PMID- 20078869
OWN - NLM
STAT- MEDLINE
DCOM- 20100408
LR  - 20211020
IS  - 1471-2229 (Electronic)
IS  - 1471-2229 (Linking)
VI  - 10
DP  - 2010 Jan 15
TI  - Polymorphisms in monolignol biosynthetic genes are associated with biomass yield 
      and agronomic traits in European maize (Zea mays L.).
PG  - 12
LID - 10.1186/1471-2229-10-12 [doi]
AB  - BACKGROUND: Reduced lignin content leads to higher cell wall digestibility and, 
      therefore, better forage quality and increased conversion of lignocellulosic 
      biomass into ethanol. However, reduced lignin content might lead to weaker 
      stalks, lodging, and reduced biomass yield. Genes encoding enzymes involved in 
      cell wall lignification have been shown to influence both cell wall digestibility 
      and yield traits. RESULTS: In this study, associations between monolignol 
      biosynthetic genes and plant height (PHT), days to silking (DTS), dry matter 
      content (DMC), and dry matter yield (DMY) were identified by using a panel of 39 
      European elite maize lines. In total, 10 associations were detected between 
      polymorphisms or tight linkage disequilibrium (LD) groups within the COMT, 
      CCoAOMT2, 4CL1, 4CL2, F5H, and PAL genomic fragments, respectively, and the above 
      mentioned traits. The phenotypic variation explained by these polymorphisms or 
      tight LD groups ranged from 6% to 25.8% in our line collection. Only 4CL1 and F5H 
      were found to have polymorphisms associated with both yield and forage quality 
      related characters. However, no pleiotropic polymorphisms affecting both 
      digestibility of neutral detergent fiber (DNDF), and PHT or DMY were discovered, 
      even under less stringent statistical conditions. CONCLUSION: Due to absence of 
      pleiotropic polymorphisms affecting both forage yield and quality traits, 
      identification of optimal monolignol biosynthetic gene haplotype(s) combining 
      beneficial quantitative trait polymorphism (QTP) alleles for both quality and 
      yield traits appears possible within monolignol biosynthetic genes. This is 
      beneficial to maximize forage and bioethanol yield per unit land area.
FAU - Chen, Yongsheng
AU  - Chen Y
AD  - Department of Agronomy, Iowa State University, Ames, IA 50011, USA.
FAU - Zein, Imad
AU  - Zein I
FAU - Brenner, Everton Alen
AU  - Brenner EA
FAU - Andersen, Jeppe Reitan
AU  - Andersen JR
FAU - Landbeck, Mathias
AU  - Landbeck M
FAU - Ouzunova, Milena
AU  - Ouzunova M
FAU - Lubberstedt, Thomas
AU  - Lubberstedt T
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20100115
PL  - England
TA  - BMC Plant Biol
JT  - BMC plant biology
JID - 100967807
RN  - 0 (DNA, Plant)
RN  - 0 (Plant Proteins)
RN  - 9005-53-2 (Lignin)
SB  - IM
MH  - *Biomass
MH  - Cell Wall/metabolism
MH  - Crops, Agricultural/genetics
MH  - DNA, Plant/genetics
MH  - Genetic Association Studies
MH  - Lignin/*biosynthesis
MH  - Linkage Disequilibrium
MH  - Phenotype
MH  - Plant Proteins/*genetics/metabolism
MH  - Quantitative Trait, Heritable
MH  - Sequence Analysis, DNA
MH  - Zea mays/enzymology/*genetics
PMC - PMC2827421
EDAT- 2010/01/19 06:00
MHDA- 2010/04/09 06:00
PMCR- 2010/01/15
CRDT- 2010/01/19 06:00
PHST- 2009/06/04 00:00 [received]
PHST- 2010/01/15 00:00 [accepted]
PHST- 2010/01/19 06:00 [entrez]
PHST- 2010/01/19 06:00 [pubmed]
PHST- 2010/04/09 06:00 [medline]
PHST- 2010/01/15 00:00 [pmc-release]
AID - 1471-2229-10-12 [pii]
AID - 10.1186/1471-2229-10-12 [doi]
PST - epublish
SO  - BMC Plant Biol. 2010 Jan 15;10:12. doi: 10.1186/1471-2229-10-12.