J Syst Evol ›› 2006, Vol. 44 ›› Issue (3): 286-295.DOI: 10.1360/aps040169

• Research Articles • Previous Articles     Next Articles

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)jbwang@whu.edu.cn
  • Received:2004-12-16 Published:2006-05-18

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.

Key words: Aegilops, allopolyploid, genomic evolutionary change, ISSR