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  1. 研究領域

    1. 節水抗旱稻研發

    主要開展節水抗旱稻育種和高產節水栽培研究。利用現代分子育種技術與常規育種技術相結合,培育兼顧抗病蟲、養分高效利用、高產優質和節水抗旱等特性的水稻新品種。目前育種的主要目標區域是長江流域、黃淮海地區和東南亞。同時研究節水抗旱稻在水田和旱地等不同生態條件和耕作方式下,減少農藥和化肥用量,提高水分利用效率等高產節水栽培技術,增加中低產田產量。
    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. 水稻抗逆性遺傳研究

    以抗干旱、耐低氮、耐低磷為主要目標性狀,研究水稻非生物逆境抗性的遺傳機制。使用重組自交系和導入系等人工構建群體進行連鎖作圖,或者水稻核心種質等自然群體進行關聯定位;整合基因、蛋白組和代謝譜等信息,分析抗旱性的調控網絡;基于聚合育種程序與干旱、低氮條件下的有效選擇,培育有應用前景的育種材料。
    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. 水稻抗旱與抗紋枯病遺傳研究

    采用重組自交系群體、DH群體、導入系等人工創建材料和自然品種群體進行連鎖和關聯分析,研究水稻避旱性的分子遺傳基礎(包括吸收深層土壤水分的根系形態特征、葉片氣孔開閉的調控等);研究水稻抗紋枯病的分子遺傳基礎,篩選、創制抗紋枯病新種質。
    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. 水稻節水抗旱基因調控研究

    研究水稻節水抗旱基因調控生物學和資源生物學。主要研究目標是鑒定和克隆水稻干旱脅迫響應或節水抗旱的功能基因、調控基因和非編碼miRNA,闡明這些基因的功能及其在水稻節水抗旱中的作用,揭示水稻節水抗旱的分子機制。同時還開展植物種質資源的超低溫保存技術以及利用滴灌技術栽培節水抗旱稻的技術工藝與環境效應研究。
    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. 水稻抗旱資源與基因功能研究

    利用抗旱鑒定設施對水稻資源、遺傳群體等進行抗旱性鑒定與評價,結合分子標記和基因組測序等技術進行連鎖和關聯分析,研究水稻抗旱性的分子遺傳基礎。同時利用基因表達譜發掘抗旱基因,開展基因功能研究。
    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

    采用基因組多態性篩選、轉錄組分析和突變體鑒定等反向遺傳學方法,克隆水稻抗旱品種資源中有利基因,研究基因功能和水稻抗旱分子機制,并探討這些基因在水稻基因工程育種中的利用。
    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.
     

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