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Altered expression of maize PLASTOCHRON1 enhances biomass and seed yield by extending cell division duration
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SYSNO ASEP 0475688 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Altered expression of maize PLASTOCHRON1 enhances biomass and seed yield by extending cell division duration Author(s) Sun, X. (CN)
Cahill, J. (BE)
Van Hautegem, T. (BE)
Feys, K. (BE)
Whipple, C. (BE)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Delbare, S. (BE)
Versteele, C. (BE)
Demuynck, C. (FR)
De Block, J. (BE)
Storme, V. (BE)
Claeys, H. (BE)
Van Lijsebettens, M. (BE)
Coussens, G. (BE)
Ljung, K. (SE)
De Vliegher, A. (BE)
Muszynski, M. (US)
Inzé, D. (BE)
Nelissen, H. (BE)Number of authors 19 Article number 14752 Source Title Nature Communications. - : Nature Publishing Group
Roč. 8, MAR 16 (2017)Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords organ size ; arabidopsis-thaliana ; gene-expression ; leaf size ; growth ; cytochrome-p450 ; protein ; plants ; inference ; mechanism Subject RIV EB - Genetics ; Molecular Biology OECD category Cell biology Institutional support UEB-Q - RVO:61389030 UT WOS 000396398900001 DOI 10.1038/ncomms14752 Annotation Maize is the highest yielding cereal crop grown worldwide for grain or silage. Here, we show that modulating the expression of the maize PLASTOCHRON1 (ZmPLA1) gene, encoding a cytochrome P450 (CYP78A1), results in increased organ growth, seedling vigour, stover biomass and seed yield. The engineered trait is robust as it improves yield in an inbred as well as in a panel of hybrids, at several locations and over multiple seasons in the field. Transcriptome studies, hormone measurements and the expression of the auxin responsive DR5(rev): mRFPer marker suggest that PLA1 may function through an increase in auxin. Detailed analysis of growth over time demonstrates that PLA1 stimulates the duration of leaf elongation by maintaining dividing cells in a proliferative, undifferentiated state for a longer period of time. The prolonged duration of growth also compensates for growth rate reduction caused by abiotic stresses. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2018
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