Abstract
NEARLY thirty years ago attention was directed by N. Barlow1 to the genetic problem presented by the inheritance of style length in the trimorphic heterostylic plant Lythrum salicaria. Barlow was able to show that the long-styled plants were true-breeding recessives, and that Short differed from Long and Mid plants in a single epistatic dominant factor. The hypostatic factor responsible for Mid style-length was shown to present anomalies, first in that homozygous Mids, giving, when crossed with Long, all-Mid progenies, were not found, and secondly, in the occurrence of progenies with four or more times as many Mids as Longs.
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References
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Fisher, R. A., Annals of Eugenics, 11, part 1, 31 (1941).
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FISHER, R., MATHER, K. Polyploid Inheritance in Lythrum salicaria. Nature 150, 430 (1942). https://doi.org/10.1038/150430a0
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DOI: https://doi.org/10.1038/150430a0
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