Articles written in Journal of Genetics
Volume 12 Issue 3 December 1922 pp 217-240
Volume 13 Issue 1 March 1923 pp 125-131
Volume 16 Issue 2 January 1926 pp 125-188
Volume 17 Issue 3 January 1927 pp 221-251
The present investigation deals with the interrelationship of fifteen pairs of easily distinguishable characters in
Four linkage groups have been found among these fifteen pairs of factors, one containing three, the rest of them two factors respectively. One is the wrinkled-acacia case, well-known from early experiments in
Five of the remaining six factors were tested with the factors of the four groups as well as among themselves, and no linkage could be detected. As regards the sixth factor it has so far been found to be independent of the groups and of four of the single factors: one combination remains, however, to be tested.
The fifteen characters, therefore, appear to fall into four linkages plus five (possibly six) independent factors, giving in all nine independent groups, whereas from the chromosomal number seven only would be expected. No satisfactory explanation can so far be given as to the cause of this disagreement.
In somatic divisions one pair of the chromosomes was found to be segmented, having what Nawaschin has termed trabant chromosomes.
Volume 23 Issue 3 December 1930 pp 447-509
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