植物分类学报

• 研究论文 • 上一篇    下一篇

山羊草属异源多倍体植物基因组进化的ISSR分析

龚汉雨, 刘爱华, 王建波*   

  1. (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)
  • 收稿日期:2004-12-16 修回日期:2005-07-21 出版日期:2006-05-18 发布日期:2006-05-18
  • 通讯作者: 王建波 E-mail:jbwang@whu.edu.cn

Genomic evolutionary changes in Aegilops allopolyploids revealed by ISSR markers

GONG Han-Yu, LIU Ai-Hua, WANG Jian-Bo*   

  1. (Key Laboratory of Ministry of Education for Plant Developmental Biology, College of Life Sciences, Wuhan University, Wuhan 430072, China)
  • Received:2004-12-16 Revised:2005-07-21 Online:2006-05-18 Published:2006-05-18
  • Contact: WANG Jian-Bo E-mail:jbwang@whu.edu.cn

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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