Abstract
Polyploidy is a prominent process in plants and has been significant in the evolutionary history of vertebrates and other eukaryotes. Polyploidy induces genome-wide duplication. Studies on nucleotide diversity at homoeologous loci may provide insight into the evolutionary dynamics of duplicate genes. In the present study, we estimated the levels and patterns of nucleotide diversity for alcohol dehydrogenase 1 (adh1) loci in three American allotetraploid Oryza species: O. alta, O. grandiglumis, and O. latifolia. Higher nucleotide diversity was revealed in the C genome. This result suggested the different evolutionary dynamics of homoeologous adh1 loci in these allotetraploid Oryza species.
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Acknowledgments
We thank Ren-Hua Wu, Yan-Ping Hu, Zhao-Shan Wang, Yong-Ting Ma, Ping Liu, Xiu-Hua Xue, Yi-Hua Xiao and Wen-Feng Tu for their technical assistance and the International Rice Research Institute (Manila, Philippines) for providing seed samples. The work was supported by the National Natural Science Foundation of China (30470124, 30770145); Program for New Century Excellent Talents in University (NCET-06-0609); Doctoral Research Fund for Shandong Province (2007BS08020); The Project of Key Disciplines of Shandong Province and The Project Sponsored by the Scientific Research Foundation for the Doctors, Qufu Normal University.
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P.-C. Gong and Y. Bao contributed equally to this work.
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Gong, PC., Bao, Y. Nucleotide diversity of the homoeologous adh1 loci in the American allotetraploid Oryza species. Plant Syst Evol 276, 243–253 (2008). https://doi.org/10.1007/s00606-008-0093-0
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DOI: https://doi.org/10.1007/s00606-008-0093-0