Genetic and molecular pathways controlling rice inflorescence architecture

Yan Chun; Ashmit Kumar; Xueyong Li

doi:10.3389/fpls.2022.1010138

Genetic and molecular pathways controlling rice inflorescence architecture

Front Plant Sci. 2022 Sep 28:13:1010138. doi: 10.3389/fpls.2022.1010138. eCollection 2022.

Authors

Yan Chun¹, Ashmit Kumar^{1

2}, Xueyong Li¹

Affiliations

¹ National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China.
² College of Agriculture, Fisheries and Forestry, Fiji National University, Nausori, Fiji.

Abstract

Rice inflorescence is one of the major organs in determining grain yield. The genetic and molecular regulation on rice inflorescence architecture has been well investigated over the past years. In the present review, we described genes regulating rice inflorescence architecture based on their roles in meristem activity maintenance, meristem identity conversion and branch elongation. We also introduced the emerging regulatory pathways of phytohormones involved in rice inflorescence development. These studies show the intricacies and challenges of manipulating inflorescence architecture for rice yield improvement.

Keywords: identity conversion; inflorescence; meristem; panicle branch; phytohormone; rice (Oryza sativa L.).

Publication types

Review