ADVANCED BACKCROSS ANALYSIS FOR THE IDENTIFICATION OF GENES/QTLS AFFECTING SALT TOLERANCE IN RICE (ORYZA SATIVA L.) BY MICROSATELLITE MARKERS

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FOTOUKIAN M.H.; TALEEI A.; GHARAHYAZI BEHZAD; POUSTINI K.; SHAHNEZHAT BOUSHEHRI A.A.; LI Z.K.

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Journal: Year:2006 | Volume:12 | Issue:1 Page(s): 151-164

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Title

ADVANCED BACKCROSS ANALYSIS FOR THE IDENTIFICATION OF GENES/QTLS AFFECTING SALT TOLERANCE IN RICE (ORYZA SATIVA L.) BY MICROSATELLITE MARKERS

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Keywords

RICE (ORYZA SATIVA L.)Q2

ADVANCED BACKCROSSQ3

SALINITY TOLERANCEQ3

MICROSATELLITEQ3

QTL MAPPINGQ2

Abstract

Rice is moderately sensetive to salinity. Salinity affects virtually all aspects of rice growth in varying degree at all stages starting from germination through maturation. It is now recognized that tolerance to salinity is genetically and physiologically complex and also inherited quantitatively. Molecular-marker aided selection technique for SALINITY TOLERANCE would accelerate breeding progress by increasing selection efficiency. In order to map the Genes/ QTLs for SALINITY TOLERANCE in rice, 62 ADVANCED BACKCROSS lines (BC2F5) derived from a cross between Tiqing as recurrent parent and Tarom molaei as donor parent, investigated in International Rice Research Institute (IRRI). The map length was 1747.3 cM with an average interval size of 15.3 cM. The phenotypic traits under study included: Sodium (Na) and Potassium (K) concentration in root and shoot, Dry and Wet weight of root and shoot, SALINITY TOLERANCE at 15 and 22 days after salt treatment in phytotron, Na-K ratio in root and shoot. We analyzed 235 SSR markers with uniform coverage on all 12 linkage group for parental survey by agarose and polyacrylamide gels, through that 114 markers showed polymorphism and assigned for genotyping. Transgressive segregation observed in all traits. The maximum correlation observed between dry and wet weight of Shoot (r =.94**). At least one QTL with additive effects mapped for all traits except for Na in shoot and SALINITY TOLERANCE after 21 days (FLS) .For K in root and Na-K ratio in root one QTL obtained with additive effect on each of chromosomes 1, 4, 8.

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APA: Copy

FOTOUKIAN, M.H., TALEEI, A., GHARAHYAZI, BEHZAD, POUSTINI, K., SHAHNEZHAT BOUSHEHRI, A.A., & LI, Z.K.. (2006). ADVANCED BACKCROSS ANALYSIS FOR THE IDENTIFICATION OF GENES/QTLS AFFECTING SALT TOLERANCE IN RICE (ORYZA SATIVA L.) BY MICROSATELLITE MARKERS. JOURNAL OF AGRICULTURAL SCIENCES, 12(1), 151-164. SID. https://sid.ir/paper/7660/en

Vancouver: Copy

FOTOUKIAN M.H., TALEEI A., GHARAHYAZI BEHZAD, POUSTINI K., SHAHNEZHAT BOUSHEHRI A.A., LI Z.K.. ADVANCED BACKCROSS ANALYSIS FOR THE IDENTIFICATION OF GENES/QTLS AFFECTING SALT TOLERANCE IN RICE (ORYZA SATIVA L.) BY MICROSATELLITE MARKERS. JOURNAL OF AGRICULTURAL SCIENCES[Internet]. 2006;12(1):151-164. Available from: https://sid.ir/paper/7660/en

IEEE: Copy

M.H. FOTOUKIAN, A. TALEEI, BEHZAD GHARAHYAZI, K. POUSTINI, A.A. SHAHNEZHAT BOUSHEHRI, and Z.K. LI, “ADVANCED BACKCROSS ANALYSIS FOR THE IDENTIFICATION OF GENES/QTLS AFFECTING SALT TOLERANCE IN RICE (ORYZA SATIVA L.) BY MICROSATELLITE MARKERS,” JOURNAL OF AGRICULTURAL SCIENCES, vol. 12, no. 1, pp. 151–164, 2006, [Online]. Available: https://sid.ir/paper/7660/en

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