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Thaumatin-like Protein (TLP) Genes in Garlic (Allium sativum L.): Genome-Wide Identification, Characterization, and Expression in Response to Fusarium proliferatum Infection.

ABSTRACT: Plant antifungal proteins include the pathogenesis-related (PR)-5 family of fungi- and other stress-responsive thaumatin-like proteins (TLPs). However, the information on the TLPs of garlic (Allium sativum L.), which is often infected with soil Fusarium fungi, is very limited. In the present study, we identified 32 TLP homologs in the A. sativum cv. Ershuizao genome, which may function in the defense against Fusarium attack. The promoters of A. sativumTLP (AsTLP) genes contained cis-acting elements associated with hormone signaling and response to various types of stress, including those caused by fungal pathogens and their elicitors. The expression of AsTLP genes in Fusarium-resistant and -susceptible garlic cultivars was differently regulated by F. proliferatum infection. Thus, in the roots the mRNA levels of AsTLP7-9 and 21 genes were increased in resistant and decreased in susceptible A. sativum cultivars, suggesting the involvement of these genes in the garlic response to F. proliferatum attack. Our results provide insights into the role of TLPs in garlic and may be useful for breeding programs to increase the resistance of Allium crops to Fusarium infections.

SUBMITTER: Anisimova OK 

PROVIDER: S-EPMC8949454 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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<i>Thaumatin-like Protein</i> (<i>TLP</i>) Genes in Garlic (<i>Allium sativum</i> L.): Genome-Wide Identification, Characterization, and Expression in Response to <i>Fusarium proliferatum</i> Infection.

Anisimova Olga K OK   Kochieva Elena Z EZ   Shchennikova Anna V AV   Filyushin Mikhail A MA  

Plants (Basel, Switzerland) 20220311 6

Plant antifungal proteins include the pathogenesis-related (PR)-5 family of fungi- and other stress-responsive thaumatin-like proteins (TLPs). However, the information on the TLPs of garlic (<i>Allium sativum</i> L.), which is often infected with soil <i>Fusarium</i> fungi, is very limited. In the present study, we identified 32 <i>TLP</i> homologs in the <i>A. sativum</i> cv. Ershuizao genome, which may function in the defense against <i>Fusarium</i> attack. The promoters of <i>A. sativum</i><i  ...[more]

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