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@ARTICLE{Meyer:21063,
author = {Meyer, R.C. and Witucka-Wall, H. and Becher, M. and Blacha,
A. and Boudichevskaia, A. and Dörmann, P. and Fiehn, O. and
Friedel, S. and von Korff, M. and Lisec, J. and Melzer, M.
and Repsilber, D. and Schmidt, R. and Scholz, M. and Selbig,
J. and Willmitzer, L. and Altmann, T.},
title = {{H}eterosis manifestation during early {A}rabidopsis
seedling development is characterized by intermediate gene
expression and enhanced metabolic activity in the hybrids},
journal = {The plant journal},
volume = {71},
issn = {0960-7412},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {PreJuSER-21063},
pages = {669 - 683},
year = {2012},
note = {This work was supported by research grants from the
Deutsche Forschungsgemeinschaft (SPP1149), the European
Commission Framework Programme 6 Integrated Project:
AGRON-OMICS (LSHG-CT 2006-037704), the German Ministry for
Education and Research (GoFORSYS, GABI-OIL 0315053G) and the
Max Planck Society.},
abstract = {Heterosis-associated cellular and molecular processes were
analyzed in seeds and seedlings of Arabidopsis thaliana
accessions Col-0 and C24 and their heterotic hybrids.
Microscopic examination revealed no advantages in terms of
hybrid mature embryo organ sizes or cell numbers. Increased
cotyledon sizes were detectable 4 days after sowing. Growth
heterosis results from elevated cell sizes and numbers, and
is well established at 10 days after sowing. The relative
growth rates of hybrid seedlings were most enhanced between
3 and 4 days after sowing. Global metabolite profiling and
targeted fatty acid analysis revealed maternal inheritance
patterns for a large proportion of metabolites in the very
early stages. During developmental progression, the
distribution shifts to dominant, intermediate and heterotic
patterns, with most changes occurring between 4 and 6 days
after sowing. The highest incidence of heterotic patterns
coincides with establishment of size differences at 4 days
after sowing. In contrast, overall transcript patterns at 4,
6 and 10 days after sowing are characterized by intermediate
to dominant patterns, with parental transcript levels
showing the largest differences. Overall, the results
suggest that, during early developmental stages,
intermediate gene expression and higher metabolic activity
in the hybrids compared to the parents lead to better
resource efficiency, and therefore enhanced performance in
the hybrids.},
keywords = {J (WoSType)},
cin = {IBG-2},
ddc = {580},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Plant Sciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:22487254},
UT = {WOS:000307169600012},
doi = {10.1111/j.1365-313X.2012.05021.x},
url = {https://juser.fz-juelich.de/record/21063},
}