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Research Article

Carotenoid Crystal Formation in Arabidopsis and Carrot Roots Caused by Increased Phytoene Synthase Protein Levels

  • Dirk Maass,

    Affiliation: Faculty of Biology, Cell Biology, University of Freiburg, Freiburg, Germany

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  • Jacobo Arango,

    Affiliation: Faculty of Biology, Cell Biology, University of Freiburg, Freiburg, Germany

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  • Florian Wüst,

    Affiliation: Faculty of Biology, Cell Biology, University of Freiburg, Freiburg, Germany

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  • Peter Beyer,

    Affiliation: Faculty of Biology, Cell Biology, University of Freiburg, Freiburg, Germany

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  • Ralf Welsch mail

    ralf.welsch@biologie.uni-freiburg.de

    Affiliation: Faculty of Biology, Cell Biology, University of Freiburg, Freiburg, Germany

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  • Published: July 28, 2009
  • DOI: 10.1371/journal.pone.0006373

Reader Comments (1)

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Domesticated / selected

Posted by Berruyer on 24 Feb 2012 at 08:19 GMT

Orange carrots are believed to have been domesticated from white cultivars in the 16th century
http://plosone.org/article/info:doi/10.1371/journal.pone.0006373#article1.body1.sec3.sec4.p3

I do not think that the world "domesticated" is the most appropriate here. According to ref 53, orange and white carrots were selected separately from already domesticated carrots that were yellow. Carrot domestication did not occur in XVIth century Holland, but in Xth xentury central asia. At that time, domesticated carrots where purple or yellow.

No competing interests declared.