Role of biotechnological interventions in the improvement of castor (Ricinus communis L.) and Jatropha curcas L

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	Role of biotechnological interventions in the improvement of castor (Ricinus communis L.) and Jatropha curcas L
	Sujatha, M.
刊名	Biotechnology Advances
	2008
卷号	26 期号:5 页码:424-435
ISSN号	0734-9750
中文摘要	Castor and Jatropha belong to the Euphorbiaceae family. This review highlights the role of biotechnological tools in the genetic improvement of castor and jatropha. Castor is monotypic and breeding programmes have mostly relied on the variability available in the primary gene pool. The major constraints limiting profitable cultivation are: vulnerability to insect pests and diseases, and the press cake is toxic which restrict its use as cattle feed. Conventional breeding techniques have limited scope in improvement of resistance to biotic stresses and in quality improvement owing to low genetic variability for these traits. Genetic diversity was assessed using protein based markers while use of molecular markers is at infancy. In vitro studies in castor have been successful in shoot proliferation from meristematic explants, but not callus-mediated regeneration. Genetic transformation experiments have been initiated for development of insect resistant and ricin-free transgenics with very low transformation frequency. In tropical and subtropical countries jatropha is viewed as a potential biofuel crop. The limitations in available germplasm include; lack of knowledge of the genetic base, poor yields, low genetic diversity and vulnerability to a wide array of insects and diseases. Great scope exists for genetic improvement through conventional methods, induced mutations, interspecific hybridization and genetic transformation. Reliable and highly efficient tissue culture protocols for direct and callus-mediated shoot regeneration and somatic embryogenesis are established for jatropha which indicates potential for widening the genetic base through biotechnological tools. Assessment of genetic diversity using molecular markers disclosed low interaccessional variability in local Jatropha curcas germplasm. The current status and future prospects of in vitro regeneration, genetic transformation and the role of molecular tools in the genetic enhancement of the two-oilseed crops are discussed. (C) 2008 Elsevier Inc. All rights reserved.
公开日期	2015-01-28
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/8041]
专题	西双版纳热带植物园_热带植物资源可持续利用重点实验室特色文献_小桐子相关文献
推荐引用方式 GB/T 7714	Sujatha, M.. Role of biotechnological interventions in the improvement of castor (Ricinus communis L.) and Jatropha curcas L[J]. Biotechnology Advances,2008,26(5):424-435.
APA	Sujatha, M..(2008).Role of biotechnological interventions in the improvement of castor (Ricinus communis L.) and Jatropha curcas L.Biotechnology Advances,26(5),424-435.
MLA	Sujatha, M.."Role of biotechnological interventions in the improvement of castor (Ricinus communis L.) and Jatropha curcas L".Biotechnology Advances 26.5(2008):424-435.