テントウムシHarmonia axyridis Pallasの遺傳學的研究 (第VII報)

抄録

1. In this report three subtypes of axyridis, axyridis-1 (Figs. 2, 3), axyridis-2 (Figs. 4-7) and axyridis-3 (Figs. 8-10), and two subtypes of aulica, aulica-1 (Fig. 11) and aulica-2 (Fig. 12), are dealt with. Each of these subtypes is due to a factor (P^A-1=factor for axyridis-1, P^A-2 =factor for axyridis-2, P^A-3 = factor for axyridis-3 , P^Au-1 =factor for aulica-1 and P^Au-2=factor for aulica-2) belonging to the same allelomorphic series as conspicua (P^C), gutta (P^G), distincta (PD), transversifascia (P^T), spectabilis (P^S), rostrata (P^R), forficula (P^F), succinea-1 (p¹), succinea-2 (p²), succinea-3 (p³), succinea-4 (p⁴), succinea-5 (p⁵) and succinea-6 (p⁶) .
2. The homozygotes of both axyridis-1 and axyridis-3 die, but the heterozygote of axyridis-1 and axyridis-3 are viable and fertile. Thus both the genes have a lethal effect in the homozygous state, or else they are closely linked with a lethal gene.
3. The homozygotes between the three subtypes of axyridis and succinea-1 (or 2) showing no black spot at 30°C, can be distinguished from one another by the mode of confluence of the individual orange spots if bred at 30°C.
4. Aulica-1 which can be separated from aulica-2 by having no black indentation along the median of the elytra, behaves as a sh-nple recessive to aulica-2.