Summary
Inheritance of waxy locus was studied in crosses of a waxy variety with four non-waxy parents having high-, intermediate-, low- or very low-amylose content. The analysis for amylose content was done on a single grain basis in parents, F1, F2, B1F1, and B2F1 seeds. The waxy parent lacking synthesis of amylose content was found to differ from the ones having high-, intermediate-, low- or very low-amylose content by one gene with major effect. Dosage effects for amylose content were observed to have great influence on segregation pattern and efficiency of selection. Selection efficiency for amylose content can be enhanced by selecting for endosperm appearance in early segregating generations.
Similar content being viewed by others
References
Ikeno S (1914) Über die Bestäubung und die Bastardierung von Reis. Z Pflanzenzücht 2:495–503
International Rice Research Institute (1976) Annu Rep 1975 Los Baños, Philippines, pp 85–86
Iwata N, Omura T (1971) Linkage analysis by reciprocal translation method in rice plants (Oryza sativa L.). 1. Linkage groups corresponding to chromosome 1, 2, 3, and 4. Jpn J Breed 21:19–28
Juliano BO (1971) A simplified assay for milled rice amylose. Cereal Sci Today 16:334–338, 340, 360
Nagao S, Takahashi ME (1963) Trial construction of twelve linkage groups in Japanese rice (Genetical studies on rice plant XXVII). J Fac Agric Hokkaido Univ 53:72–130
Sano Y (1984) Differential regulation of waxy gene expression in rice endosperm. Theor Appl Genet 68:467–473
Author information
Authors and Affiliations
Additional information
Communicated by H.F. Linskens
Rights and permissions
About this article
Cite this article
Kumar, I., Khush, G.S. & Juliano, B.O. Genetic analysis of waxy locus in rice (Oryza sativa L.). Theoret. Appl. Genetics 73, 481–488 (1987). https://doi.org/10.1007/BF00289183
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00289183