International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
권호 표지

Estimation of Heterosis and Combining Ability in Hybrids between Resistant and Susceptible Bivoltine Breeds of Silkworm Bombyx mori to Densonucleosis Virus1 (BmDNV1)

  • Rao, P. Sudhakara (Central Sericultural Research and Training Institute) ;
  • Nataraju B. (Central Sericultural Research and Training Institute) ;
  • Balavenkatasubbaiah M. (Central Sericultural Research and Training Institute) ;
  • Dandin S.B. (Central Sericultural Research and Training Institute)
  • Published : 2006.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Combining ability and hybrid vigour analysis was carried out in hybrids between newly developed non-susceptible lines to BmDNV1 and popular bivoltine breeds for certain quantitative traits viz. Pupation rate, Cocoon yield, Cocoon weight, Cocoon shell weight and Cocoon shell ratio, Survival rate against BmIFV and BmNPV. General combining ability (GCA) effects revealed that among the lines CSR2DR was found good general combiner exhibiting significant GCA effects for six characters, out of seven traits evaluated. Among testers CSR28DR was found as good combiner exhibiting significant GCA effects for six traits. Out of 36 hybrids made between $resistant{\times}resistant,\;resistant{\times}susceptible\;and\;susceptible{\times}susceptible$ breeds, one hybrid $CSR21DR{\times}CSR28DR$ exhibited significant SCA effects for six traits. The selected hybrid $CSR21DR{\times}CSR28DR$ also exhibited significant positive heterosis and heterobeltiosis expressions for maximum traits and could be exploited as commercial silkworm hybrid resistant to important viral diseases.

Keywords

References

  1. Basavaraja, H. K. (1996) Studies on the synthesis of produc­tive bivoltine strains of Bombyx mori L. through hybridisa­tion, selection and genetic evaluation. Ph.D Thesis, University of Mysore, Mysore
  2. Bhargava, S. K., V. Thiagarajan., M. Ramesh Babu, and B. Nagaraj (1992) Combining ability and genetic analysis of quantitative traits in silkworm (Bombyx mori L.) J Genet. & Breed., 46, 327-330
  3. Datta, R. K., D. Raghavendra Rao, K. P. Jayaswal, V. Pre­malatha, Ravindrasingh and B. K. Kariappa (2001) Heterosis in relation to combining ability in multivoltine and bivoltine strains of silkworm Bombyx mori L. Indian J. Seric. 40, 1-6
  4. Eguchi, R., W. Hara, A. Shimazaki, K., Hirota, K., M. Ichiba, O. Ninagi and K. Nagayasu (1998) Breeding of the silkworm race 'Taisei' non-susceptible to a densonucleosis virus type 1. J Seric. Sci. Jpn. 67, 361-366
  5. Gamo, T. (1976) Recent concepts and trends in silkworm breeding. Farming Japan 10, 11-22
  6. Griffing, B. (1956) Concepts on general and specific combin­ing ability in relation to diallel crossing systems. Aust. J Biol. Sci. 9, 463-493 https://doi.org/10.1071/BI9560463
  7. Harada, C. (1961) On the heterosis of quantitative characters in Silkworm. Bull. Seric. Expt. Stn. 17, 50-52
  8. Hirobe, T. (1968) Evolution, differentiation and breeding of the silkworm, the silk road. Past and present. In. Genetics in Asian Countries XII International Cong. Genetics (Tokyo), 25-26
  9. Hirobe, T. (1985) On the recent advancement of silkworm breeding in Japan. Tamagawa Univ., 2-17-19, Gakuen-cho, Highshikurume-shi Jpn., 157-167
  10. Kalpana, G . V. (1992) Breeding of superior races of Silkworm Bombyx mori L. for tropical climates Ph.D Thesis, Univer­sity of Mysore, Mysore. 288p
  11. Kempthome, O. (1957) An Introduction to genetic statistics. John Wiley and Sons Inc., Newyork
  12. Krishnaswami, S., M. S. Jolly and S. Subba Rao (1964) Diallel analysis of quantitative characters in multivoltine races of silkworm. Indian J. Genet. Pl. Breed. 24, 213-222
  13. Malik, G. N., M. A. Masoodi, A. S. Kamili and A. M. Sofi (1998) Studies on heterosis in some bivoltine silkworm (Bombyx mori L.) crosses. J. Seric. 6, 47-49
  14. Nagaraju. J., S. Raje Urs and R. K. Datta (1996) Cross breed­ing and heterosis in the silkworm Bombyx mori, a review. Sericologia 36, 1-20
  15. Nanjunda Swamy (1997) Studies on the combining ability in Silkworm Bombyx mori L. Ph.D thesis, University of My sore, Mysore
  16. Ramesh Babu, M., Chandrashekharaiah, H. Lakshmi, A., K. Goel and J. Prasad (2003) Combining ability analysis of diallel crosses in bivoltine silkworm, Bombyx mori L. Abstract in National Conference on Tropical Sericulture for Global Competitiveness 5-7 November p.26
  17. Singh, R., D. Raghavendra Rao, B. K. Kariappa, V. Premalatha and S. B. Dandin (2003) Studies on analysis of combining ability in the mulberry silkworm Bombyx mori L. Int. J. Indust. Entomol. 6, 107-113
  18. Sprague, G. F. and L. A. Tatum (1942) General vs specific combining ability in single crosses of corn. J. Amer. Soc. Agron. 34, 923-932 https://doi.org/10.2134/agronj1942.00021962003400100008x
  19. Subba Rao, G. (1983) Line ${\times}$ Tester analysis of some character in bivoltine silkworms, Abst. Sem. Silk. Res. & Devpt., Ban­galore, 15
  20. Sudhakara Rao, P., H. K. Basavaraja, V. Nishitha Naik, K. P. Jayaswal and M. Rekha (2001) Evaluation of combining ability in hybrids between polyvoltine x bivoltine (Sex-lim­ited cocoon colour) breeds of silkworm Bombyx mori L. Indian. J. Seric. 40, 163-16
  21. Yokoyama, T. (1957) On the application of heterosis in Japa­nese sericulture. Proc. Int. Genet. Symp., 527-531