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Geographical genetic diversity and divergence of common wild rice (O. rufipogon Griff.) in China

  • Articles/Crop Germplasm Resources
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Chinese Science Bulletin

Abstract

Using 36 SSR markers and 889 accessions of common wild rice in China, the genetic diversity and the divergence among different geographical populations are investigated. Guangdong Province has the largest number of alleles, which account for 84% of the total alleles detected in the study, followed by Guangxi Province. The Nei’s gene diversity indices, from high to low, are in the sequence of Hainan, Guangdong, Guangxi, Fujian, Hunan, Jiangxi, and Yunnan provinces. Two genetic diversity centers of Chinese common wild rice are detected on the basis of geographic analysis, i.e., the region covering Boluo, Zijin, Lufeng, Haifeng, Huidong and Huiyang counties of Guangdong Province and the region covering Yongning, Longan, Laibin and Guigang counties of Guangxi Province. The common wild rice in Yunnan, Hunan, Jiangxi, and Fujian provinces are diverged into respectively independent populations with relatively large genetic distances, whereas, those in Hainan, Guangdong and Guangxi provinces have relatively low genetic divergence. Under the condition of geographic separation, natural selection is considered as one of the primary forces contributing to the divergence of common wild rice in China.

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Authors and Affiliations

  1. Key Laboratory of Crop Genomics & Genetic Improvement of Ministry of Agriculture and Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China

    MeiXing Wang, HongLiang Zhang, DongLing Zhang, YongWen Qi, JunLi Sun & ZiChao Li

  2. Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China

    DaJian Pan, ZhiLan Fan & Chen Li

  3. Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China

    DaoYuan Li

  4. Institute of Crop Science, CAAS, Beijing, 100081, China

    QingWen Yang

  5. Institute of Crops and Utilization of Nuclear Technology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China

    MeiXing Wang

Authors
  1. MeiXing Wang
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  2. HongLiang Zhang
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  3. DongLing Zhang
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  4. DaJian Pan
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  5. DaoYuan Li
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  8. JunLi Sun
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  9. QingWen Yang
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  10. Chen Li
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  11. ZiChao Li
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Corresponding authors

Correspondence to HongLiang Zhang or ZiChao Li.

Additional information

Supported by the National Basic Research and Development Program of China (Grant No. 2004CB117201), Program for Changjiang Scholars and Innovative Research Team in University, and Programme of Introducing Talents of Discipline to Universities (Grant No. 111-2-03)

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Wang, M., Zhang, H., Zhang, D. et al. Geographical genetic diversity and divergence of common wild rice (O. rufipogon Griff.) in China. Chin. Sci. Bull. 53, 3559–3566 (2008). https://doi.org/10.1007/s11434-008-0491-2

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  • DOI: https://doi.org/10.1007/s11434-008-0491-2

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