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  • Meyer, Rhonda CLeibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany (author)

Heterosis manifestation during early Arabidopsis seedling development is characterized by intermediate gene expression and enhanced metabolic activity in the hybrids

  • Article/chapterEnglish2012

Publisher, publication year, extent ...

  • Hoboken, USA :Wiley-Blackwell,2012
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:oru-40618
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-40618URI
  • https://doi.org/10.1111/j.1365-313X.2012.05021.xDOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • 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.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Witucka-Wall, HannaDepartment of Genetics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany (author)
  • Becher, MartinaDepartment of Genetics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany (author)
  • Blacha, AnnaMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany (author)
  • Boudichevskaia, AnastassiaLeibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany (author)
  • Dörmann, PeterMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany (author)
  • Fiehn, OliverMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany (author)
  • Friedel, SvetlanaLeibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany (author)
  • von Korff, MariaDepartment of Genetics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany (author)
  • Lisec, JanMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany (author)
  • Melzer, MichaelLeibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany (author)
  • Repsilber, Dirk,1971-Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany(Swepub:oru)drr (author)
  • Schmidt, RenateLeibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany (author)
  • Scholz, MatthiasMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany (author)
  • Selbig, JoachimDepartment of Bioinformatics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany (author)
  • Willmitzer, LotharMax Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany; King Abdulaziz University, P.O., Jeddah, Saudi Arabia (author)
  • Altmann, ThomasLeibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany; Department of Genetics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany (author)
  • Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, GermanyDepartment of Genetics, Institute of Biochemistry and Biology, University of Potsdam, Potsdam-Golm, Germany (creator_code:org_t)

Related titles

  • In:The Plant JournalHoboken, USA : Wiley-Blackwell71:4, s. 669-830960-74121365-313X

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