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Published online 23 February 2005
Published in Crop Sci 45:712-716 (2005)
© 2005 Crop Science Society of America
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Quantitative Trait Loci Associated with Seed Dormancy in Rice

J. M. Wana,*, Y. J. Caoa, C. M. Wanga and H. Ikehashib

a National Key Lab. for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural Univ., Nanjing 210095 China
b Dep. of Plant and Resources, College of Bioresource Sciences, Nihon Univ., 1866 Kameino, Fujisawa, Knagawa 252-8510, Japan


Figure 1
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  		Fig. 1. Simple sequence repeats (SSR) linkage map and putative quantitative trait loci (QTLs) for seed dormancy. White and black circles represent putative region of QTLs for seed dormancy detected in the three-way cross and F2 populations, respectively. Black bars represent two epitatic loci. Loci with significant segregation distortion from the expected segregation ratio (P < 0.05) are marked with I or J, where the frequency of indica allele and that of japonica allele increased, respectively.

 

Figure 2
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  		Fig. 2. Frequency distribution of seed dormancy in F1 generation of a rice population constructed from crosses among IR50/Tachimimochi//Miyukimochi. (The arrows denote the dormancy levels of the parents.)

 

Figure 3
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  		Fig. 3. Frequency distribution of seed dormancy in F2 generation of a rice population constructed from crosses among IR50/Tachimimochi//Miyukimochi. (The arrows denote the dormancy levels of the parents.)

 




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