Selection of Improved Banana Diploid Resistant to Fusarium oxysporum f. sp. cubense Races 1 and Subtropical 4

Welly Sacramento Santana; Anelita de Jesus Rocha; Wesley Barreto da Silva; Vanusia B. Oliveira Amorim; Andresa Priscila de Souza Ramos; Fernando Haddad; Edson Perito Amorim

doi:10.20944/preprints202404.0870.v1

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preprints.org > biology and life sciences > agricultural science and agronomy > doi: 10.20944/preprints202404.0870.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Selection of Improved Banana Diploid Resistant to Fusarium oxysporum f. sp. cubense Races 1 and Subtropical 4

Welly Sacramento Santana

Anelita de Jesus Rocha

Wesley Barreto da Silva

Vanusia B. Oliveira Amorim

Andresa Priscila de Souza Ramos

Fernando Haddad

Edson Perito Amorim

Version 1 : Received: 12 April 2024 / Approved: 12 April 2024 / Online: 15 April 2024 (04:25:42 CEST)

How to cite: Santana, W.S.; Rocha, A.D.J.; da Silva, W.B.; Amorim, V.B.O.; Ramos, A.P.D.S.; Haddad, F.; Amorim, E.P. Selection of Improved Banana Diploid Resistant to Fusarium oxysporum f. sp. cubense Races 1 and Subtropical 4. Preprints 2024, 2024040870. https://doi.org/10.20944/preprints202404.0870.v1 Santana, W.S.; Rocha, A.D.J.; da Silva, W.B.; Amorim, V.B.O.; Ramos, A.P.D.S.; Haddad, F.; Amorim, E.P. Selection of Improved Banana Diploid Resistant to Fusarium oxysporum f. sp. cubense Races 1 and Subtropical 4. Preprints 2024, 2024040870. https://doi.org/10.20944/preprints202404.0870.v1

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MDPI and ACS Style

Santana, W.S.; Rocha, A.D.J.; da Silva, W.B.; Amorim, V.B.O.; Ramos, A.P.D.S.; Haddad, F.; Amorim, E.P. Selection of Improved Banana Diploid Resistant to Fusarium oxysporum f. sp. cubense Races 1 and Subtropical 4. Preprints 2024, 2024040870. https://doi.org/10.20944/preprints202404.0870.v1

APA Style

Santana, W.S., Rocha, A.D.J., da Silva, W.B., Amorim, V.B.O., Ramos, A.P.D.S., Haddad, F., & Amorim, E.P. (2024). Selection of Improved Banana Diploid Resistant to<em> Fusarium oxysporum f. sp. </em>cubense Races 1 and Subtropical 4. Preprints. https://doi.org/10.20944/preprints202404.0870.v1

Chicago/Turabian Style

Santana, W.S., Fernando Haddad and Edson Perito Amorim. 2024 "Selection of Improved Banana Diploid Resistant to<em> Fusarium oxysporum f. sp. </em>cubense Races 1 and Subtropical 4" Preprints. https://doi.org/10.20944/preprints202404.0870.v1

Abstract

Bananas, a staple food globally and a key agricultural commodity, face a severe threat from the fungus Fusarium oxysporum form specialis cubense (Foc), significantly impacting production. Genetic improvement to develop resistant cultivars stands out as a crucial strategy to mitigate this disease. This study focused on assessing and recommending enhanced diploid banana varieties for resistance against Foc subtropical race 4 (ST4) and Foc race 1 (R1). Twenty-five improved diploids developed by Embrapa, Brazil, underwent evaluation. Utilizing a scale for internal symptoms at 90 days post-inoculation, genotypes were categorized from highly resistant to highly susceptible based on the internal symptom index. The diploid M53 exhibited high resistance to R1 and resistance to Foc ST4, while only the diploid CNPMF 0534 demonstrated complete resistance to both R1 and ST4, with resistance to the latter likely associated with penetration. These findings provide valuable insights for banana and plantain breeding programs, offering selected diploids for crossbreeding with commercial cultivars to develop new, resistant genotypes against Foc.

Keywords

Musa spp; genetic resistance; Fusarium wilt

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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