Towards a rational use of African rice (Oryza glaberrima Steud.) for breeding in SubSaharan Africa
MetadataShow full item record
Moussa Sié, Kayode Sanni, Koichi Futakuchi, Baboucarr Manneh, Semon Mande, Raymond Vodouhe, Selome Dogbe, Khady-Nani Dramé, Ayoni Ogunbayo, Marie-Noëlle Ndjiondjop, Karim Traoré. (18/1/2012). Towards a rational use of African rice (Oryza glaberrima Steud. ) for breeding in SubSaharan Africa. Genes, Genomes and Genomics, 6(special issue 1), pp. 1-7.
Africa Rice Center (AfricaRice) plays an important role in germplasm enhancement for their adaptation to different ecologies of upland, lowland, irrigated, mangrove and deep water. The genebank of AfricaRice contains over 20,000 rice accessions, notably two cultivated species (Oryza sativa and O. glaberrima) and wild species (O. longistaminata, O. barthii and O. stapfii), which are being used in breeding programs. In recent years, NERICA rice suitable for upland, lowland and irrigated ecologies were developed from interspecific crosses between O. sativa and O. glaberrima. For the better utilization of O. glaberrima, characterization studies of genetic diversity have been made using both molecular and conventional tools. The screening of this material for biotic and abiotic stresses has allowed us to identify firstly, genes for resistance to major rice diseases such as rice yellow mottle virus, rice blast disease and insect pests, and secondly, new sources of tolerance to drought, salinity and iron toxicity. A thorough exploitation of these resistance/tolerance genes will lead to rice varieties of better performance, under the heterogeneous production conditions in Africa. AfricaRice therefore planned to better exploit O. glaberrima and wild species conserved in its genebank through the use of biotechnology tools. Emphasis shall also be on the improvement of grain quality, nutritional values and post harvest techniques; this will greatly enhance the achievement of the objective of producing better quality rice in Africa. The objective of this paper is to propose several ways to better exploit O. glaberrima as breeding materials than the current interspecific breeding program through the critical review of published data and new additional data on the performance of NERICA lines.
Showing items related by title, author, creator and subject.
Title: The Economics of Land Degradation in Africa_Benefits of Action Outweigh the Costs_A complementary report to the ELD Initiative Author(s)Tilahun, Mesfin; Singh, Ashbindu; Apindi, Eugene; Barr, Jane; Lund, Gyde; Zommers, Zinta; Mungatana, EricDate: 2015-12-22Type: ReportStatus: Open accessLand degradation and desertification are among the biggest environmental challenges of our time. In the last 40 years, we lost nearly a third of the world’s arable farmland due to erosion, just as the number of people to ...
Title: Influence of putative forest refugia and biogeographic barriers on the level and distribution of genetic variation in an African savannah tree, Khaya senegalensis (Desr.) A. Juss Author(s)Sexton, Gary; Frere, Celine; Kalinganire, Antoine; Uwamariya, A.; Lowe, Andrew; Godwin, Ian; Prentis, Peter; Dieters, M.Date: 2015-10-31Type: Journal ArticleStatus: Timeless limited accessPhylogeographic studies of tropical and subtropical tree species provide an ideal method to study the role of forest refugia in the structuring of genetic diversity in contemporary populations. To date, most studies have ...
Title: Geographical distribution of traits and diversity in the world collection of pearl millet [Pennisetum glaucum (L.) R. Br., synonym: Cenchrus americanus (L.) Morrone] landraces conserved at the ICRISAT genebank Author(s)Upadhyaya, Hari D.; Rai, K.N.; Ahmed, Mohammed; Manga, Vinod Kumar; Gumma, Murali Krishna; Senthil, RamachandranDate: 2016-09-07Type: Journal ArticleStatus: Limited accessThe genebank at ICRISAT conserves the largest collection of 23,092 pearl millet germplasm accessions originating in 52 countries. A total of 15,979 landraces originating in 34 countries and having geographic coordinates ...