Combining ability analysis of seven silk yield attributes in silkworm, Bombyx mori L.

• Autorzy: Bhargava S K
• Języki publikacji: EN

Abstrakty

EN

The combining ability effects of five silkworm (Bombyx mori L.) strains and their 20 F₁'s including reciprocals were analysed in a 5x5 diallel cross for seven silk yield attributes, viz. effective rate of rearing (ERR), a measure of survival, cocoon yield, cocoon weight, shell weight, raw silk percentage, silk filament length/cocoon and silk reelability. Higher values of specific combining ability (SCA) than the corresponding general combining ability (GCA) for all the attributes except ERR and cocoon yield are indicative of non-additive gene action. The parental strain JC2P was the best general combiner for all the attributes, except cocoon yield. The highest general combining ability effect for cocoon yield was shown by N4. The highest desirable or positive SCA effects resulted from N4 × SH2 (all the attributes except shell weight), JC2P × 14M (all the attributes except cocoon weight and shell weight), 14M × SH2 (all the attributes except ERR), N4 × SPJ1 (all the attributes except shell weight and raw silk percentage). Only one reciprocal, namely SPJ1 × N4, showed positive effects for all the attributes except silk reelability. The improvement of cocoon yield through mass selection followed by intermating and the use of the parental strain JC2P in future cross breeding are discussed.

Słowa kluczowe

EN

silkworm; silk yield; Bombyx mori; combining ability

• Wydawca: -
• Czasopismo: Journal of Applied Genetics
• Rocznik: 1995
• Tom: 36
• Numer: 1
• Opis fizyczny: p.59-67

Twórcy

autor

Bhargava S K

• Central Sericultural Research and Training Institute, Srirampuram, Manandavadi Road, Mysore-570 008, Karnataka, India

Bibliografia

• BAKER R.J. (1978). Issues in diallel analysis. Crop. Sci. 18: 533-536.
• BHARGAVA S.K., THIAGARAJAN V., RAMESHBABU M., NAGARAJ B. (1992). Combining ability and genetic analysis of quantitative traints in silkworm (Bombyx mori L.). J. Genet. Breed. 46: 327-330.
• BHARGAVA S.K., THIAGARAJAN V., RAMESHBABU M., NAGARAJ B. (1993). Heritability of quantitative characters in silkworm (Bombyx mori). Indian J. Agri. Sci. 63: 358-362.
• CHATTERJEE S.N., DATTA R.K. (1993). Hierarchial clustering of 54 races and strains of the mulberry silkworm, Bombyx mori L.: Significance of biochemical parameters. Theor. Appl. Genet. 85: 395-402.
• CHAWLA H.S., GUPTA V.P. (1982). Combining ability anlaysis of oxalicacid minerals and green fodder yield in pearl millet. Theor. Appl. Genet. 61: 109-112.
• CHERRY R.H. (1987). History of sericulture. Bull. EntomoI. Soc. Amer. 33: 83-84.
• CURRIE R. (1991). Silk in the nineties. Sericologia 31: 95-102.
• DATTA R.K., PERSHAD G.D. (1987). Combining ability among multivoltine × bivoltine silkworm (Bombyx mori L.). Sericologia 27: 21-29.
• GRIFFING B. (1956). Concept of general and specific combining ability in relation to diallel crossing systems. Aust. J. Biol. Sci. 9: 463-493.
• JAIMINI S.N., MATHUR J.R. (1980). Combining ability analysis for grain yield and its components in wheat (Triticum aestivum L.). Genet. Pol. 21: 161-171.
• KRISHNASWAMI S., JOLLY M.S., SUBBARAO S. (1964). Diallel analysis of quantitative characters in multivoltine races of silkworm. Indian J. Genet. 24: 213-222.
• NAWAR A.A., GOMAA M.E., RADY M.S. (1980). Heterosis and combining ability in maize. Egypt. J. Genet. Cytol. 9: 255-267.
• PERSHAD G.D., DATTA R.K., BHARGAVA S.K., VIJAYAKUMAR H.V., JOLLY M.S. (1986a). Combining ability in multivoltine races of silkworm Bombyx mori L. Sericologia 26: 307-315.
• PERSHAD G.D., DATTA R.K., VIJAYAKUMAR H.V., BHARGAVA S.K., JOLLY M.S. (1986b). Performance of some multivoltine races of Bombyx mori L. Sericologia 26: 295-301.
• PETKOV N. (1975). Investigation on the combining ability of some inbred lines of Bombyx mori L. Genet. Sel. 8: 128-136.
• PETKOV N. (1978). Variation of cocoon silk in some inbred silkworm (Bombyx mori) lines. Genet. Sel. 11: 420-426.
• PETKOV N. (1981). Variability and correlations between some characteristic features of silkworm (Bombyx mori). Animal Sci. 18: 83-86.
• PETKOV N., NACHEVA Y., MLADENOV G., AKIMENKO L., BRASLAVSKIYA M., STOTSKIY M., SCHUKIN A.R. (1984). Evaluation of the combining ability of promising Bulgarian and Ukrainian silkworm (Bombyx mori) breeds. 2. On the basis of diallel cross breeds. Animal Sci. 21: 100-107.
• REDDEN R.J., JENSEN N.F. (1974). Mass selection and mating systems in cereals. Crop. Sci. 14: 345-350.
• SENGUPTA K., YUSUF M.R., GROVER S.P. (1974). Hybrid vigour and genetic analysis of quantitative traits in silkworm. Indian J. Genet. (SABRAO). 34A: 249-256.
• SMITH G.A., HECKER R J., MAAG G.W., RASMUSON D.M. (1973). Combining ability and gene action estimates in eight parent diallel cross of sugarbeet. Crop Sci. 13: 312-316.
• SONWALKAR T.N. (1985). Silk reeling and handicrafts. Sericologia 25: 183-205.
• SRIVASTAVA H.M., KAPUR R., SRIVASTAVA B.L. (1986). Heterosis, combining ability and gene action in a seven parent diallel in sugarbeet. Indian J. Genet. 46: 484-489.
• THIAGARAJAN V., BHARGAVA S.K., RAMESHBABU M., NAGARAJ B. (1993a). Differences in seasonal performance of twenty-six strains of silkworm Bombyx mori (Bombycidae). J. Lepidopter Soc. Amer. 47: 331-337.
• THIAGARAJAN V., BHARGAVA S.K., RAMESHBABU M., NAGARAJ B. (1993b). Performance of bivoltine breeds of silkworm under high altitude conditions. Sericologia 33: 559-565
• TRIPATHI B.K., SINGH R.R., SRIVASTAVA H.M., SRIVASTAVA B.L., MISRA G.P. (1979). Heterosis and combining ability studies in sugarbeet (Beta vulgaris L.). Indian J. Sugarcane Technol. 2: 59-63.