カイコの濃核病ウイルスに対する感染抵抗性とその遺伝様式

概要

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One of the most resistant and nonsusceptible strains to peroral infection with a Bombyx densonucleosis virus (DNV) was C-124, while N-124 strain was highly susceptible. The mode of inheritance of resistance as shown in C-124 was investigated with individuals of the F1, F2 and backcrossed hybrids obtained from crosses between the two inbred strains, C-124 and N-124. The results of the test revealed that susceptibilities of the reciprocal F1 hybrids of C-124×N-124 and the backcrossed hybrids to N-124 were nearly the same as that of N-124, whereas the F2 and the backcrossed hybrids to C-124 showed much lower susceptibilities than N-124. Comparative analyses of the log virus dosage-percent infection (probit) lines among those hybrids indicated that the resistance in C-124 strain was inherited as being controlled by a recessive major-gene.
日本蠶絲學會の論文