Advances in Okra (Abelmoschus esculentus L.) Breeding: Integrating Genomics for Enhanced Crop Improvement
Anupam Singh, Manoj Kumar Pandey
Journal of Advances in Biology & Biotechnology · pp. 397–407 · Published 13 Apr 2024
10.9734/jabb/2024/v27i5799Abstract
Okra (Abelmoschus esculentus L.) holds significant importance as a vegetable crop, thriving in tropical and subtropical regions globally, especially in the warmer areas of temperate zones. Traditional breeding approaches tailored for self-pollinated crops have been utilized to enhance the genetic diversity of okra. These methods encompass various techniques such as plant introduction, pure line selection, hybridization combined with selection, mutation breeding, and heterosis breeding. Particularly in countries like India, pedigree selection and heterosis breeding have led to the development of numerous okra varieties and hybrids, significantly impacting local agricultural practices. Contemporary okra breeding focuses on traits crucial for optimal performance, including high yield potential, resistance to prevalent diseases like Yellow Vein Mosaic Virus (YVMV) and Okra Enation Leaf Curl Virus (OELCV), tolerance to sucking pests and borers, ease of harvest, deep green fruit coloration, and desirable plant architecture. Public sector institutions have played a pivotal role in introducing and disseminating improved okra varieties and hybrids, with more than 33 cultivars introduced in recent decades. Some of these varieties have demonstrated substantial improvements in okra production across India. This review offers an overview of the current state of okra breeding, encompassing genetic resources, cytogenetic relationships, breeding goals, varietal development processes, efforts in resistance breeding, biotechnological interventions, and future improvement strategies. By consolidating existing knowledge and highlighting ongoing research initiatives, this article aims to provide guidance and inspiration for further advancements in okra breeding and genomics, ultimately contributing to the sustainability and productivity of this essential vegetable crop.
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