研究领域

  1. 节水抗旱稻研发

主要开展节水抗旱稻育种和高产节水栽培研究。利用现代分子育种技术与常规育种技术相结合,培育兼顾抗病虫、养分高效利用、高产优质和节水抗旱等特性的水稻新品种。目前育种的主要目标区域是长江流域、黄淮海地区和东南亚。同时研究节水抗旱稻在水田和旱地等不同生态条件和耕作方式下,减少农药和化肥用量,提高水分利用效率等高产节水栽培技术,增加中低产田产量。
Water-saving and Drought-resistance Rice R&D
We work at water-saving and drought-resistance (WDR) breeding and water saving and high yield cultivation. By combining the use of modern molecular breeding techniques and conventional breeding methods, we breed new varieties of rice that have the characteristics of both resistance to insect, high nutrition efficiency, high yield and quality, and water saving and drought resistance. Currently, the main target area of breeding includes the Yangtze River basin, the Huang-huai-hai region and Southeast Asia region. We also study the water saving and high yield cultivation technology of WDR, especially focusing on reducing pesticide and fertilizer use and improving water use efficiency under different agro-ecological conditions and farming methods such as paddy field and dry land. Our goal is to increase rice production on middle-low yielding farmland.

  1. 水稻抗逆性遗传研究

以抗干旱、耐低氮、耐低磷为主要目标性状,研究水稻非生物逆境抗性的遗传机制。使用重组自交系和导入系等人工构建群体进行连锁作图,或者水稻核心种质等自然群体进行关联定位;整合基因、蛋白组和代谢谱等信息,分析抗旱性的调控网络;基于聚合育种程序与干旱、低氮条件下的有效选择,培育有应用前景的育种材料。
Research on Abiotic Stress Resistance in Rice
We study the genetic mechanism under the resistance to abiotic stress in rice, with high priority on drought and low soil nutrients (N and P). Both artificial segregation populations like recombinant inbred lines (RILs) or introgression lines (ILs) and natural populations like core collection of rice germplasm are used to conduct whole genome linkage or association mapping. Meanwhile, integrated analysis of profiles of genes, proteins and metabolites is conducted to understand the regulation network for drought resistance. Promising lines has been developed via pyramiding breeding procedure and effective selection under both drought and low nitrogen conditions.

  1. 水稻抗旱与抗纹枯病遗传研究

采用重组自交系群体、DH群体、导入系等人工创建材料和自然品种群体进行连锁和关联分析,研究水稻避旱性的分子遗传基础(包括吸收深层土壤水分的根系形态特征、叶片气孔开闭的调控等);研究水稻抗纹枯病的分子遗传基础,筛选、创制抗纹枯病新种质。
Genetic Research on Drought Resistance and Sheath Blight Resistance in Rice
We study the genetic basis of drought avoidance in rice. Combining the linkage analysis and association study by using mapping populations, such as RILs, DH lines, introgression lines and core collection, we try to find that what kind of root morphological characterizations are related to water absorption from deep soil, which genes regulate the root morphogenesis, which genes control stomatal closure uder dehydration stress. For the research on sheath blight resistance in rice, we use mulptiple genetic methods and different mapping populations to elucidate the molecular genetic basis. Introgression lines are used to screen and develop new sheath blight resistant rice germplasm.

  1. 水稻节水抗旱基因调控研究

研究水稻节水抗旱基因调控生物学和资源生物学。主要研究目标是鉴定和克隆水稻干旱胁迫响应或节水抗旱的功能基因、调控基因和非编码miRNA,阐明这些基因的功能及其在水稻节水抗旱中的作用,揭示水稻节水抗旱的分子机制。同时还开展植物种质资源的超低温保存技术以及利用滴灌技术栽培节水抗旱稻的技术工艺与环境效应研究。
Research on Gene Regulation Biology in Rice
Our research interests are gene regulation biology of water-saving and drought-resistant rice and germplasm biology. The primary research objectives exist in identification and cloning of drought-stress responsive or/and water-saving and drought-resistant functional and regulationary genes, non-coding miRNAs as well as in clarifying the roles of these genes and uncovering the molecular mechanism of the above stated genes. Meanwhile, we also do some research on cryopreservation of plant germplasm and production protocol and environmental evaluation of a new farming system of using drip irrigation for growing water-saving and drought-resistant rice (WDR).

  1. 水稻抗旱资源与基因功能研究

利用抗旱鉴定设施对水稻资源、遗传群体等进行抗旱性鉴定与评价,结合分子标记和基因组测序等技术进行连锁和关联分析,研究水稻抗旱性的分子遗传基础。同时利用基因表达谱发掘抗旱基因,开展基因功能研究。
Research on Drought Resistant Germplasm and Gene Function in Rice
Our researches focus on the drought resistance identification and evaluation in rice germplasm and genetic populations with specialized screening facility. And on that basis, linkage and association analysis were used to discover the molecular basis of rice drought resistance. Meanwhile, the drought resistant genes were mined by analysis of gene profiles and the gene function were elucidated by transgenic and biochemical approaches.

  1. 水稻抗旱基因功能研究

采用基因组多态性筛选、转录组分析和突变体鉴定等反向遗传学方法,克隆水稻抗旱品种资源中有利基因,研究基因功能和水稻抗旱分子机制,并探讨这些基因在水稻基因工程育种中的利用。
Research on Gene Function of Drought Resistance in Rice
We use reverse genetic methods, such as screening genomic polymorphism, analysis of transcriptome and identification of mutants, to clone beneficial genes among rice drought resistant resources. Gene function and molecular mechanism of drought resistance will be investigated. Application of those genes in rice genetic engineering breeding will be evaluated.