Manifestation of the dilute black (bd) mutation and constitution of the bd locus in Bombyx mori

Yutaka Kawaguchi, Takahiro Kusakabe, Jae Man Lee, Katsumi Koga

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4 Citations (Scopus)


A Bombyx mori mutant named dilute black (bd), which has the multiple alleles bd, bdsw and bdf, each affecting both the larval body color and female fertility, was investigated for the manifestation of these pleiotropic traits by mating experiments with the k40, k42 and k452 strains harboring bd, bdsw and bdf, respectively, in the heterozygous state. It was shown that bd, bdsw and bdf were strong, intermediate and weak, respectively, in the degree of larval body color. On the other hand, bd and bdsw were identical to each other in terms of female sterility, whereas bdf was as fertile as normal. The degree of body color and the female sterility showed a high parallelism with each other. On the basis of these results, we proposed that the bd locus consists of closely linked two domains, one for the larval body color and the other for the female fertility.

Original languageEnglish
Pages (from-to)355-359
Number of pages5
JournalJournal of the Faculty of Agriculture, Kyushu University
Issue number2
Publication statusPublished - Oct 2007

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science


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