Cytological and SSR Analysis on Cold tolerant Gene Introgression Lines from Dongxiang Wild Rice Cloning and Expression Analysis of Retrotransposon Reverse Transcriptase in Introgression Lines from Dongxiang Wild Rice Investigation Based on cDNA-AFLP Approach for Differential Expressed Genes Responding to Drought Resistance in Dongxiang Wild Rice Comparison of the drought resistance characters at Seedling Stage between Dongxiang Common Wild rice (Oryza rufipogon Griff.) and cultivars (Oryza sativa L.) DNA Methylation Level and Pattern Changes in Cold Tolerance Introgression Lines Derived from Oryza rufipogon Griff. Index screening and comprehensive evaluation of phenotypic traits of low nitrogen tolerance using BILs population derived from Dongxiang wild rice COMPREHENSIVE APPRAISAL OF DROUGHT RESISTANCE OF DONGXIANG WILD RICE (Oryza rufipogon Griff.) BIL POPULATION AT BOOTING STAGE Cytological Studies of Male Gametogenesis and Development in the Reciprocal Interspecific Hybrid F1 of Dongxiang Wild Rice (Oryza rufipogon) and Oryza sativa Analysis of Quantitative Trait Loci for Resistance to Brown Planthopper in Dongxiang Wild Rice (Oryza rufipogon Griff.) Drought-resistance Identification of Dongxiang Common Wild Rice (Oryza rufipogon Griff.) in Whole Growth Period Analysis of Differential Expression Genes in Dongxiang Wild Rice and Its Introgression Lines under Phosphorus-deficiency Stress Genetic Analysis of Cold Tolerance at the Seedling Stage in Dongxiang Wild Rice (Oryza rufipogon) Drought resistance evaluation system for backcross lines of Dongxiang common wild rice (Oryza rufipogonGriff.). Low-phosphorus tolerance and related physiological mechanism of Xieqingzao B//Xieqingzao B/Dongxiang wild rice BC1F9 populations. Study on Genetic Diversity of Dongxiang Wild Rice (Oryza rufipogon Griff.) -Allozyme