NEW MUTANTS, TESTS OF ALLELISM, AND LINKAGE DATA A. New Mutants 1. Report of A. E. Bell Tribolium castaneum Antennapedia (ap), Englert, 1962. Autosomal recessive, spontaneous in Sa stock. Complete penetrance with variable expressivity. Phenotypic expression varies from partial fusion of 9th and 10th distal segments, with tarsal claws arising from 11th segment, to the replacement of the medial and club segments by a complete tarsus. Is easily identified in larval and pupal stages as well. Good viability and fertility. Linkage tests have been completed to all known linkage groups and to ivory (see TIB 5). Results of the tests revealed no apparent linkage to any of the linkage groups. "Antennapedia" is therefore being tentatively assigned to Linkage Group VIII. 2. Report of C. E. Dyte and Miss D. G. Blackman Tribolium castaneum bronze. Body colour darker than normal but not black. Probably autosomal recessive as mating with normal strain yielded a normal F1 and an F2 of 405 normal and 136 bronze. Viability and penetrance apparently good. From a stock originating in Australia. May be a re-occurrence of sooty or cordovan so no symbol proposed at present. Oryzaephilus surinamensis (Silvanidae) pearl. Phenotype similar to pearl in other species. Genetics not yet studied. From a culture originating in Australia. 3. Report of A. Sokoloff Tribolium castaneum 1. Antennapedia (apD). Dawson, 1962. See note by Dawson in Research Note section, and the front cover of this issue of TIB.
NEW MUTANTS, TESTS OF ALLELISM, AND LINKAGE DATA A. New Mutants 1. Report of A. E. Bell Tribolium castaneum Antennapedia (ap), Englert, 1962. Autosomal recessive, spontaneous in Sa stock. Complete penetrance with variable expressivity. Phenotypic expression varies from partial fusion of 9th and 10th distal segments, with tarsal claws arising from 11th segment, to the replacement of the medial and club segments by a complete tarsus. Is easily identified in larval and pupal stages as well. Good viability and fertility. Linkage tests have been completed to all known linkage groups and to ivory (see TIB 5). Results of the tests revealed no apparent linkage to any of the linkage groups. "Antennapedia" is therefore being tentatively assigned to Linkage Group VIII. 2. Report of C. E. Dyte and Miss D. G. Blackman Tribolium castaneum bronze. Body colour darker than normal but not black. Probably autosomal recessive as mating with normal strain yielded a normal F1 and an F2 of 405 normal and 136 bronze. Viability and penetrance apparently good. From a stock originating in Australia. May be a re-occurrence of sooty or cordovan so no symbol proposed at present. Oryzaephilus surinamensis (Silvanidae) pearl. Phenotype similar to pearl in other species. Genetics not yet studied. From a culture originating in Australia. 3. Report of A. Sokoloff Tribolium castaneum 1. Antennapedia (apD). Dawson, 1962. See note by Dawson in Research Note section, and the front cover of this issue of TIB.
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