LINKAGE MAP OF SSR MARKERS AND QTLS DETECTION FOR HEADING DATE OF IRANIAN RICE CULTIVARS

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RABIEI B.

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Journal Paper

Paper Information

Journal: JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST) Year:2007 | Volume:9 | Issue:3 Page(s): 235-242

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Information Journal Paper

Title

LINKAGE MAP OF SSR MARKERS AND QTLS DETECTION FOR HEADING DATE OF IRANIAN RICE CULTIVARS

Author(s)

RABIEI B. | Issue Writer Certificate

Keywords

HEADING DATE

LINKAGE MAP

MICROSATELLITE MARKERS

RICE

QUANTITATIVE TRAIT LOCI

Abstract

The construction of molecular maps and identification of genomic regions controlling quantitative traits have great significance for plant breeders. In this study, a genetic analysis of QUANTITATIVE TRAIT LOCI (QTLs) affecting the HEADING DATE of RICE was performed using an F2 population of a cross between two Iranian landrace cultivars, Domsephid and Gerdeh, comprising 192 plants. An approximately normal distribution was observed for the HEADING DATE in the F2 population. A genetic LINKAGE MAP with 88 informative MICROSATELLITE MARKERS (SSR) was constructed, which covered 1367.9 cM of the RICE genome with an average distance of 18 cM between markers. Single marker analysis (SMA) and interval mapping (IM) procedures were used to detect the QTLs controlling HEADING DATE and QTLs identified were further confirmed using composite interval mapping (CIM). Six significant QTLs (LOD³3.0) were identified for the HEADING DATE, of which three major QTLs mapped on chromosomes 6 (hd6), 7 (hd7) and 8 (hd8) had particularly high LOD scores and explained 23.5%, 19.8% and 20.5% of the total phenotypic variance, respectively.Three other minor QTLs detected for the HEADING DATE, located on chromosomes 1 (hd1), 3 (hd3) and 11 (hd11), accounted for 6.6%, 11.7% and 6.6% of the phenotypic variation, respectively. The additive effect of a single QTL ranged from 1.67 to 3.91 days. In the QTL hd6, alleles from Domsephid were responsible for reducing the HEADING DATE, while in the other five QTLs, alleles from Gerdeh caused a decrease in the HEADING DATE. The QTLs hd1, hd3 and hd8 showed over dominance effects for increasing the HEADING DATE, whereas the other three QTLs had partial to incomplete dominance effects for increasing (hd7 and hd11) and reducing (hd6) the HEADING DATE.

Cites

IDENTIFICATION OF QTLS LINKED TO PLANT HEIGHT AND MATURITY TIME IN RICE

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APA: Copy

RABIEI, B.. (2007). LINKAGE MAP OF SSR MARKERS AND QTLS DETECTION FOR HEADING DATE OF IRANIAN RICE CULTIVARS. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), 9(3), 235-242. SID. https://sid.ir/paper/537039/en

Vancouver: Copy

RABIEI B.. LINKAGE MAP OF SSR MARKERS AND QTLS DETECTION FOR HEADING DATE OF IRANIAN RICE CULTIVARS. JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST)[Internet]. 2007;9(3):235-242. Available from: https://sid.ir/paper/537039/en

IEEE: Copy

B. RABIEI, “LINKAGE MAP OF SSR MARKERS AND QTLS DETECTION FOR HEADING DATE OF IRANIAN RICE CULTIVARS,” JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST), vol. 9, no. 3, pp. 235–242, 2007, [Online]. Available: https://sid.ir/paper/537039/en

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