Histological and transcriptome analysis uncover a robust early PTI and ETI-associated immune response in <i>Musa acuminata</i> subsp. <i>burmannica</i> accession 'Calcutta 4' to <i>Fusarium oxysporum</i> f. sp. <i>cubense</i> Subtropical Race 4.

ABSTRACT:

Introduction

Banana (Musa spp.) is a globally significant crop and a staple food in the diet of millions of people. However, commercial cultivars are highly susceptible to Fusarium wilt, a devastating disease caused by Fusarium oxysporum f. sp. cubense (Foc). Tropical race 4 (TR4) and Subtropical race 4 (STR4) pose significant threats to banana production, including 'Cavendish' (AAA group), with STR4 pathogenic only in subtropical regions. Genetic resistance is the most effective strategy to combat Foc, underscoring the importance of advancing understanding of resistance mechanisms.

Methods

Here, we identified and validated genes involved in the resistance response to Foc STR4 through RNA-seq and RT-qPCR analyses. Two genotypes were evaluated: 'Calcutta

SUBMITTER: Costa EC 

PROVIDER: S-EPMC12441072 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature