Chromosome Variation in the Progeny of Triploid Lilium tigrinum

Abstract

The ferst generation progeny raised from the seeds obtained by seif- and inter-pollinations of the triploid Lilium tigrinum have been examined with a view of obtaining evidente of variation of their chromosome complements. The plants examined varied markedly in their somatic numbers representing all the numbers between 24 and 39, except 31. Beside these, there were found a number of plants with fragments, i.e. 25+f, 26+f, 27+f and 28+f. The karyotypes were analyzed from the stand point of large V-chromosomes, which showed that the karyotypes were not uniform in these plants.
The writer is deeply indebted to Dr. Y. Sinotô who has given him kind advice and criticism. Thanks are also due to Dr. Y. Takenaka who kindly gave him some material for the present study.