Abstract
In this study, ecological, morphological and genetic diversity in 11 surviving populations of Oryza rufipogon Griff. from Hainan Island, China were investigated. These data served to provide much needed data in support of conservation strategies. The results divided O. rufipogon into six ecotypes. The cluster analysis based on 19 morphological features showed clear differentiation among populations or within populations. The cluster analysis based on SSR also revealed similar results. The ecological, morphological and genetic diversity observed in O. rufipogon resulted in the following conservation recommendations: (1) the four currently protected O. rufipogon localities should be maintained, due to the different ecological communities represented at these sites; (2) some populations, such as HL (Hele county, Hainan Island), should be protected, but some populations, such as FC (Fucheng county, Hainan Island) and DL (Dalu county, Hainan Island), might not be protected. (3) An isolation zone should be established to avoid possible introgression between O. sativa L. and O. rufipogon; and human activities that impact O. rufipogon should be reduced or eliminated.
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Acknowledgments
We appreciate the support of the National basic research program of China (2007CB109202) and the National Special Program of Transgenic Research (2008ZX08011-001). We thank Crop Science Research Institute in CAAS and Guangdong Academy of Agricultual Sciences for providing partial samples.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s10722-010-9543-y
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Yibo, D., Xinwu, P., Qianhua, Y. et al. Ecological, morphological and genetic diversity in Oryza rufipogon Griff. (Poaceae) from Hainan Island, China. Genet Resour Crop Evol 57, 915–926 (2010). https://doi.org/10.1007/s10722-009-9523-2
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DOI: https://doi.org/10.1007/s10722-009-9523-2