Fig. 7

Heat map representation and hierarchical clustering of BoHSP70 genes expression levels in different periods of cabbage bud. f2: tetrad stage of the fertile buds, f3: microspore period of the fertile buds, f4: binuclear phase of the fertile buds, s2: tetrad stage of the sterile buds, s3: microspore period of the sterile buds, s4: binuclear phase of the sterile buds