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Determination of Gene Effects and Inheritance of genes for various Generations of Soybean Crosses (Glycine max L. Merrill)

Author: Madhuri Singh, S.K. Nag and R.K. Yadav

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Abstract

Using the means of P1, P2, F1, BC1, BC2 and F2 generations of three crosses of soybean, estimates of gene effects were obtained using the portioning method of six parameters model that assumed the presence of epistatic gene effects. Most of the yield components had predominance of additive gene effects which would be useful in exploiting transgressive variation for those traits among the progenies. Dominant gene effects are invariably exploited in developing hybrid varieties. Duplicate type of epistatis play a significant role in expression of the majority of the characters in all crosses of soybean. Complementary type of epistatis was found to be important to be expression of pod bearing length and days to 50% flowering, protein content, which indicates the possibility of improving to those traits in RSC11-42 × PS1475 and CG Soya 11-15 × PS1475 respectively.

Keywords

Gene effects, crosses, traits, soybean, selection

Conclusion

An improvement of seed yield in these crosses can be achieved by following the procedure of recurrent selection for specific combining ability in order to exploit dominance and epistasis gene action. Most of the yield components had predominance of additive gene effects which would be useful in exploiting transgressive variation for those traits among the progenies. Duplicate type of epistatis play a significant role in expression of the majority of the characters in all crosses of soybean. Complementary type of epistatis was found to be important to be expression of pod bearing length and days to 50% flowering, protein content, which indicates the possibility of improving to those traits in RSC11-42 × PS1475 and CG Soya 11-15 × PS1475 respectively.

References

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How to cite this article

Madhuri Singh, S.K. Nag and R.K. Yadav (2023). Determination of Gene Effects and Inheritance of genes for various Generations of Soybean Crosses (Glycine max L. Merrill). Biological Forum – An International Journal, 15(4): 243-245.