Inheritance of peroxidase isozymes in mulberry (Morus spp.) |
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| Authors: | Hisashi Hirano Keisaku Naganuma |
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| Institution: | (1) Moriculture Division, Sericultural Experiment Station, M.A.F.F., Wada, Suginami-ku, 166 Tokyo, Japan |
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| Abstract: | Summary Electrophoretic variants of peroxidase in mulberry (Morus spp.) were demonstrated by thin-layer gel isoelectric focusing. Of these variants, three isozyme band groups were found to be controlled by codominant alleles at a single locus. The gene symbol Px
1 was given to this locus, with alleles Px
1
1 and Px
1
2 assigned to the A6-A7-A8 and A7-A8-A9 band groups, respectively. The A6-A7-A8-A9 band group proved to be controlled by the Px
1
1 and Px
1
2 heterozygote.Additional experiments showed that among the three banding types, there were no statistically significant differences in leaf blade length, leaf blade width, length-width ratio of leaf blade, internode length, phyllotaxis, leaf shape, tree vigor and resistance to powdery mildew, but there were significant differences in leafstalk length. |
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| Keywords: | Peroxidase isozyme Morus spp mulberry genetic analysis gel isoelectric focusing |
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