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ISSN: 2169-0111

Advancements in Genetic Engineering
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Review Article

Towards Genetic Engineering in Cocoyam Food Crop: Challenges and Prospects

Obidiegwu EJ*
National Root Crops Research Institute Umudike, PMB 7006, Umuahia Abia State, Nigeria
Corresponding Author : Jude Ejikeme Obidiegwu
National Root Crops Research Institute Umudike
PMB 7006, Umuahia Abia State, Nigeria
Tel: 234 7052282493
Email: [email protected]
Received: May 19, 2015 Accepted: June 24, 2015 Published: June 26, 2015
Citation: Obidiegwu EJ (2015) Towards Genetic Engineering in Cocoyam Food Crop: Challenges and Prospects. Adv Genet Eng 4:121. doi: 10.4172/2169-0111.1000121
Copyright: © 2015 Obidiegwu EJ. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Cocoyams (Colocasia esculenta and Xanthosoma sagittifolium) are important staple food in many parts of tropics including Africa, Asia and Pacific. Cocoyam is categorised as a neglected food crop and mainly grown for subsistence agriculture. Attempts to improve the crop have been limited due to knowledge gaps in physiological and biological processes affecting breeding against biotic and abiotic stresses. Genetic engineering offers an alternative platform in advancing improvement. This paper highlights the progress made in tissue culture through micropropagation, organogenesis and somatic embryogenesis. The influence of genotypes, explant sources, and culture media is brought into perspective while elucidating system regeneration efficiency using axillary buds, shoot tips, meristem tips and petiole. The efficiency of transformation system using both Agrobacterium tumefaciens and particle bombardment is highlighted while suggestions are made for future research in genetic engineering.

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