| 山羊草属异源多倍体植物基因组进化的ISSR分析 |
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| 引用本文： | 龚汉雨,刘爱华,王建波.山羊草属异源多倍体植物基因组进化的ISSR分析[J].植物分类学报,2006,44(3):286-295. |
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| 作者姓名： | 龚汉雨 刘爱华 王建波 |
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| 作者单位： | 武汉大学生命科学学院植物发育生物学教育部重点实验室,武汉,430072 |
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| 摘 要： | 使用31个ISSR引物对山羊草属Aegilops多倍体植物及其祖先二倍体（共23种）的基因组进行了分析，结果表明：与其二倍体祖先种相比，异源多倍体物种的基因组发生了很大变化。在含U基因组的异源多倍体物种中，U基因组相对而言变化很小，而其他基因组则发生了不同程度的变化。这表明当U基因组与其他基因组共存于多倍体物种中时，U基因组表现出较强的“同化效应”。对这些基因组的进化进行了讨论。
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| 关 键 词： | 山羊草属 异源多倍体 基因组进化 |
| 收稿时间： | 12 16 2004 12:00AM |
| 修稿时间： | 07 28 2005 12:00AM |
Genomic evolutionary changes in Aegilops allopolyploids revealed by ISSR markers |
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| GONG Han-Yu,LIU Ai-Hua,WANG Jian-Bo.Genomic evolutionary changes in Aegilops allopolyploids revealed by ISSR markers[J].Acta Phytotaxonomica Sinica,2006,44(3):286-295. |
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| Authors: | GONG Han-Yu LIU Ai-Hua WANG Jian-Bo |
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| Institution: | Key Laboratory of Ministry of Education for Plant Developmental Biology, College of Life Sciences Wuhan University Wuhan 430072, China |
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| Abstract: | Genomic evolutions were characterized by 31 ISSR (inter-simple sequence repeat) primers among 23 species in the genus Aegilops. The results indicate that the genome constituents of allopolyploid species had changed greatly through evolution compared with their ancestral diploid species. Genome U showed little alterations in U-containing allopolyploids, while others had undergone changes after allopolyploidization. In addition, genome U also displayed strong assimilation effect when it coexisted with other genomes, and the other genomes changed to varying degrees. The evolutionary changes of these genomes were discussed. |
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| Keywords: | ISSR Aegilops allopolyploid genomic evolutionary change ISSR |
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