Expression Analysis of Flowering Activator AGL24 and Its Protein Interactions with Regulation Factors SOC1,SVP and FLC in Brassica juncea Identification of Interaction Sites in K-domains of Flowering Signal Integrator SOC1 and AGL24 in Brassica juncea The Flower Development of Arabidopsis thaliana Affected by Floral Meristem Identity Gene AGL24 Identification of Interaction Sites in K-domains of Flowering Signal Integrator SOC1 and AGL24 in Brassica juncea Expression Analysis of Flowering Activator AGL24 and Its Protein Interactions with Regulation Factors SOC1,SVP and FLC in Brassica juncea