Molecular Identification and Diversity of Fusarium spp. Associated With Sugarcane in Brazil
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Le résumé fourni par la source
ABSTRACT The genus Fusarium causes several diseases in grasses such as sugarcane and is characterised by high genetic variability and adaptability. Despite being the world's largest producer of sugarcane, Brazil still lacks information on Fusarium species diversity in its major producing regions. The species identity of 56 Brazilian Fusarium isolates recovered from Brazilian sugarcane was determined using DNA sequences of fragments of the partial TEF‐1α and RPB2 genes, and their population genetic structure was assessed by amplified fragment length polymorphism (AFLP) analysis. The DNA polymorphism of partial TEF ‐ 1α gene sequences of Brazilian F. sacchari isolates was additionally compared with sequences deposited in the NCBI GenBank database originating from China, India, Malaysia and Iran to evaluate genetic diversity. Seven Fusarium species were identified, with a significant dominance of F. sacchari (64.3%). The species belonged to the Fusarium fujikuroi species complex (FFSC, five species) and the Fusarium incarnatum‐equiseti species complex (FIESC, two species). Based on TEF‐1α sequences, a high genetic differentiation ( F ST = 18%) was observed for F. sacchari among countries. Sixteen haplotypes were identified, with the prevalence of one haplotype (60.4%) despite their geographical separation. The AFLP‐based genetic structure of the 56 isolates indicated three genetic clusters ( K = 3), with moderate genetic diversity. This study advances the understanding of Fusarium spp. diversity and population structure, contributing to the development of integrated disease management strategies.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé, mais le titre doit être comparé manuellement.
- Titre Crossref
- Molecular Identification and Diversity of <i>Fusarium</i> spp. Associated With Sugarcane in Brazil
- Date Crossref
- 01/03/2026
- Éditeur
- Wiley
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Núcleo de Pesquisas Aplicadas (Brazil) pays non établi dans la noticeEntreprise
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Universidade Estadual Paulista (Unesp) pays non établi dans la noticeUniversité ou école supérieure
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Agronomical Institute of Campinas pays non établi dans la noticeOrganisme public
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IAC (United States) pays non établi dans la noticeEntreprise
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São Paulo State University (UNESP) CBioClima ‐ Center for Research on Biodiversity Dynamics and Climate Change pays non établi dans la noticeUniversité ou école supérieure
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Agronomic Institute (IAC) Campinas Ribeirão Preto São Paulo Brazil Advanced Division of Sugarcane Research and Development pays non établi dans la noticeStructure de recherche
Núcleo de Pesquisas Aplicadas (Brazil), Universidade Estadual Paulista (Unesp) et Agronomical Institute of Campinas, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.