Articles
Morphological and molecular characterization of fibrousness in mangoes
Article number
1362_48
Pages
359 – 366
Language
English
Abstract
Mango (Mangifera indica L.) is one of the most important fruit trees in tropical and subtropical regions.
The fruit is a drupe with a fleshy edible mesocarp.
The seed is covered with a hard fibrous endocarp.
The fibers penetrate from the endocarp into the mesocarp.
Fibers characterize all mango cultivars, but some are considered more fibrous then others.
High quality cultivars have short and soft fibers, but in fibrous cultivars they are harder and may fill the entire mesocarp, negatively influencing customers satisfaction.
The aim of this study was the characterization of fiber formation in fibrous and non-fibrous accessions morphologically and histologically in ripened fruits.
Two types of fibers were detected: thick and long fibers driven from the fruit stalk, extending the entire length of the fruit just under the peal, and shorter fibers that emerge from the endocarp.
Fibers developed in the mesocarp of fibrous accessions have larger cross section areas relative to those of non-fibrous cultivars.
However, the main difference is probably the fibers rigidity.
Next generation sequencing performed during fruit development and seed hardening of some fibrous and non-fibrous accessions, the mesocarp and endocarp tissues revealed selective differential gene expression.
Our work sheds light on the differences between fibrous and non-fibrous cultivars, enabling a better understanding of the processes leading to fiber formation in the mesocarp.
This information is valuable for developing markers for breeding of non-fibrous cultivars and for future biotechnological approaches to generate fibrous-free cultivars.
The fruit is a drupe with a fleshy edible mesocarp.
The seed is covered with a hard fibrous endocarp.
The fibers penetrate from the endocarp into the mesocarp.
Fibers characterize all mango cultivars, but some are considered more fibrous then others.
High quality cultivars have short and soft fibers, but in fibrous cultivars they are harder and may fill the entire mesocarp, negatively influencing customers satisfaction.
The aim of this study was the characterization of fiber formation in fibrous and non-fibrous accessions morphologically and histologically in ripened fruits.
Two types of fibers were detected: thick and long fibers driven from the fruit stalk, extending the entire length of the fruit just under the peal, and shorter fibers that emerge from the endocarp.
Fibers developed in the mesocarp of fibrous accessions have larger cross section areas relative to those of non-fibrous cultivars.
However, the main difference is probably the fibers rigidity.
Next generation sequencing performed during fruit development and seed hardening of some fibrous and non-fibrous accessions, the mesocarp and endocarp tissues revealed selective differential gene expression.
Our work sheds light on the differences between fibrous and non-fibrous cultivars, enabling a better understanding of the processes leading to fiber formation in the mesocarp.
This information is valuable for developing markers for breeding of non-fibrous cultivars and for future biotechnological approaches to generate fibrous-free cultivars.
Authors
M. Ish-Shalom, A. Doron-Faigenboim, S. Tsaidi, H. Zemach, A. Sherman, Y. Cohen
Keywords
Mangifera indica, mango, fruit, mesocarp, fibers, breeding
Groups involved
- Division Plant Genetic Resources, Breeding and Biotechnology
- Division Ornamental Plants
- Division Tropical and Subtropical Fruit and Nuts
- Division Vegetables, Roots and Tubers
- Division Temperate Tree Nuts
- Division Temperate Tree Fruits
- Division Vine and Berry Fruits
- Division Greenhouse and Indoor Production Horticulture
- Division Postharvest and Quality Assurance
- Division Horticulture for Human Health
- Commission Agroecology and Organic Farming Systems
- Working Group Genetic Transformation and Gene Editing
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