Genetical analysis on numbers of antennal parts in the silkworm moth bombyx mori

Takei, R.; Xiang, Z.; Nakagaki, M.; Nagashima, E.

Journal of Sericultural Science of Japan 58(6): 457-462


Accession: 007375598

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The numbers of antennal parts in the silkworm were analyzed genetically. We have selected two strains which have a large and a small number of antennal parts and made their F1, F2 and backcross individuals. The results obtained were as follows. 1) Formation of antennal parts is controlled by incomplete dominant genes located on the sex (X) and autosomal chromosomes. 2) Fixable gene components and environmental factors are relatively small but unfixed ones are very large. 3) The fixable variation-heritable tends to show a more large value in male than in female.