recently discovered class of plant regulatory proteins interacting with WRKY transcription factors capable of modulate their activity as transcriptional regulators. The short VQ motif (FxxhVQxhTG) is the main element in the WRKY-VQ interaction, whereas a...

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Bibliographic Details
Published in:Scientific reports 2019-03, Vol.9 (1), p.4942-4942, Article 4942
Main Authors: Garrido-Gala, José, Higuera, José Javier, Muñoz-Blanco, Juan, Amil-Ruiz, Francisco, Caballero, José L
Format: Article
Language:English
Subjects:
Acetates - metabolism
Amino Acid Motifs
Amino acids
Anthracnose
Colletotrichum
Colletotrichum - pathogenicity
Cyclopentanes - metabolism
Diploidy
Disease Resistance - genetics
Fragaria - genetics
Fragaria - metabolism
Fragaria - microbiology
Fragaria ananassa
Fragaria vesca
Fruit - microbiology
Fruits
Fungi
Gene expression
Gene Expression Profiling
Gene Expression Regulation, Plant
Host-Pathogen Interactions - genetics
Oxylipins - metabolism
Pathogens
Phylogeny
Plant Growth Regulators - metabolism
Plant Proteins - metabolism
Polyploidy
Proteins
Regulatory proteins
Ripening
Salicylic acid
Salicylic Acid - metabolism
Transcription factors
Transcription Factors - metabolism
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Summary:The plant VQ motif-containing proteins are a recently discovered class of plant regulatory proteins interacting with WRKY transcription factors capable of modulate their activity as transcriptional regulators. The short VQ motif (FxxhVQxhTG) is the main element in the WRKY-VQ interaction, whereas a newly identified variable upstream amino acid motif appears to be determinant for the WRKY specificity. The VQ family has been studied in several species and seems to play important roles in a variety of biological processes, including response to biotic and abiotic stresses. Here, we present a systematic study of the VQ family in both diploid (Fragaria vesca) and octoploid (Fragaria x ananassa) strawberry species. Thus, twenty-five VQ-encoding genes were identified and twenty-three were further confirmed by gene expression analysis in different tissues and fruit ripening stages. Their expression profiles were also studied in F. ananassa fruits affected by anthracnose, caused by the ascomycete fungus Colletotrichum, a major pathogen of strawberry, and in response to the phytohormones salicylic acid and methyl-jasmonate, which are well established as central stress signals to regulate defence responses to pathogens. This comprehensive analysis sheds light for a better understanding of putative implications of members of the VQ family in the defence mechanisms against this major pathogen in strawberry.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-019-41210-4