D. De Winton
Articles written in Journal of Genetics
Volume 13 Issue 2 August 1923 pp 219-253
Volume 24 Issue 1 February 1931 pp 121-144
An account is given of six types of linkage observed between three pairs of factors in the tetraploid
The intensity of linkage is nearly, but not quite, the same in the tetraploid as in the diploid. It is the same on the two sides in the tetraploid.
As regards the factors considered, there is no evidence of crossingover involving more than two chromosomes at a time, or of two chromosomes going to the same pole after crossing-over.
The six readily available gametic series contain only one adjustable constant
Volume 27 Issue 1 March 1933 pp 1-44
Volume 31 Issue 1 June 1935 pp 67-100
1. Fifteen factors have been located on four out of the twelve chromosomes. Some other linkages are suspected, and a new case of multiple allelomorphism or very close linkage is described.
2. As compared with
3. In two regions linkage is tighter on the male than on the female side, in two looser, while in two others it is nearly the same. Apart from this the figures are inadequate for a judgment.
4. In one chromosome the genetical data from the tetraploid permit the rough location of a spindle attachment.
5. The linkage values found in different families show a remarkable constancy.
6. New mathematical methods are given for dealing with goodness of fit, combination of linkage data, and allowance for double cross-overs when mapping.
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