Back to Search
Start Over
Exploiting the Genetic Diversity of Maize Using a Combined Metabolomic, Enzyme Activity Profiling, and Metabolic Modeling Approach to Link Leaf Physiology to Kernel Yield
- Source :
- The Plant cell, The Plant cell, American Society of Plant Biologists (ASPB), 2017, 29 (5), pp.919-943. ⟨10.1105/tpc.16.00613⟩, Plant Cell, Plant Cell, American Society of Plant Biologists, 2017, 29 (5), pp.919-943. ⟨10.1105/tpc.16.00613⟩
- Publication Year :
- 2017
- Publisher :
- HAL CCSD, 2017.
-
Abstract
- UMR 1332- Equipe Virologie; A combined metabolomic, biochemical, fluxomic, and metabolic modeling approach was developed using 19 genetically distant maize (Zea mays) lines from Europe and America. Considerable differences were detected between the lines when leaf metabolic profiles and activities of the main enzymes involved in primary metabolism were compared. During grain filling, the leaf metabolic composition appeared to be a reliable marker, allowing a classification matching the genetic diversity of the lines. During the same period, there was a significant correlation between the genetic distance of the lines and the activities of enzymes involved in carbon metabolism, notably glycolysis. Although large differences were observed in terms of leaf metabolic fluxes, these variations were not tightly linked to the genome structure of the lines. Both correlation studies and metabolic network analyses allowed the description of a maize ideotype with a high grain yield potential. Such an ideotype is characterized by low accumulation of soluble amino acids and carbohydrates in the leaves and high activity of enzymes involved in the C4 photosynthetic pathway and in the biosynthesis of amino acids derived from glutamate. Chlorogenates appear to be important markers that can be used to select for maize lines that produce larger kernels.
- Subjects :
- 0106 biological sciences
0301 basic medicine
feuille
maïs
fluxomique
Metabolic network
Plant Science
Biology
maize
modélisation métabolique
01 natural sciences
zea mays
03 medical and health sciences
physiologie végétale
Metabolomics
biochemical analysis
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology
Photosynthesis
2. Zero hunger
chemistry.chemical_classification
Genetic diversity
leaf
indian corn
analyse biochimique
Plant physiology
Genetic Variation
Correction
food and beverages
Ideotype
Cell Biology
Metabolism
Carbon
Amino acid
Plant Leaves
genêtic variation
030104 developmental biology
Enzyme
Biochemistry
chemistry
diversité génétique
métabolomique
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 10404651 and 1532298X
- Database :
- OpenAIRE
- Journal :
- The Plant cell, The Plant cell, American Society of Plant Biologists (ASPB), 2017, 29 (5), pp.919-943. ⟨10.1105/tpc.16.00613⟩, Plant Cell, Plant Cell, American Society of Plant Biologists, 2017, 29 (5), pp.919-943. ⟨10.1105/tpc.16.00613⟩
- Accession number :
- edsair.doi.dedup.....b6e42ccc3f440d110b34cd830e3136f7