Genetic variations in trnL-F sequence and phylogenetic clustering of Lycoris species Nucleotide Variation in the NCED3 Region of Arabidopsis thaliana and its Association Study with Abscisic Acid Content under Drought Stress Analysis of Interspecific Relationships in Lycoris Herb. Based on trnH-psbA Sequence Analysis of Interspecific Relationships in Lycoris Herb. Based on trnH-psbA Sequence