Abstract
The breeding system of an annual Cruciferae, Arabidopsis kamchatica subsp. kawasakiana, was studied in three natural populations. We applied four experimental treatments, open pollination, bagging, emasculation + bagging, and emasculation + hand-pollination + bagging. None of the emasculated flowers with bags produced fruits but we observed high fruit sets in the other three treatments. The results confirmed that A. kamchatica subsp. kawasakiana is a self-compatible, non-apomictic species that can produce seeds through auto-pollination. Considering the life cycle as an annual, increased reproductive assurance through auto-pollination should be critical for the maintenance of populations of A. kamchatica subsp. kawasakiana.
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Acknowledgments
We thank Drs T. Kawagoe, R. Shimamura, and K.K. Shimizu for their comments during the study. We also thank Drs S. Fujii and S. Kobayashi for their help in locating natural populations of A. kamchatica subsp. kawasakiana. The study was supported by the Sasakawa Scientific Research Grant from the Japan Science Society to J.S. and by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Science Research (B), 17370010 to H.K.
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Sugisaka, J., Kudoh, H. Breeding system of the annual Cruciferae, Arabidopsis kamchatica subsp. kawasakiana . J Plant Res 121, 65–68 (2008). https://doi.org/10.1007/s10265-007-0119-7
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DOI: https://doi.org/10.1007/s10265-007-0119-7