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At 7:45 AM -0800 11/5/14, Paul MacDonald wrote:
>An interesting plant and a good photo Burkhard.
>I've seen a lot of blue ones but never a white one.
>A very useful if underappreciate plant in NS.
>I wonder if this plant is a triploid.
It's a perennial diploid, Paul, but it is tristylous, a fairly rare
mating system that has three anther and stigma lengths rather than
the "pin and thrum" of diploid systems. See
http://labs.eeb.utoronto.ca/barrett/pdf/schb_23.pdf for more.
The flower colour heritability has been investigated and blue is
completely dominant to white (two alleles at a single locus). See
http://www.ncbi.nlm.nih.gov/pubmed/17709555 for more.
Phil
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Phil Schappert, PhD
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