Breeding maize of ideal plant architecture for high-density planting tolerance through modulating shade avoidance response and beyond∞

Fereshteh Jafari ¹Baobao Wang ²Haiyang Wang ³Junjie Zou²

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作者信息

1. Biotechnology Research Institute,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Graduate School of Chinese Academy of Agricultural Sciences,Beijing 100081,China
2. Biotechnology Research Institute,Chinese Academy of Agricultural Sciences,Beijing 100081,China;National Nanfan Research Institute,CAAS,Sanya 572025,China
3. State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources,College of Life Sciences,South China Agricultural University,Guangzhou 510642,China
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Abstract

Maize is a major staple crop widely used as food,animal feed,and raw materials in in-dustrial production.High-density planting is a major factor contributing to the continuous in-crease of maize yield.However,high planting density usually triggers a shade avoidance response and causes increased plant height and ear height,resulting in lodging and yield loss.Reduced plant height and ear height,more erect leaf angle,reduced tassel branch number,earlier flowering,and strong root system ar-chitecture are five key morphological traits re-quired for maize adaption to high-density planting.In this review,we summarize recent advances in deciphering the genetic and mo-lecular mechanisms of maize involved in re-sponse to high-density planting.We also dis-cuss some strategies for breeding advanced maize cultivars with superior performance under high-density planting conditions.

Key words

flowering time/high-density planting/leaf angle/maize/plant architecture/plant height/ear height/root archi-tecture/tassel branch

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基金项目

National Key Research and Development Program of China(2021YFF1000301)

National Natural Science Foundation of China(32022065)

National Natural Science Foundation of China(32272189)

National Natural Science Foundation of China(32130077)

Hainan Yazhou Bay Seed Lab(B21HJ8101)

Agricultural Science and Technology Innovation Program of the Chinese Academy of Agricultural sciences()

Central Public-Interest Scientific Institution Basal Research Fund()

Chinese Scholarship Council(CSC)()

出版年

2024

植物学报(英文版)

中国植物学会

植物学报(英文版)

CSTPCDCSCD

影响因子：0.921

ISSN：1672-9072

参考文献量1

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