共查询到20条相似文献,搜索用时 0 毫秒
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基因工程与植物的遗传改良 总被引:1,自引:0,他引:1
概述了植物基因工程的发展历史及其在植物遗传改良中与常规改良技术相比具有的明显优势,介绍了经基因工程技术改良的转基因植物研究与应用状况,分析了植物基因工程在植物遗传改良中的潜在风险.阐述了利用植物基因工程进行遗传改良与常规遗传改良的关系,并对今后基因工程在植物遗传改良中的应用前景进行了展望。 相似文献
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Plant Cell, Tissue and Organ Culture (PCTOC) - 相似文献
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Plant genetic engineering for crop improvement 总被引:1,自引:0,他引:1
Plant genetic engineering has long since left its experimental stage: transgenic plants with resistance to viruses, bacteria, fungi, various pests and abiotic stresses have already been released in their hundreds. Transgenic plants can produce better fruits and food of higher quality than wild-types, and can be used as bioreactors for the synthesis of pharmaceutically important compounds. This review portrays some of the achievements in this field of plant molecular biology.The authors are with Plant Molecular Biology, Biozentrum, Frankfurt University, Marie-Curie-Strasse 9, D-60439 Frankfurt, Germany 相似文献
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Liwen Yang Pingxian Zhang Yifan Wang Guihua Hu Weijun Guo Xiaofeng Gu Li Pu 《中国科学:生命科学英文版》2022,65(11):2191-2204
Efforts have been directed to redesign crops with increased yield, stress adaptability, and nutritional value through synthetic biology—the application of engineering principles to biology. A recent expansion in our understanding of how epigenetic mechanisms regulate plant development and stress responses has unveiled a new set of resources that can be harnessed to develop improved crops, thus heralding the promise of “synthetic epigenetics.” In this review, we summarize the latest advances in e... 相似文献
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Genome engineering for crop improvement and future agriculture 总被引:1,自引:0,他引:1
Caixia Gao 《Cell》2021,184(6):1621-1635
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Saeed Rauf Zafar Iqbal Muhammad Shahzad 《Archives Of Phytopathology And Plant Protection》2013,46(17):2051-2061
Progress in the genetic improvement of Citrus species was reviewed. Tools used for the genetic improvement of Citrus were categorised as conventional (introduction, selection and hybridisation) and non-conventional methods (mutation, somatic cell hybridisation and genetic engineering) of improvement. Genes linked with the disease resistance were characterised and tagged through molecular marker techniques such as Sequenced Characterised Amplified Region and Cleaved Amplified Polymorphic Sequences. Disease resistance genes showed both monogenic and polygenic inheritance. Conventional methods for disease resistance improvement of Citrus were bottleneck due to inadequate and lengthy breeding procedures. However, non-conventional methods, such as mutation breeding and protoplast fusion, have been routinely utilised for the production of disease resistant germplasm while novel genes from variable sources were used to transform Citrus species to induce resistance against diseases. These non-conventional techniques have been shown to overcome the disadvantages of conventional breeding procedures and could be regarded as rapid methods of genetic improvement as well as helpful to overcome the interspecies barrier. 相似文献
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S. P. Singh J. R. Sharma 《TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik》1989,78(6):841-846
Summary Pyrethrum (Chrysanthemum cinerariefolium), an important paramedicinal plant is a potential source of pyrethrins, which have a long history of safe uses against mosquito larvae — a carrier of malarial parasite. It was introduced in India from Kenya in 1931. Considerable genetic diversity has been generated over the years. Repeated clonal selection could lead to isolation of a number of divergent clones representing selective divergence. Planned hybridization among some of the chosen clones could further enlarge the spectrum of variation as measured by multivariate analyses (D2-statistic and canonical analysis). The resulting hybrids manifested a variable degree of heterosis which was found to be, by and large, positively associated with the degree of divergence between the two constituent parents of a hybrid. However, the choice of the potential hybrid clone(s) for commercial exploitation was most viable when parents for hybridization were short-listed on the basis of parental divergence coupled essentially with per se performance for specific traits. The latter criterion assumes greater significance since low x low or medium x low parental hybrids also tended to register high heterosis for both the pyrethrins content and yield. Four hybrids: 234xL, 8xL, 326×395 and 319xL were identified to be the most promising for clonal selection.CIMAP publication no. 9189 相似文献
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V de Lorenzo 《Current opinion in biotechnology》1992,3(3):227-231
Environmental applications of genetically engineered microorganisms are currently hampered not only by legal regulations restricting their release, but also by the frequent dearth of adequate genetic tools for their construction in the laboratory. Recent approaches to strain development include the use of non-antibiotic markers as selection determinants, the use of transposon-vectors for the permanent acquisition of recombinant genes, and the utilization of expression devices based on promoters from promiscuous plasmids and biodegradative pathway genes. 相似文献
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对代谢工程的发展进行了简要回顾,分析了代谢工程发展的推动力,重点评述了本期专栏发表的12篇代谢工程和细胞工厂方面的论文。 相似文献
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