玉米智能冠层叶片角度调节。

IF 6.2 1区 生物学 Q1 PLANT SCIENCES
The Plant Journal Pub Date : 2025-01-01 Epub Date: 2024-12-11 DOI:10.1111/tpj.17208
Qinyue Jiang, Yijun Wang
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引用次数: 0

摘要

近几十年来,单交杂交种的密集种植促进了玉米产量的增加。叶片角是与种植密度相关的重要农艺性状,对冠层透光和光合效率起着基础性作用。在智能冠层概念中,叶片角度是植物建筑的一个关键参数。玉米智能冠状植物结构表现出最佳叶片角度,导致上部叶片直立,下部叶片中等或水平。叶片角度调控是培育冠层理想型品种的重要途径。本文首先介绍了玉米极性轴与叶片角度形成的关系。然后,我们回顾了玉米叶角突变体和数量遗传学的研究进展,重点介绍了转录因子对玉米叶角调控的生物学意义。我们强调,KNOX家族对叶片鞘边界的建立至关重要,油菜素内酯途径组分以及调节因子ZmRAVL1是控制玉米叶片角度形成的转录层次结构的关键枢纽。我们还提出了在冠层间操纵玉米叶片角度的潜在途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Leaf angle regulation toward a maize smart canopy.

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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