The Status of Genetic Resources and Olive Breeding in Tunisia

Debbabi, Olfa Saddoud; Amar, Fathi Ben; Rahmani, Sameh Mnasri; Taranto, Francesca; Montemurro, Cinzia; Miazzi, Monica Marilena

doi:10.3390/plants11131759

Cited by 15 publications

(6 citation statements)

References 81 publications

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“…grown for table olive production. Fruit size is a trait with high heritability [42,43], one of the most important domestication traits [44,45], and a target of modern olive breeding programs [46,47]. It will be interesting to further study the common genetic background of the cluster to identify genetic determinants associated with fruit size [48].…”

Section: Discussionmentioning

confidence: 99%

A Glimpse into the Genetic Heritage of the Olive Tree in Malta

Miazzi,

Pasqualone,

Zammit-Mangion

et al. 2024

Agriculture

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The genetic diversity of the ancient autochthonous olive trees on the Maltese islands and the relationship with the wild forms growing in marginal areas of the island (57 samples), as well as with the most widespread cultivars in the Mediterranean region (150 references), were investigated by genetic analysis with 10 SSR markers. The analysis revealed a high genetic diversity of Maltese germplasm, totaling 84 alleles and a Shannon information index (I) of 1.08. All samples from the upper and the lower part of the crown of the Bidni trees belonged to the same genotype, suggesting that there was no secondary top-grafting of the branches. The Bidni trees showed close relationships with the local wild germplasm, suggesting that the oleaster population played a role in the selection of the Bidni variety. Genetic similarities were also found between Maltese cultivars and several Italian varieties including accessions putatively resistant to the bacterium Xylella fastidiosa, which has recently emerged in the Apulia region (Italy) and has caused severe epidemics on olive trees over the last decade.

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Section: Discussionmentioning

confidence: 99%

A Glimpse into the Genetic Heritage of the Olive Tree in Malta

Miazzi,

Pasqualone,

Zammit-Mangion

et al. 2024

Agriculture

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“…These oases contribute significantly to biodiversity and soil conservation, as well as carbon sequestration. The deep root systems of almond and olive trees help prevent soil erosion, while diverse cropping systems enhance ecosystem resilience (Ossama et al, 2021;Debbabi et al, 2022). Almond trees (Prunus dulcis) and olive trees (Olea europaea) are commonly found in Mediterranean oases, providing nuts and oil, respectively.…”

Section: Almond and Olive Oasis (Mediterranean Basin)mentioning

confidence: 99%

“…Almond trees (Prunus dulcis) and olive trees (Olea europaea) are commonly found in Mediterranean oases, providing nuts and oil, respectively. Annual crops such as grapes, tomatoes, peppers, and chickpeas are often grown between tree rows (Ossama et al, 2021;Debbabi et al, 2022).…”

Section: Almond and Olive Oasis (Mediterranean Basin)mentioning

confidence: 99%

Oasis agriculture revitalization and carbon sequestration for climate-resilient communities

Dhawi,

Aleidan

2024

Front. Agron.

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Revitalizing oasis agriculture, an age-old human endeavor, has historically played a crucial role in sustaining biodiversity and ecosystems in arid regions. Nevertheless, this enduring practice now faces contemporary challenges, including global warming, water scarcity, soil erosion, and negative human activities associated with urbanization. This comprehensive review delves into diverse literature across disciplines, covering topics such as water conservation, biodiversity restoration, agroforestry, and Oasis Holistic Management, with the aim of addressing these challenges. The analysis strongly advocates for the urgent adoption of sustainable practices, including precision irrigation, polyculture, organic farming, agroforestry, and community-based initiatives, to ensure the survival of oasis agriculture and foster long-term environmental and social responsibility. The study underscores the imperative need for the development of “comprehensive, flexible, and forward-looking management strategies” to guide the sustainable revival of oasis farming. By consolidating information from various studies, it lays the groundwork for informed decision-making and policy formulation. As part of revitalizing the oasis agricultural ecosystem and addressing the global climate crisis, we propose a noninvasive tool for assessing carbon sequestration effectiveness based on tree specifications. Recognizing the pivotal role of vegetation in mitigating the ecological impact and facing global crises, we explored parameters influencing plant carbon sequestration, including biomass production, growth rate, longevity, root structure, leaf structure, and average temperature tolerance.

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“…Tunisia, a country rich in phytogenetic resources, has been able to preserve its agricultural history via its agricultural tradition coupled with a program of prospection, acclimatization, and development of plants. These resources consist of various indigenous elements that are a source of future wealth and whose acknowledgment is a crucial factor in the growth of the olive industry (Debbabi et al, 2022). The olive variety is the most important factor in determining the olive oil taste.…”

Section: Olive Tree Categories In Tunisiamentioning

confidence: 99%

Bioactive chemlali olive derivatives and compounds useful for pharmaceutical purposes: A review

Ksibi

2023

ijpbp

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Several articles in the literature deal with and analyze components extracted from the olive tree, but these researches are mainly focused on the quality of olive oil and more precisely its volatile components, often related to their antioxidant properties, which denies other derivatives of the olive tree that are traditional sources of several healing broths. A thorough comparison of the richness of the different derivatives as well as the methods of extraction and identification will help to provide a useful decision-making tool. Olive tree derivatives were extracted in different ways to better understand the chemical composition of the Chemlali olive tree variety as well as to evaluate the efficiency of advanced extraction procedures. A comparison through the IC50 of the Chemlali variety with other olive cultivars was performed. It shows the richness of this variety in polyphenols. In addition, we present here a qualitative and quantitative table of basic chemicals for pharmacological use derived from olive oil, leaf, and bark that have been previously described in the literature. Diverse types and concentrations of phenolic compounds-an important class of natural antioxidants-can be found in different components of olives, including leaves, fruit, pits, seeds, bark, and paste. However, comprehensive studies are deficient in comparing the quantities extracted from these different sources. Indeed, this review attempt shows the diversity of Chemlali through the use of highvalue-added molecules (VAT), which can be categorized as diterpenes such as tyrosol and phytol, triterpenes such as squalene, as well as cinnamates.

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The Status of Genetic Resources and Olive Breeding in Tunisia

Cited by 15 publications

References 81 publications

A Glimpse into the Genetic Heritage of the Olive Tree in Malta

A Glimpse into the Genetic Heritage of the Olive Tree in Malta

Oasis agriculture revitalization and carbon sequestration for climate-resilient communities

Bioactive chemlali olive derivatives and compounds useful for pharmaceutical purposes: A review

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