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Characterization of European forage maize lines for stover composition and associations with polymorphisms within O-methyltransferase genes.
- Source :
-
Plant science : an international journal of experimental plant biology [Plant Sci] 2012 Apr; Vol. 185-186, pp. 281-7. Date of Electronic Publication: 2011 Dec 06. - Publication Year :
- 2012
-
Abstract
- Cell wall components, such as lignin, cellulose, and hemicelluloses, play an important role in the conversion efficiency of corn stover into ethanol. Understanding the molecular basis of cell wall formation is fundamental for marker assisted selection to develop lines more suitable for ethanol production. In this study, we evaluated a set of 40 European forage maize lines for cellulose, lignin, total hemicellulose, glucuronoarabinoxylan (GAX), and monosaccharides, such as arabinose (ara), xylose (xyl), and glucuronic acid (GlcA). The most significant correlations were observed between hemicelluloses and GAX (0.9), and hemicelluloses and cellulose (-0.81). Cell wall digestibility (CWD, estimated by digestible neutral detergent fiber, DNDF) was negatively correlated with Xyl (-0.34). The association analysis between the evaluated traits and polymorphisms within ten "lignin" genes revealed significant associations between polymorphisms within CCoAOMT1, CCoAOMT2, 4CL2 and C4H, and cellulose/xyl, cellulose, cellulose, and GclA, respectively. None of the QTPs identified in this study corresponded to previously reported CWD QTPs.<br /> (Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.)
- Subjects :
- Breeding
Cell Wall metabolism
Cellulose analysis
Cellulose metabolism
Chromosome Mapping
Ethanol metabolism
Lignin analysis
Linkage Disequilibrium
Methyltransferases metabolism
Monosaccharides analysis
Monosaccharides metabolism
Phenotype
Plant Proteins genetics
Plant Proteins metabolism
Polysaccharides analysis
Quantitative Trait Loci
Xylans analysis
Zea mays metabolism
Lignin metabolism
Methyltransferases genetics
Polymorphism, Genetic genetics
Polysaccharides metabolism
Xylans metabolism
Zea mays genetics
Subjects
Details
- Language :
- English
- ISSN :
- 1873-2259
- Volume :
- 185-186
- Database :
- MEDLINE
- Journal :
- Plant science : an international journal of experimental plant biology
- Publication Type :
- Academic Journal
- Accession number :
- 22325891
- Full Text :
- https://doi.org/10.1016/j.plantsci.2011.11.016