INVITED REVIEWS
Regulation Mechanism and Breeding Application of Flowering Time in Maize
- 1State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
2Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan 512005, China
3Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
†These authors contributed equally to this paper
Received date: 2024-08-21
Accepted date: 2024-10-31
Online published: 2024-10-31
Abstract
Maize (Zea mays) is a staple crop worldwide, serving as a major source for food, feedstock, and industrial materials. Flowering time, a key agronomic trait determining diverse environmental adaptation and yield potential of crops, is determined by two developmental transitions (namely vegetative phase change and floral transition), and complicatedly regulated by internal factors (such as genetic factors and plant hormones) and external environmental factors. Given the importance of flowering time, in this review, we summarize the research progresses on the regulation of the two-phase transitions in maize, mainly focusing on the aspects of structural basis, physiological basis, genetic basis and molecular mechanisms. We also highlight the contribution of key flowering regulators to geographical adaptation of maize, and discuss future research directions on flowering and application in breeding, aiming to deepen our understanding of the genetic regulation of maize flowering and provide a theoretical basis for genetic improvement of maize cultivars adapting to diverse environmental conditions.
Key words： maize; vegetative phase change; floral transition; geographical adaptation
Cite this article
Juan Yang , Yuelei Zhao , Xiaoyuan Chen , Baobao Wang , Haiyang Wang . Regulation Mechanism and Breeding Application of Flowering Time in Maize[J]. Chinese Bulletin of Botany, 2024 , 59(6) : 912 -931 . DOI: 10.11983/CBB24127
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