摘要
低磷限制植物产量提高和品质改良是全球亟待解决的土壤养分问题之一,利用现代转基因技术结合常规育种手段培育磷高效新品种是解决这一问题的有效途径。目前,已有百余个磷营养效率候选基因被克隆,但真正用于植物转基因育种实践的却寥寥无几,且进展缓慢。究其原因可能是由于现有候选基因种类繁杂且未系统分类,有些基因的功能尚未明确,缺少克隆与育种交流平台等问题。鉴于此,本文将目前已克隆的植物磷营养效率候选基因按照其功能不同进行分析,对基因的生物学功能及其潜在应用价值进行归纳总结。这不仅为分子生物学家选择目标基因,解析植物磷高效分子机制提供参考,同时为育种学家进行基因转化,培育磷高效新品种搭建平台。
Low phosphorus（P） availability in soil and consequent P-deficiency represent the major constraint to plant production and quality improving in many countries.Selecting or developing new plant germplasms or varieties that are better adapted to low soil P conditions through the modern transgenic breeding approach may provide a new opportunity to improve the efficiency of phosphorus by plants.Recently,many molecular biology labs have identified hundreds of genes associated with plant phosphorus metabolic pathway.But only a few were used in plant transgenic breeding and the research progress were very laggardly.The reasons may be related to the unclear gene functions,different gene types and the collaboration problems between breeding and molecular biology researchers.In this review,we summarized the research progress of phosphorus metabolism related candidate genes in plant,and the gene types were also analyzed.More important in this paper is that the functions and latent values of all these genes related to phosphorus-metabolism were pointed out and concluded.So it is significant to offer some useful genes to plant transgenic breeding with high P-efficiency,and also very important to understand the molecular mechanisms of P-efficiency in plant.
出处
《植物遗传资源学报》
CAS
CSCD
北大核心
2012年第1期83-97,共15页
Journal of Plant Genetic Resources
基金
国家转基因重大专项课题(2009ZX08004-004B)
国家自然科学基金项目(31071441)
河北省自然科学基金项目(C2010000749)
河北省教育厅科学研究项目
关键词
低磷胁迫
候选基因
转基因育种
植物磷高效
Low phosphorus stress
Candidate genes
Transgenic breeding approach
Phosphorus efficiency
