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Genetic Regulation of Shoot Architecture

journal contribution
posted on 2023-05-21, 09:41 authored by Wang, B, Steven SmithSteven Smith, Li, J
Shoot architecture is determined by the organization and activities of apical, axillary, intercalary, secondary, and inflorescence meristems and by the subsequent development of stems, leaves, shoot branches, and inflorescences. In this review, we discuss the unifying principles of hormonal and genetic control of shoot architecture including advances in our understanding of lateral branch outgrowth; control of stem elongation, thickness, and angle; and regulation of inflorescence development. We focus on recent progress made mainly in Arabidopsis thaliana, rice, pea, maize, and tomato, including the identification of new genes and mechanisms controlling shoot architecture. Key advances include elucidation of mechanisms by which strigolactones, auxins, and genes such as IDEAL PLANT ARCHITECTURE1 and TEOSINTE BRANCHED1 control shoot architecture. Knowledge now available provides a foundation for rational approaches to crop breeding and the generation of ideotypes with defined architectural features to improve performance and productivity.

History

Publication title

Annual Review of Plant Biology

Volume

69

Pagination

437-468

ISSN

1545-2123

Department/School

School of Natural Sciences

Publisher

Annual Reviews

Place of publication

United States

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the biological sciences

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