Fusarium wilt of banana in Cuba : Pathogen diversity and implications of a wider host range

Martínez de la Parte, Einar

doi:10.18174/638795

Cited by 2 publications

(4 citation statements)

References 209 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on their genetic diversity, Fusarium strains infecting banana have recently been separated into different species, and the lineage that encompasses TR4 strains (Fig. 1d) is now referred to as Fusarium odoratissimum 24,26,27 genetically similar, as well as the two R2 strains (green). By contrast, the R1 strains (blue squares) are polyphyletic.…”

Section: Fusarium Strains Infecting Banana Are Genetically Diversementioning

confidence: 99%

“…Fusarium strains were isolated from different banana growing regions worldwide directly from the pseudostem of symptomatic banana plants. Here, 35 Fusarium strains were newly sequenced and we included 34 publicly available whole-genome sequencing datasets (based on short-read sequencing approaches) 24,26,[56][57][58][59][60][61] . To obtain high-quality reference assemblies, seven strains were sequenced with Oxford Nanopore Technology (ONT).…”

Section: Collection Of Fusarium Strains Infecting Bananamentioning

confidence: 99%

“…Base calling was performed using Guppy (version 3.1.5; C058, C135, C081, and M1) and MiniKNOW (version 3.4.6; II5, 36102, and CR1.1). The other Fusarium strains were sequenced by Beijing Genomic Institute (BGI) using Illumina paired-end sequencing, 31 were sequenced during this study and 38 were obtained during other studies 21,24,26,56,[58][59][60][61] .…”

Section: Whole-genome Sequencingmentioning

confidence: 99%

See 2 more Smart Citations

Segmental Duplications Drive the Evolution of Accessory Regions in a Major Crop Pathogen

van Westerhoven,

Aguilera-Galvez,

Nakasato-Tagami

et al. 2023

Preprint

View full text Add to dashboard Cite

Many pathogens evolved compartmentalized genomes with conserved core and variable accessory regions which carry effector genes mediating virulence. The fungal plant pathogen Fusarium oxysporum has such accessory regions, often spanning entire chromosomes, yet understanding of their evolution in strains that infect the same host remains limited. Here, we define the pan-genome of 69 diverse Fusarium strains that cause Fusarium wilt of banana, a significant constraint to global banana production, and demonstrate that segmental duplications drive the evolution of accessory regions. Accessory regions are highly variable and encode distinct gene repertories, with evolutionarily less constrained, younger genes and in planta-induced effectors, which differ between strains infecting the same banana cultivars. We show that recent segmental duplications and aneuploidy of accessory chromosomes cause the expansion of accessory regions in some Fusarium species. Taken together we conclude that extensive recent duplications drive the evolution of accessory regions in Fusarium, which contribute to the evolution of virulence.

show abstract

Section: Fusarium Strains Infecting Banana Are Genetically Diversementioning

confidence: 99%

Section: Collection Of Fusarium Strains Infecting Bananamentioning

confidence: 99%

Section: Whole-genome Sequencingmentioning

confidence: 99%

See 1 more Smart Citation

Segmental Duplications Drive the Evolution of Accessory Regions in a Major Crop Pathogen

van Westerhoven,

Aguilera-Galvez,

Nakasato-Tagami

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…The racial structure for Foc is imperfect. For instance, in Cuba, R1 strains from Silk bananas have been reported affecting Bluggoe bananas ( Martínez de la Parte, 2023 ). Some, of these R1 and R2 strains have been recently proposed as new and different species ( Maryani et al., 2019 ).…”

Section: The Pathogensmentioning

confidence: 99%

Fusarium Tropical Race 4 in Latin America and the Caribbean: status and global research advances towards disease management

Munhoz,

Vargas,

Teixeira

et al. 2024

Front. Plant Sci.

View full text Add to dashboard Cite

Fusarium wilt of banana (FWB), caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense (Foc), poses an undeniable threat to global banana production. This disease has intensified in recent years, with the tropical race 4 (TR4) strain spreading rapidly. Since 2018, the number of affected countries has increased from 16 to 23, presenting a significant challenge to researchers, producers, and National Plant Protection Organizations (NPPOs) worldwide. The potential impact of TR4 in Latin America and the Caribbean (LAC) is particularly concerning. This region boasts seven of the top ten banana-exporting countries, and bananas and plantains are crucial for food security and income generation. In Colombia, where TR4 was detected in 2019, the disease has already spread from La Guajira to Magdalena, and it is currently affecting 20 large commercial export farms. In Peru, the disease was detected in 2021 and although still restricted to the northern region, flood irrigation and heavy rains associated with the Yaku cyclone, boosted pathogen spread, and more than 400 small organic banana farmers are currently affected. In Venezuela, TR4 detection occurred in 2023, with plantations across three states and five municipalities now affected. Worryingly, TR4 has also been confirmed in plantains, a staple food in the region. Current national responses in LAC primarily rely on preventive and reactive measures: preventing initial incursions and containing outbreaks to avoid further spread. However, the disease’s relentless progression suggests that its eventual presence in all banana-producing areas is likely. Therefore, exploring alternative management approaches beyond pathogen exclusion becomes crucial, both in affected and disease-free regions. This paper examines the current spread of TR4, focusing on epidemiological aspects and recent research-based management options. Key epidemiological features were highlighted, drawing practical examples from various scales (plots to landscapes) and utilizing experiences from LAC’s fight against TR4. The paper also reviews field-tested approaches in biosecurity, biological control, resistant varieties, soil health, and integrated disease management, acknowledging the specific challenges faced by smallholder settings. In each section research initiatives were analyzed, identifying gaps, and proposing directions to minimize TR4 impact and accelerate the development of sustainable solutions for managing this devastating disease.

show abstract

Fusarium wilt of banana in Cuba : Pathogen diversity and implications of a wider host range

Cited by 2 publications

References 209 publications

Segmental Duplications Drive the Evolution of Accessory Regions in a Major Crop Pathogen

Segmental Duplications Drive the Evolution of Accessory Regions in a Major Crop Pathogen

Fusarium Tropical Race 4 in Latin America and the Caribbean: status and global research advances towards disease management

Contact Info

Product

Resources

About