Transgenic Papaya

Randle, Melaine; Tennant, Paula

doi:10.1007/978-981-15-5932-7_6

Cited by 2 publications

(1 citation statement)

References 105 publications

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“…Transgenic papaya plants have been successfully engineered to alter elite traits related to tree growth, nitrogen metabolism, lignin contents and abiotic stress tolerance [ 81 , 82 ]. Moreover, resistance in papaya was also conferred against phytophthora blight, papaya dieback disease (PDBD) and papaya ringspot virus (PRSV) in several studies [ 83 ]. Among non-transgenic approaches, dsRNA-mediated protection strategies have also been practiced in papaya against PRSV [ 84 ].…”

Section: Genomics and Genetic Engineering Perspectives Of Treesmentioning

confidence: 99%

Induced Genetic Variations in Fruit Trees Using New Breeding Tools: Food Security and Climate Resilience

Sattar

Iqbal

Al-Khayri

et al. 2021

Plants

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Fruit trees provide essential nutrients to humans by contributing to major agricultural outputs and economic growth globally. However, major constraints to sustainable agricultural productivity are the uncontrolled proliferation of the population, and biotic and abiotic stresses. Tree mutation breeding has been substantially improved using different physical and chemical mutagens. Nonetheless, tree plant breeding has certain crucial bottlenecks including a long life cycle, ploidy level, occurrence of sequence polymorphisms, nature of parthenocarpic fruit development and linkage. Genetic engineering of trees has focused on boosting quality traits such as productivity, wood quality, and resistance to biotic and abiotic stresses. Recent technological advances in genome editing provide a unique opportunity for the genetic improvement of woody plants. This review examines application of the CRISPR-Cas system to reduce disease susceptibility, alter plant architecture, enhance fruit quality, and improve yields. Examples are discussed of the contemporary CRISPR-Cas system to engineer easily scorable PDS genes, modify lignin, and to alter the flowering onset, fertility, tree architecture and certain biotic stresses.

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Section: Genomics and Genetic Engineering Perspectives Of Treesmentioning

confidence: 99%

Induced Genetic Variations in Fruit Trees Using New Breeding Tools: Food Security and Climate Resilience

Sattar

Iqbal

Al-Khayri

et al. 2021

Plants

View full text Add to dashboard Cite

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Carica papaya L.: A Tropical Fruit with Benefits beyond the Tropics

et al. 2022

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Carica papaya L. (family: Caricaceae), also known as ‘papaya,’ is a tropical American fruit tree. Due to the bioactive components (carpaines, BITC, benzyl glucosinolates, latex, papain, zeaxanthin, choline, etc.) in its seeds, leaves, and fruits, it is revered for its excellent antioxidant, digestive, and nutraceutical benefits. Papayas are high in vitamins A, B, C, E, and K, folate, pantothenic acid, zeaxanthin, lycopene, lutein, magnesium, copper, calcium, and potassium. Being rich in fiber, antioxidants, and vitamin C, it lowers the cholesterol in the arteries; prevents arthritis; reduces aging, cancer, macular degradation, risk of cardiovascular diseases, and stress; increases platelet count; controls dengue fever; facilitates digestion, and lowers body weight. Papaya leaf extract, with many in vitro and case studies in combination therapies with modern medicine, especially for cancers and many other viral diseases, has been found to be an efficient cure. Humans have cultivated papaya cultivars for millions of years because of their significant commercial, medicinal, and agronomic value. Several reports have been published on the genetic modification of papaya for resistance to abiotic (herbicide, Al toxicity, etc.) and biotic stressors (PRSV, mites, Phytophthora, etc.), delaying ripening, and improving shelf life. However, most of these traits have not been introduced globally to all commercial papaya varieties. Unraveling the genetics of papaya has shed light on various domestication impacts, evolutionary patterns, and sex determination in fruit tree crops. It also serves as a potential step toward developing new cultivars to fight climate-oriented stress. Furthermore, extensive research on the stability of the ‘transgene’ across generations, and the ‘yield-penalty’ caused by the transgene, is required. Thus, meticulous crop improvement research on commercial papaya cultivars is necessary for long-term food and health security. This review article encompasses information on the traditional and modern medicinal uses, nutritional properties, phytochemistry, diseases and etiology, post-harvest measures, genomics, biotechnological strategies (for papaya improvement), and value-added products of papaya for food and health security.

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Transgenic Papaya

Cited by 2 publications

References 105 publications

Induced Genetic Variations in Fruit Trees Using New Breeding Tools: Food Security and Climate Resilience

Induced Genetic Variations in Fruit Trees Using New Breeding Tools: Food Security and Climate Resilience

Carica papaya L.: A Tropical Fruit with Benefits beyond the Tropics

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