| Identification and mapping of quantitative trait loci controlling cold-tolerance of Chinese common with rice （O.rufipogon Griff.） at booting to flowering stages |
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| 作者姓名： | LIUFangxia SUNChuanqing TANLubin FUYongcal LIDejun WANGXiangkun |
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| 作者单位： | DepartmentofPlantGeneitsandBreeding,ChinaAgriculturalUniversity,NationalKeyLaboratoryofAgrobiology,KeyLaboratoryofCropGeneticImprovementandGenomeoftheMinistryofAgriculture,Beijing100094,China |
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| 摘 要： | An advanced backcross population of rice was used to identify the quantitative trait locus(QTL) controlling the cold-tolerance at booting to flowering stages.The recipient,Guichao 2(GC2),was a commercial Indica rice;the donor Dongxiang common wild rice,was an accession of common wild rice(DXCWR,Oryza rufipogon Griff.).Three QTLs for cold-tolerance were detected on chromosomes 1,6 and 11.Two of them coming from DXCWR could enhance the cold-tolerance of the backcross progenies.Moreover,one sterility QTL that could reduce the seed set rate of the backcross progenies by 78% was mapped on chromosome5.
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| 关 键 词： | 耐寒性 水稻 开花期 播种设备 回交杂种 QTL分析 数量特点轨迹 |
Identification and mapping of quantitative trait loci controlling cold-tolerance of Chinese common wild rice (O. rufipogon Griff.) at booting to flowering stages |
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| LIUFangxia SUNChuanqing TANLubin FUYongcal LIDejun WANGXiangkun.Identification and mapping of quantitative trait loci controlling cold-tolerance of Chinese common wild rice (O. rufipogon Griff.) at booting to flowering stages[J].Chinese Science Bulletin,2003,48(19):2068-2071. |
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| Authors: | Fengxia Liu Chuanqing Sun Lubin Tan Yongcai Fu Dejun Li Xiangkun Wang |
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| Institution: | (1) Department of Plant Genetics and Breeding, China Agricultural University, 100094 Beijing, China;(2) National Key Laboratory of Agrobiology, Key Laboratory of Crop Genetic Improvement and Genome of the Ministry of Agriculture, 100094 Beijing, China |
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| Abstract: | An advanced backcross population of rice was used to identify the quantitative trait locus (QTL) controlling the cold-tolerance
at booting to flowering stages. The recipient, Guichao 2 (GC2), was a commercial Indica rice; the donor Dongxiang common wild
rice, was an accession of common wild rice (DXCWR, Oryza rufipogon Griff.). Three QTLs for cold-tolerance were detected on chromosomes 1, 6 and 11. Two of them coming from DXCWR could enhance
the cold-tolerance of the backcross progenies. Moreover, one sterility QTL that could reduce the seed set rate of the backcross
progenies by 78% was mapped on chromosome 5. |
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| Keywords: | rice advanced backcross population cold-tolerance seed set rate QTL analysis |
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