| Autor: |
Haruki Ishikawa, Nouhoun Belko, Siva K. Chamarthi, Kanako Suzuki, Abou Togola, Christian Fatokun, Ousmane Boukar |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Advances in Plant Breeding Strategies: Legumes ISBN: 9783030233990 |
| Popis: |
Cowpea, Vigna unguiculata (L.) Walp., is an important grain legume grown and consumed not only in the dry savannah areas of Sub-Saharan Africa but also in many other tropical and subtropical regions. It provides income, food and nutrition security to millions of people. Several studies have led to a better understanding of the taxonomy of cowpea and its wild relatives. The species diversity, distribution and evolution of cowpea have been intensively explored. The crop is mainly cultivated in intercropping system where its low plant population does not allow the full expression of the yield potential of the cultivars being grown. Considerable challenges affect the production of this crop despite its comparatively better adaptation to harsh environments. The available genetic resources maintained in the different gene banks are being used for the improvement of cowpea. Germplasm diversity and cultivars characterization were conducted in different studies. Sources of resistance/tolerance to key biotic and abiotic stresses are being identified and introgressed genes involved in new breeding lines are being developed. Improvement strategies were developed to address the major constraints to production while also taking consumer preferences into consideration. Breeding approaches of self-pollinated crops were used in the breeding programs. Application of biotechnology has been suggested to address intractable problems. Considerable effort has been made to genetically transform cowpea. Recent development of genomic resources should support the implementation of molecular breeding to complement conventional breeding and to enhance genetic gain. Key elements needed for successful application of molecular breeding tools include the availability of a high-throughput genotyping platform, high-quality consensus genetic maps, improved phenotyping capability and identification of markers closely linked to target traits. Progress is being recorded in many of these areas which should allow the development of modern breeding programs that will result in effective and efficient development of improved resilient cowpea cultivars. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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