| Identification of genomic regions determining flower and pod numbers development in soybean （Glycine max L.） |
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| 作者姓名： | Dan Zhang Hao Cheng Hui Wang Hengyou Zhang Chunying Liu Deyue Yu |
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| 作者单位： | National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China |
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| 基金项目： | the National Basic Research Program of China，the National High-Tech Research Program of China，the National Natural Science Foundation of China，the 111 Program from the Ministry of Education |
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| 摘 要： |
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| 关 键 词： | 大豆产量 花荚 分子标记辅助选择 QTL检测 基因组 发育相关基因 数量性状位点 重组自交系 |
| 收稿时间： | 15 March 2010 |
Identification of genomic regions determining flower and pod numbers development in soybean (Glycine max L.) |
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| Dan Zhang,Hao Cheng,Hui Wang,Hengyou Zhang,Chunying Liu,Deyue Yu.Identification of genomic regions determining flower and pod numbers development in soybean (Glycine max L.)[J].Journal of Genetics and Genomics,2010,37(8):545-556. |
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| Authors: | Dan Zhang Hao Cheng Hui Wang Hengyou Zhang Chunying Liu Deyue Yu |
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| Institution: | 1. Plant Gene Expression Center, USDA–ARS/UC Berkeley, 800 Buchanan Street, Albany, CA 94710, USA;2. Department of Plant and Microbial Biology, University of California, Berkeley, 111 Koshland Hall, Berkeley, CA 94720, USA;3. CNRS, UMR5168, F-38054 Grenoble, France;4. Université Grenoble Alpes, UMR5168, F-38041 Grenoble, France;5. CEA, iRTSV, Laboratoire Physiologie Cellulaire et Végétale, F-38054 Grenoble, France;6. INRA, F-38054 Grenoble, France;7. Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA;8. Faculdade de Ciências da Universidade do Porto, Porto, Portugal |
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| Abstract: | Flower and pod numbers per plant are important agronomic traits underlying soybean yield.So far quantitative trait loci (QTL) detected for flower and pod-related traits have mainly focused on the final stage,and might therefore have ignored genetic effects expressed during a specific developmental stage.Here,dynamic expressions of QTL for flower and pod numbers were identified using 152 recombinant inbred lines (RILs) and a linkage map of 306 markers.Wide genetic variation was found among RILs;17 unconditional and 18 conditional QTL were detected for the two traits at different developmental stages over two years.Some QTL were detected only at one stage and others across two or more stages,indicating that soybean flower and pod numbers development may be governed by time-dependent gene expression.Three main QTL (qfn-Chr18-2,qfn-Chr20-1,and qfn-Chr19) were detected for flower number,and two main QTL (qpn-Chr11 and qpn-Chr20) were detected for pod number.The phenotypic variation explained by them ranged from 6.1% to 34.7%.The markers linked to these QTL could be used in marker-assisted selection for increasing soybean flower and pod numbers,with the ultimate aim of increasing soybean yield.Comparison of the QTL regions for flower and pod numbers traits with the related genes reported previously showed that seven and four related genes were located in the QTL regions of qfn-Chr11 and qfn-Chr19,respectively.Tbese results provide a basis for fine mapping and cloning of flower and pod development-related genes. |
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| Keywords: | conditional QTL unconditional QTL developmental quantitative genetics flower number pod number soybean |
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