Abstract
The interaction between the Se1 and the Ef1 loci, which chiefly control the photoperiod sensitivity (PS) and the basic vegetative growth (BVG) period of rice (Oryza sativa L.) respectively, was investigated using four tester lines different in genotype for the two heading time loci from each other. The four tester lines were grown under 10, 13, 14, 15, and16h day lengths to estimate their BVG period and PS. The Taiwanese cultivar Taichung 65(T65), one of the tester lines, has an extremely long BVG period that has been considered to be conferred by a late heading-time allele ef1 at the Ef1 locus. Experimental results, however, showed that the extremely long BVG of T65was conferred not by a single effect ofef1 but by a complementary effect ofef1 and Se1-e, a photoperiod insensitivity allele, at theSe1 locus. It was also found that a complementary effect of a PS allele Se1-n at the Se1 locus and ef1stimulates the PS of rice. Gene analysis for heading time under an optimum daylength (10 h) as well as under natural day length confirmed the presence of the complementary effect of the two nonallelic genes on BVG, which was found only with homozygosity of both the genes. Based on these results and earlier reports on the Se1 locus, the roles of the Se1 andEf1 loci on the durations of pre-flowering developmental phases in rice were discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Chang, T.T., C.C. Li & B.S. Vergara, 1969. Component analysis of duration from seeding to heading in rice by the basic vegetative phase and the photoperiod-sensitive phase. Euphytica 18: 79–91.
Collinson, S.T., R.H. Ellis, R.J. Summerfield & E.H. Roberts, 1992. Durations of the photoperiod-sensitive and photoperiodinsensitive phases of development to flowering in four cultivars of rice (Oryza sativa L.). Ann Bot 70: 339–346.
Hosoi, N., 1981. Studies on meteorological fluctuation in the growth of rice plants. V. Regional differences of thermo-sensitivity, photo-sensitivity, basic vegetative growth and factors determining the growth duration of Japanese varieties. Jpn J Breed 31: 239–250. (in Japanese with English summary).
Ichitani, K., Y. Okumoto & T. Tanisaka, 1997. Photoperiod sensitivity gene of Se-1 locus found in photoperiod insensitive rice cultivars of the northern limit region of rice cultivation. Breed Sci 47: 145–152.
Ichitani, K., Y. Okumoto & T. Tanisaka, 1998a. Genetic analysis of the rice cultivar Kasalath with special reference to two photoperiod sensitivity loci, E1 and Se-1. Breed Sci 48: 51–57.
Ichitani, K., Y. Okumoto & T. Tanisaka, 1998b. Genetic analyses of low photoperiod sensitivity of rice cultivars from the northernmost regions of Japan. Plant Breed 117: 543–547.
Inoue, H., H. Nishida Y. Okumoto & T. Tanisaka, 1998. Identification of an early heading time gene found in the Taiwanese rice cultivar Taichung 65. Breed Sci 48: 103–108.
Kinoshita, T., 1995. Report of committee on gene symbolization, nomenclature and linkage groups. Rice Genet Newsl 12: 9–153.
Nagao, S. & M. Takahashi, 1963. Trial construction of twelve linkage groups in Japanese rice. Genetical studies on rice plant. XXVII. J Fac Agr Hokkaido Univ 53: 72–130.
Ohshima, I., F. Kikuchi, Y. Watanabe & C. Asahi, 1993. Genetic analysis of heading time in a cross between two indica varieties with inhibitor genes for photoperiod sensitivity. Jpn J Breed 43: 101–106. (in Japanese with English summary).
Okumoto, Y., K. Ichitani & T. Tanisaka, 1999. A new tester line for the genetic analysis of heading time in rice. Rice Genet Newsl 15: 117–119.
Okumoto, Y., K. Ichitani, H. Inoue & T. Tanisaka, 1996. Photoperiod insensitivity gene essential to the varieties grown in the northern limit region of paddy rice (Oryza sativa L.) cultivation. Euphytica 92: 63–66.
Okumoto, Y. & T. Tanisaka, 1997. Trisomic analysis of a strong photoperiod-sensitivity gene, E1, in rice (Oryza sativa L.). Euphytica 95: 301–307.
Okumoto, Y., T. Tanisaka & H. Yamagata, 1991a. A new tester line for analyzing heading-time genes in rice. Rice Genet Newsl 8: 129–131.
Okumoto, Y., T. Tanisaka & H. Yamagata, 1991b. Genotypic difference in response to light interruption in Japanese rice varieties. In: Rice Genetics II: 778–780. IRRI, Manila.
Okumoto, Y., A. Yoshimura, T. Tanisaka & H. Yamagata, 1992. Analysis of a rice variety Taichung 65 and its isogenic earlyheading lines for late heading genes E1, E2 and E3. Jpn J Breed 42: 415–429. (in Japanese with English summary).
Poonyarit, M., D.J. Mackill & V.S. Vergara, 1989. Genetics of photoperiod sensitivity and critical daylength in rice. Crop Sci 29: 647–652.
Sano, Y., 1990. A dominant suppressor for the photoperiod sensitivity gene Se1 detected in a photoperiod insensitive cultivar of Indica type. Rice Genet Newsl 7: 103–105.
Sano, Y., 1992. Genetic comparisons of chromosome 6 between wild and cultivated rice. Jpn J Breed 42: 561–572.
Syakudo, K. & T. Kawase, 1953. Studies on the quantitative inheritance (11) A. Rice (Oryza sativa L.) (d) Inheritance of the heading duration and the quantitative function of the causal genes in its determination. (1) On the quantitative function of the genes E1, E2, and D1. Jpn J Breed 3(2): 6–12. (in Japanese with English summary).
Tanisaka, T., H. Inoue, S. Uozu & H. Yamagata, 1992. Basic vegetative growth and photoperiod sensitivity of heading-time mutants induced in rice. Jpn J Breed 42: 657–668. (in Japanese with English summary).
Tsai, K.H., 1976. Studies on earliness genes in rice, with special reference to analysis of isoalleles at the E locus. Jpn J Genet 51: 115–128.
Vergara, B.S., & T.T. Chang, 1985. The flowering response of the rice plant to photoperiod (4th Ed.), IRRI, Manila.
Wada, E., 1954. Studies on the response of heading to daylength and temperature in rice plants. II. Response in upland and foreign rice varieties and its relationship to their geographical distribution. Jpn J Breed 3: 22–26. (in Japanese with English summary).
Yamagata, H., Y. Okumoto & T. Tanisaka, 1986. Analysis of genes controlling heading time in Japanese rice. In: Rice Genetics: 351–359. IRRI, Manila.
Yamamoto, T., Y. Kuboki, S.Y. Lin, T. Sasaki & M. Yano, 1998. Fine mapping of quantitative trait loci Hd-1, Hd-2 and Hd-3, controlling heading date of rice, as single Mendelian factors. Theor Appl Genet 97: 37–44.
Yano, M., Y. Harushima, Y. Nagamura, N. Kurata, Y. Minobe & T. Sasaki, 1997. Identification of quantitative trait loci controlling heading date in rice using a high-density linkage map. Theor Appl Genet 95: 1025–1032.
Yokoo, M. & H. Fujimaki, 1971. Tight linkage of blast-resistance with late maturity observed in different Indica varieties of rice. Jpn J Breed 21: 35–39.
Yokoo, M. & F. Kikuchi, 1977. Multiple allelism of the locus controlling heading time of rice, detected using the close linkage with the blast-resistance. Jpn J Breed 27: 123–130. (in Japanese with English summary).
Yokoo, M. & F. Kikuchi, 1982. Monogenic control of basic vegetative phase and photoperiod-sensitive phase in rice. Jpn J Breed 32: 1–8. (in Japanese with English summary)
Zhang, W.X., 1983. A study of the relationship between days to heading and photoperiod sensitivity, thermosensitivity, basic vegetative phase in rice varieties. Acta Agric Univ Pekinensis 9(3): 13–22. (in Chinese with English Summary).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ichitani, K., Inoue, H., Nishida, H. et al. Interactive effects of two heading-time loci, Se1 and Ef1, on pre-flowering developmental phases in rice (Oryza sativa L.). Euphytica 126, 227–234 (2002). https://doi.org/10.1023/A:1016357511738
Issue Date:
DOI: https://doi.org/10.1023/A:1016357511738