TY - JOUR
T1 - Seedling root system adaptation to water availability during maize domestication and global expansion
AU - Yu, Peng
AU - Li, Chunhui
AU - Li, Meng
AU - He, Xiaoming
AU - Wang, Danning
AU - Li, Hongjie
AU - Marcon, Caroline
AU - Li, Yu
AU - Perez-Limón, Sergio
AU - Chen, Xinping
AU - Delgado-Baquerizo, Manuel
AU - Koller, Robert
AU - Metzner, Ralf
AU - van Dusschoten, Dagmar
AU - Pflugfelder, Daniel
AU - Borisjuk, Ljudmilla
AU - Plutenko, Iaroslav
AU - Mahon, Audrey
AU - Resende, Marcio F.R.
AU - Salvi, Silvio
AU - Akale, Asegidew
AU - Abdalla, Mohanned
AU - Ahmed, Mutez Ali
AU - Bauer, Felix Maximilian
AU - Schnepf, Andrea
AU - Lobet, Guillaume
AU - Heymans, Adrien
AU - Suresh, Kiran
AU - Schreiber, Lukas
AU - McLaughlin, Chloee M.
AU - Li, Chunjian
AU - Mayer, Manfred
AU - Schön, Chris Carolin
AU - Bernau, Vivian
AU - von Wirén, Nicolaus
AU - Sawers, Ruairidh J.H.
AU - Wang, Tianyu
AU - Hochholdinger, Frank
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer Nature America, Inc. 2024.
PY - 2024/6
Y1 - 2024/6
N2 - The maize root system has been reshaped by indirect selection during global adaptation to new agricultural environments. In this study, we characterized the root systems of more than 9,000 global maize accessions and its wild relatives, defining the geographical signature and genomic basis of variation in seminal root number. We demonstrate that seminal root number has increased during maize domestication followed by a decrease in response to limited water availability in locally adapted varieties. By combining environmental and phenotypic association analyses with linkage mapping, we identified genes linking environmental variation and seminal root number. Functional characterization of the transcription factor ZmHb77 and in silico root modeling provides evidence that reshaping root system architecture by reducing the number of seminal roots and promoting lateral root density is beneficial for the resilience of maize seedlings to drought.
AB - The maize root system has been reshaped by indirect selection during global adaptation to new agricultural environments. In this study, we characterized the root systems of more than 9,000 global maize accessions and its wild relatives, defining the geographical signature and genomic basis of variation in seminal root number. We demonstrate that seminal root number has increased during maize domestication followed by a decrease in response to limited water availability in locally adapted varieties. By combining environmental and phenotypic association analyses with linkage mapping, we identified genes linking environmental variation and seminal root number. Functional characterization of the transcription factor ZmHb77 and in silico root modeling provides evidence that reshaping root system architecture by reducing the number of seminal roots and promoting lateral root density is beneficial for the resilience of maize seedlings to drought.
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U2 - 10.1038/s41588-024-01761-3
DO - 10.1038/s41588-024-01761-3
M3 - Article
C2 - 38778242
AN - SCOPUS:85193839285
SN - 1061-4036
VL - 56
SP - 1245
EP - 1256
JO - Nature Genetics
JF - Nature Genetics
IS - 6
ER -