Screening of Reference Genes Used in qRT-PCR and Expression Analysis of PheTFL1 Gene in Moso Bamboo Cloning and Amino Acid Sequence Analysis of CEN/TFL1-like Gene in Common Wheat Functional Study of TFL1 Genes in Stage Transformation in Sweet Cherry PPF1 May Suppress Plant Senescence via Activating TFL1 in Transgenic Arabidopsis Plants Functional Study of TFL1 Genes in Stage Transformation in Sweet Cherry