Publications by authors named "Andresa Priscila de Souza Ramos"

wilt is a soil borne fungal disease that has devastated banana production in plantations around the world. Most Cavendish-type bananas are susceptible to strains of f. sp.

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Bananas and plantains are important staple food crops affected by biotic and abiotic stresses. The gene editing technique via Clustered Regularly Interspaced Short Palindromic Repeats associated with the Cas protein (CRISPR/Cas) has been used as an important tool for development of cultivars with high tolerance to stresses. This study sought to develop a protocol for the construction of vectors for gene knockout.

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This work aimed to evaluate the relative gene expression of the candidate genes , , , , and involved in the defense response to Black Sigatoka in banana cultivars Calcutta-4, Krasan Saichon, Grand Nain, and Akondro Mainty, by a quantitative real-time PCR. Biotic stress was imposed on 6-month-old plants during five sampling intervals under greenhouse conditions. The and genes were upregulated for the Calcutta-4- and Krasan Saichon-resistant cultivars, and were validated in this study.

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The fresh fruits of 'Grande Naine' (Cavendish AAA- spp.) dominate the world market, especially in countries with a population in a situation of social vulnerability. However, Fusarium wilt, caused by the fungus f.

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Article Synopsis
  • Banana breeding involves creating hybrids with varying ploidy levels (diploid, triploid, tetraploid) to enhance desirable traits and increase genetic diversity in bananas, focusing on resistance to diseases like yellow and black Sigatoka and Fusarium wilt.
  • Embrapa's Banana Genetic Breeding Program aims to cross improved diploids with commercial triploids to boost both genetic variability and agronomic performance.
  • A genetic diversity study using DNA markers identified key improved diploid genotypes for breeding, revealing significant genetic differences that can guide effective crossings to maintain beneficial traits in commercial banana varieties.
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Agricultural crops are exposed to various abiotic stresses, such as salinity, water deficits, temperature extremes, floods, radiation, and metal toxicity. To overcome these challenges, breeding programs seek to improve methods and techniques. Gene editing by Clustered Regularly Interspaced Short Palindromic Repeats-CRISPR/Cas-is a versatile tool for editing in all layers of the central dogma with focus on the development of cultivars of plants resistant or tolerant to multiple biotic or abiotic stresses.

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Bananas are the main fruits responsible for feeding more than 500 million people in tropical and subtropical countries. Black Sigatoka, caused by the fungus , is one of the most destructive disease for the crop. This fungus is mainly controlled with the use of fungicides; however, in addition to being harmful to human health, they are associated with a high cost.

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