| 玉米F2群体分子标记偏分离的遗传分析 |
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| 引用本文： | 张帆,万雪琴,潘光堂. 玉米F2群体分子标记偏分离的遗传分析[J]. 作物学报, 2006, 32(9): 1391-1396 |
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| 作者姓名： | 张帆 万雪琴 潘光堂 |
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| 作者单位： | 1.四川农业大学玉米研究所, 四川雅安625014;2.四川农业大学林学院, 四川雅安625014 |
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| 基金项目： | 教育部长江学者奖励计划;国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 以优良玉米(Zea mays L.)自交系抗感杂交组合（R15×掖478）的F2群体为材料，构建了239个分子标记(包括151个SSR标记和88个AFLP标记)的玉米分子连锁图，覆盖全基因组3 463.5 cM，相邻标记间的平均间距为14.5 cM。在239个标记中，16个SSR标记和9个AFLP标记表现偏分离(P<0.05)。在4条不同的染色体上发现5个偏分离的
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| 关 键 词： | 分子标记 连锁图谱 偏分离 玉米(Zea mays L.) |
| 收稿时间： | 2005-09-15 |
| 修稿时间： | 2006-01-14 |
Genetic Analysis of Segregation Distortion of Molecular Markers in Maize F2 Population |
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| ZHANG Fan,WAN Xue-Qin,PAN Guang-Tang. Genetic Analysis of Segregation Distortion of Molecular Markers in Maize F2 Population[J]. Acta Agronomica Sinica, 2006, 32(9): 1391-1396 |
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| Authors: | ZHANG Fan WAN Xue-Qin PAN Guang-Tang |
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| Affiliation: | 1.Maize Research Institute, Sichuan Agricultural University, Ya’an 625014, Sichuan;2.Key Laboratory of Crop Genetic Resources and Improvement, Ministry of Education, Sichuan Agricultural University, Ya’an 625014 Sichuan;3.Department of Forestry, Sichuan Agricultural University, Ya’an 625014, Sichuan, China |
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| Abstract: | 230 F2individuals derivedfroma single cross betweeninbred maize(Zea maysL.) lines R15(resistant) andYe 478(susceptible) were used to construct a genetic linkage map.Atotal of 239 newly screened markers including 88AFLP markers and151 SSR markers were mapped onthe 10 chromosomes covering3 463.5 cMof maize genome,withtheaverage interval of 14.5 cM.Amongthe 239 markers,16 SSR markers(10.6 %) and 9 AFLP markers(8.9 %)showedgenetic distortion(P<0.05).Five putative segregation distortion regions(SDRs) were detected on 4 chromosomes,including 2 newones(SDR2and SDR7).The other 3 SDRs were located near the regions where gametophyte genes weremapped,indicatingthat segregation distortion could be partially caused by gametophytic factors. |
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| Keywords: | Molecular marker Linkage map Segregation distortion Maize (Zea mays L.) |
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