Leaf angle regulation toward a maize smart canopy.

IF 6.2 1区 生物学 Q1 PLANT SCIENCES
Qinyue Jiang, Yijun Wang
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引用次数: 0

Abstract

Dense planting of single-cross hybrids contributes to maize yield increase over the past decades. Leaf angle, an important agronomic trait relevant to planting density, plays a fundamental role in light penetration into the canopy and photosynthetic efficiency. Leaf angle is a key parameter of plant architecture in the concept of smart canopy. Maize smart-canopy-like plant architecture exhibits optimal leaf angle, resulting in erect upper leaves and intermediate or horizontal lower leaves. Leaf angle regulation is a promising way forward in the breeding of varieties with canopy ideotypes. In this review, we first describe the relationship between maize polarity axes and leaf angle formation. Then, we revisit advances in the mutant and quantitative genetics research of maize leaf angle, highlighting the biological implications of transcription factors for maize leaf angle regulation. We underscore that KNOX family is essential for the blade-sheath boundary establishment and brassinosteroid pathway components as well as regulator ZmRAVL1 serve as key hubs of the transcriptional hierarchy governing maize leaf angle formation. We also suggest potential avenues for manipulating maize leaf angles across canopy layers.

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来源期刊
The Plant Journal
The Plant Journal 生物-植物科学
CiteScore
13.10
自引率
4.20%
发文量
415
审稿时长
2.3 months
期刊介绍: Publishing the best original research papers in all key areas of modern plant biology from the world"s leading laboratories, The Plant Journal provides a dynamic forum for this ever growing international research community. Plant science research is now at the forefront of research in the biological sciences, with breakthroughs in our understanding of fundamental processes in plants matching those in other organisms. The impact of molecular genetics and the availability of model and crop species can be seen in all aspects of plant biology. For publication in The Plant Journal the research must provide a highly significant new contribution to our understanding of plants and be of general interest to the plant science community.
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