Analysis of QTL Associated with the Allelopathic Effect of Rice Using Water-soluble Extracts.
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Accession number;01A0355616
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| Title;Analysis of QTL Associated with the Allelopathic Effect of Rice Using Water-soluble Extracts. |
| Author;
EBANA K
(National Inst. Agrobiological Resources, Ibaraki, Jpn)
YAN W
(Usda-ars, Arkansas, Usa)
DILDAY R H
(Usda-ars, Arkansas, Usa)
NAMAI H
(Univ. Tsukuba, Ibaraki, Jpn)
OKUNO K
(National Inst. Agrobiological Resources, Ibaraki, Jpn)
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Journal Title;Breed Sci
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Journal Code:Y0311B
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ISSN:1344-7610
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VOL.51;NO.1;PAGE.47-51(2001)
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| Figure&Table&Reference;FIG.2, TBL.2, REF.20 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Quantitative trait loci(QTL) associated with the allelopathic effect of rice(Oryza sativa L.) were identified using RFLP markers. The allelopathic effect was assessed by the growth inhibition of water-soluble extracts from the rice seedlings on lettuce seedlings. QTL analysis was carried out using the F2 population from the cross between an Indica type line PI312777(highly inhibitory) and a Japonica cultivar Rexmont(less inhibitory). Seven QTL were identified on chromosomes 1,3,5,6,7,11 and 12. One of the QTL on chromosome 6 had the largest effect on the expression of the allelopathic effect of rice and explained 16.1% of the phenotypic variation. The other six QTL explained the variation in the range from 9.4% to 15.1%. A multiple QTL model estimated that five QTL with LOD scores higher than 3.0 explained 36.6% of the total phenotypic variation. Digenic interactions in five pairs between the seven QTLs were detected. (author abst.) |
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