Abstract
Cent percent allotriploids were induced by heat shocking (42°C for 3 min) of 2·5 min old (post-fertilization)Oreochromis mossambicus eggs fertilized with (homozygous) red tilapia milt. Control diploid hybrids were red (orange) in colour. A few triploid hybrids displayed more patches of black pigmentation. Hence red and black colours are regarded as co-dominants. Survival of the allotriploids was higher than that ofOreochromis mossambicus autotriploids.
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References
Arai K 1984 Developmental genetic studies on salmonids: morphogenesis, isozyme phenotypes and chromosomes in hybrid embryos;Mem. Fac. Fish. Hokkaido Univ. 31 1–94
Arai K 1986 Effect of allotriploidization on development of the hybrids between female chum salmon and male brook trout;Bull. Jpn. Soc. Fish. 52 823–829
Capanna E, Cataudella S and Volpe R 1974 Un ibrido intergenerico tra trota iridea e salmerino di fonte (Salmo gairdneri × Salvelinus fontinalis);Boll. Pesca Piscic. Idrobiol. 29 101–106
Chevassus B, Guyomard R, Chourrout D and Quillet E 1983 Production of viable hybrids in salmonids by triploidization;Genet Sel. Evol. 15 519–532
Crockrum E L and McCauley W J 1964Zoology (Philadelphia: W B Saunders)
Das P, Mukopadhyay M K, Das K M and Pandit P K 1987 Gonadal sex manipulation ofOreochromis mossambicus (Peters);Proc. World Symp. on Selection Hybridization and Genetic Engineering in Aquaculture, Bordeaux, Berlin, pp 74–78
Donaldson E M and Benfey T J 1987 Current status of induced sex manipulation;Proc. Third Int. Symp. Reproductive Physiol. Fish, Memorial Univ. of Newfoundland, St John’s, Canada, pp 108–119
Fankhauser G 1945 The effect of changes in chromosome number on amphibian development;Q. Rev. Biol. 20 20–78
Hickling C F 1963 The cultivation of Tilapia;Sci. Am. 208 143–152
Huang C M, Chang S L, Cheng H J and Liao I C 1988 Single gene inheritance of red body coloration in Taiwanese red tilapia;Aquaculture 74 227–232
Hulata G, Rothbard S and Wohlfarth G 1981 Genetic approach to the production of all-male progeny of tilapia;Eur. Maricult. Soc. Spec. Publ. 6 181–190
Hulata G, Wohlfarth G and Rothbard S 1983 Progeny-testing selection of tilapia broodstocks producing all-male hybrid progenies—preliminary results;Aquaculture 33 263–268
John G, Reddy P V G K and Gupta S D 1984 Artificial gynogenesis in two Indian major carps.Labeo rohita (Ham.) andCatla catla (Ham.);Aquaculture 42 161–168
Klingerman A D and Bloom S E 1977 Rapid chromosome preparation from solid tissues of fishes:J. Fish. Res. Board Can. 34 266–269
Lovshin L L 1982 Tilapia hybridization; inThe biology and culture of Tilapia (eds) R S V Pullin and R H Lowe-McConnel (ICLARM Symp. Proc., Manila) vol. 7, pp 279–308
Mires D 1988 The inheritance of black pigmentation inOreochromis nilotieus from two African origins; inThe Second Int. Symp. on Tilapia in Aquaculture (eds) R S V Pullin, T Bhykasawan, K Tonguthai and J L Maclean (ICLARM Conference Proc., Manila) vol. 15, pp 237–241
Pandian T J and Varadaraj K 1987 Techniques to regulate sex ratio and breeding in tilapia;Curr. Sci. 56 337–343
Pandian T J and Varadaraj K 1988 Techniques for producing all-male and all-triploidOreochromis mossambicus; inThe Second Int. Symp. on Tilapia in Aquaculture (eds) R S V Pullin, T Bhykasawan, K Tenguthai and J L Maclean (ICLARM Conference Proc., Manila) vol. 15, pp 243–249
Scheerer P D and Thorgaard G H 1983 Increased survival in salmonid hybrids by induced triploidy;Can. J. Fish. Aquat. Sci. 40 2040–2044
Streisinger G, Walker C, Dower N, Knauber D and Singer F 1981 Production of clones of homozygous diploid zebra fish (Brachydanio rerio);Nature (London) 29 293–296
Swarup H 1959 Production of triploidy inGasterosteus aculeatus;J. Genet. 56 129–142
Thorgaard G H 1983 Chromosome set manipulation and sex control in fish;Fish Physiol. B9 405–434
Thorgaard G H and Allen S K Jr 1987 Chromosome manipulation and markers in fishery management; inPopulation genetics and fishery management (eds) N Ryman and F Utter (Washington Sea Grant Program, Seattle) pp 319–331
Uyeno T 1972 Chromosomes of offspring resulting from crossing coho salmon and brook trout;J. Ichthyol. 19 166–171
Varadaraj K and Pandian T J 1988 Induction of triploids inOreochromis mossambicus by thermal, hydrostatic pressure and chemical shocks;Proc. Int. Aquaculture Cong., Vancouver, pp 531–535
Wohlfarth G W and Hulata G I 1983Applied genetics of tilapias, Studies and reviews 6, ICLARM Manila, pp 1–26
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The fish is orange in colour, however it is cited as red tilapia as is commonly known.
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Varadaraj, K., Pandian, T.J. Induction of allotriploids in the hybrids ofOreochromis mossambicus female × red tilapia male. Proc. Indian Acad. Sci. (Anim. Sci.) 98, 351–358 (1989). https://doi.org/10.1007/BF03179961
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DOI: https://doi.org/10.1007/BF03179961