QTL analysis of seed storability in rice
Abstract:A double haploid population, which consists of 127 lines derived from anther culture of a typical indica and japonica hybrid 'ZYQ8'/'JX17', was used in this study. Seed storability was investigated by using the storage property measured by the difference of seed germination rates before and after treatment of the rice seeds under 40°C and 95% relative humidity for 10 days in a phytotron. Three QTLs related to rice seed storability were detected on chromosomes 9, 11 and 12, with the LOD scores 2.76, 4.83 and 2.54, respectively, together explaining 35.4% of the genetic variation. The 'JX17' allele at qLS-9 and the 'ZYQ8' alleles at qLS-11 and qLS-12 could enhance the rice seed storability. The effects of the 'ZYQ8' alleles of qLS-11 and qLS-12 were also verified using chromosome segment substitution lines.
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[1] M. T. Jackson,et al. Variation in seed longevity of rice cultivars belonging to different isozyme groups , 1997, Genetic Resources and Crop Evolution.
[2] P. He,et al. Comparative mapping of QTLs for agronomic traits of rice across environments using a doubled haploid population , 1996, Theoretical and Applied Genetics.
[3] D. Mackill,et al. Mapping quantitative trait loci for seedling vigor in rice using RFLPs , 1996, Theoretical and Applied Genetics.
[4] Lihuang Zhu,et al. QTL analysis of seed dormancy in rice (Oryza sativa L.) , 2004, Euphytica.
[5] S. Lin,et al. Mapping quantitative trait loci controlling seed longevity in rice (Oryza sativa L.) , 2002, Theoretical and Applied Genetics.
[6] M. Yano,et al. Genetic and molecular dissection of naturally occurring variation. , 2001, Current opinion in plant biology.
[7] M. Yamauchi,et al. Rice seed vigor and seedling establishment in anaerobic soil , 1996 .
[8] M. T. Jackson,et al. Seed production environment and storage longevity of japonica rices (Oryza sativa L.) , 1996 .
[9] M. T. Jackson,et al. Seed Longevity of Rice Cultivars and Strategies for their Conservation in Genebanks , 1996 .
[10] T. D. Hong,et al. Desiccation Tolerance and Potential Longevity of Developing Seeds of Rice ( Oryza sativa L.) , 1994 .
[11] B. O. Juliano,et al. Varietal differences in longevity of tropical rough rice stored under ambient conditions , 1990 .
[12] R. Singh,et al. Inheritance study of soybean seed storability using an accelerated aging test , 1986 .
[13] J. Piech,et al. Effect of Chromosome Deficiencies on Seed Viability in Wheat, Triticum aestivum L. , 1979 .