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Genetics of gel consistency in rice (Oryza sativa L.)

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Abstract

Inheritance of gel consistency in rice was studied in crossés involving highamylose, low-gelatinizalion temperature parents with hard, medium, and soft gel consistency. The results of single-grain analysis of parents, F1, F2, B1F1, B2F2, and their reciprocal crosses from a single-season harvest showed that the differences between hard and soft, hard and medium, and medium and soft gel consistency are under monogenic control and that modifiers affect the expression of the trait. Multiple alleles at the same locus, hereby designated asgec a for medium gel consistency andgec b for soft gel consistency, were recessive to the wild type allele for hard gel consistency andgec a was dominant overgec b. The results indicate that selection for desired gel consistency can effectively be done in early segregating generations.

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Author notes

  1. S. X. Tang

    Present address: China National Rice Research Institute, Hangzhou, China

Authors and Affiliations

  1. International Rice Research Institute, P. O. Box 933, Manila, Philippines

    S. X. Tang, G. S. Khush & B. O. Juliano

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  1. S. X. Tang
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  2. G. S. Khush
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  3. B. O. Juliano
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Tang, S.X., Khush, G.S. & Juliano, B.O. Genetics of gel consistency in rice (Oryza sativa L.). J Genet 70, 69–78 (1991). https://doi.org/10.1007/BF02927807

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  • DOI: https://doi.org/10.1007/BF02927807

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