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Komplementation von Genexpressionsmustern in Maishybriden



Heterosis describes the superior performance of F1-hybrids compared to their genetically distinct parents, a phenomenon which is extensively exploited in maize breeding. To better understand the molecular basis of heterosis in maize, we analyzed how the genetic diversity of parental inbred lines affects the root transcriptome of their F1-progeny. We discovered complementation of activity in evolutionary younger genes and as a consequence more active genes in hybrids than in parental inbred lines.

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Correspondence to Frank Hochholdinger.

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Caroline Marcon 2001–2007 Biologiestudium (Diplom) an der Universität Tübingen, dort 2012 Promotion. Seit 2012 wissenschaftliche Assistentin an der Universität Bonn.

Jutta A. Baldauf 2008–2011 Bachelorstudium in Agrarbiologie an der Universität Hohenheim, dort 2011–2014 Masterstudium in Crop Sciences. Seit 2014 Promotionsstudium an der Universität Bonn.

Frank Hochholdinger 1989–1995 Biologiestudium (Diplom) an der Universität Freiburg, dort 1999 Promotion. 1999–2001 Postdoktorand an der Iowa State University, USA. 2001–2010 Leiter einer unabhängigen Forschungsgruppe am Zentrum für Molekularbiologie der Pflanzen (ZMBP) der Universität Tübingen. Seit 2010 W3-Professur für funktionelle Genomik der Nutzpflanzen (Crop Functional Genomics) an der Universität Bonn.

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Marcon, C., Baldauf, J.A. & Hochholdinger, F. Komplementation von Genexpressionsmustern in Maishybriden. Biospektrum 22, 603–605 (2016).

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