ON ACCESSORY CHROMOSOMES IN SECALE CEREALE (II) The inheritance of accessory chromosomes in rye.

호밀의 부속염색체의 유전

1. Number of accessory chromosomes in the progenies of rye which were obtained from mother plants having 2, 4, and 6 accessory chromosomes by open pollination were observed. The result was shown in the Table 1. 2. Cross between the plant with 14 ordinary chromosomes having chromsome breakage and normal plant with 14 ordinary chromosomes was carried out. A plant among the progeny of this cross was found to have two accessory chromosomes in addition to 14 ordinary chromosomes. This phenomenon may be useful to postulzte the possible origin of accessory chromosome in rye.