A critical review on: Significance of floral homeotic APETALA2 gene in plant system

doi:10.7324/japs.2020.101017

Abstract

Highlights

According to the ABCDE model, APETALA2 (AP2)gene belongs to Class A gene category primary in Arabidopsis, which is responsible for sepal and petal development
One of the important gene determining the floral structure and floral meristem is APETALA2 (AP2) which belongs to a large family of transcription factors
Gene belongs to Class A gene category primary in Arabidopsis, which is responsible for sepal and petal development

Summary

INTRODUCTION

Gene belongs to Class A gene category primary in Arabidopsis, which is responsible for sepal and petal development. The presence of AP2 transcripts in floral (sepal, petal, anther, ovule, and silique) as well as in vegetative tissues (root, leaf, shoot, and stem) showed the importance of AP2 gene in reproductive and vegetative tissues (Sharma et al, 2017). AP2 confers the place and timing of floral organs as well as floral meristem and specification development in plants It directly promotes the Class C WUSCHEL gene (WUS) gene with down regulating the CLAVATA (CLV) gene to maintain the stem cell niche in floral meristem. AP2 is an essential gene in length of internode in inflorescence, seed size, and seed mass It could be one of the important genes, which regulate the cascade pathway in floral development in medicinal plant. The variation in HvAP2 transcripts and miR172 interaction showed that both are involved in the regulation of size and shape of barley inflorescence. In Phaseolus vulgaris, legumerhizobia nitrogen-fixing symbiosis system is influenced by miRNA172-AP2-1 complex (Nova-Franco et al, 2015)

Affected Reduced in number

CONCLUSION