INVITED REVIEW Biotechnological advances in pomegranate (Punica granatum L.)
نویسندگان
چکیده
Pomegranate (Punica granatum L.) is known for its nutritional, medicinal, and ornamental importance. It is conventionally propagated by hardwood and softwood cuttings, but about 1 yr is needed before the rooted cuttings can be transplanted to the field. Propagation by seed is undesirable as populations are heterozygous and seed propagation leads to wide variations in tree and fruit characteristics. Several studies have been conducted on in vitro culture of pomegranate, and protocols have been developed for plant regeneration through organogenesis and embryogenesis from various types of explants. Tissue culture has enabled mass propagation of superior genotypes of both wild and cultivated varieties. However, successful application of tissue culture systems for genetic engineering of pomegranate is still limited. Molecular markers are essential for identification and discrimination of genotypes for genetic conservation, crop improvement, breeding programs, and commercialization of superior genotypes. These techniques may also be applicable to rapid identification and indexing of disease-free planting material. This review focuses on the biotechnological approaches that are being used for pomegranate improvement.
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