TY  - JOUR
A1  - Meyer, Rhonda C.
A1  - Witucka-Wall, Hanna
A1  - Becher, Martina
A1  - Blacha, Anna Maria
A1  - Boudichevskaia, Anastassia
A1  - Dörmann, Peter
A1  - Fiehn, Oliver
A1  - Friedel, Svetlana
A1  - von Korff, Maria
A1  - Lisec, Jan
A1  - Melzer, Michael
A1  - Repsilber, Dirk
A1  - Schmidt, Renate
A1  - Scholz, Matthias
A1  - Selbig, Joachim
A1  - Willmitzer, Lothar
A1  - Altmann, Thomas
T1  - Heterosis manifestation during early Arabidopsis seedling development is characterized by intermediate gene expression and enhanced metabolic activity in the hybrids
JF  - The plant journal
N2  - 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.
KW  - heterosis
KW  - seedlings
KW  - metabolite profiling
KW  - transcript profiling
KW  - morphological analysis
KW  - Arabidopsis thaliana
KW  - biomass
Y1  - 2012
U6  - https://doi.org/10.1111/j.1365-313X.2012.05021.x
SN  - 0960-7412
VL  - 71
IS  - 4
SP  - 669
EP  - 683
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - CHAP
A1  - Rojahn, Marcel
A1  - Gronau, Norbert
ED  - Bui, Tung X.
T1  - Openness indicators for the evaluation of digital platforms between the launch and maturity phase
T2  - Proceedings of the 57th Annual Hawaii International Conference on System Sciences
N2  - In recent years, the evaluation of digital platforms has become an important focus in the field of information systems science. The identification of influential indicators that drive changes in digital platforms, specifically those related to openness, is still an unresolved issue. This paper addresses the challenge of identifying measurable indicators and characterizing the transition from launch to maturity in digital platforms. It proposes a systematic analytical approach to identify relevant openness indicators for evaluation purposes. The main contributions of this study are the following (1) the development of a comprehensive procedure for analyzing indicators, (2) the categorization of indicators as evaluation metrics within a multidimensional grid-box model, (3) the selection and evaluation of relevant indicators, (4) the identification and assessment of digital platform architectures during the launch-to-maturity transition, and (5) the evaluation of the applicability of the conceptualization and design process for digital platform evaluation.
KW  - federated industrial platform ecosystems
KW  - technologies
KW  - business models
KW  - data-driven artifacts
KW  - design-science research
KW  - digital platform openness
KW  - evaluation
KW  - morphological analysis
Y1  - 2024
SN  - 978-0-99813-317-1
SP  - 4516
EP  - 4525
PB  - Department of IT Management Shidler College of Business University of Hawaii
CY  - Honolulu, HI
ER  -