MADS-box genes and crop domestication: the jack of all traits

Journal of Experimental Botany
Susanne SchillingRainer Melzer

Abstract

MADS-box genes are key regulators of virtually every aspect of plant reproductive development. They play especially prominent roles in flowering time control, inflorescence architecture, floral organ identity determination, and seed development. The developmental and evolutionary importance of MADS-box genes is widely acknowledged. However, their role during flowering plant domestication is less well recognized. Here, we provide an overview illustrating that MADS-box genes have been important targets of selection during crop domestication and improvement. Numerous examples from a diversity of crop plants show that various developmental processes have been shaped by allelic variations in MADS-box genes. We propose that new genomic and genome editing resources provide an excellent starting point for further harnessing the potential of MADS-box genes to improve a variety of reproductive traits in crops. We also suggest that the biophysics of MADS-domain protein-protein and protein-DNA interactions, which is becoming increasingly well characterized, makes them especially suited to exploit coding sequence variations for targeted breeding approaches.

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Citations

Jan 27, 2019·Plant, Cell & Environment·Kang NingQian Wang
Jun 4, 2019·Journal of Experimental Botany·Silvia ManriqueAureliano Bombarely
Jun 24, 2020·Biochemical Society Transactions·Francesca CaselliVeronica Gregis
Mar 3, 2019·Journal of Experimental Botany·Ailbhe J Brazel, Diarmuid S Ó'Maoiléidigh
Nov 7, 2019·Proceedings of the National Academy of Sciences of the United States of America·Jingrui WuJeffrey E Habben
Oct 21, 2020·Scientific Reports·David Aguilar-BenitezAna M Torres
Nov 3, 2020·AoB Plants·Sintayehu D DabaMohsen Mohammadi
Feb 26, 2021·The Plant Cell·Peng-Fei MaDe-Zhu Li
Jan 6, 2022·Journal of Experimental Botany·Nina TrubanováSusanne Schilling

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