Progress in Molecular Genetic Breeding of Rice Spike Development

Abstract

Rice (Oryza sativa L.) is one of the most important food crops in the world, belonging to the Gramineae family of the basal monocotyledonous group of angiosperms. It has become a model plant for Gramineae and even monocotyledons. Rice flower/spike is the first major element of rice yield composition, and the study of the molecular genetic mechanism of flower/spike development in rice is of great significance in guiding the yield improvement of rice and other gramineous crops. However, there were fewer reviews on rice flower/spike development. This paper summarized the related gene regulation of rice spike development, gene editing, the genetic regulatory network of spike development, and the application of high-yield breeding. This will provide a theoretical basis and technical support for the research on the molecular genetic improvement of rice in flower/spike.