Phylogenetic analysis of AGAMOUS sequences reveals the origin of the diploid and tetraploid forms of self-pollinating wild buckwheat, Fagopyrum homotropicum Ohnishi
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- Tomiyoshi Mitsuyuki
- Graduate School of Global Environmental Studies, Kyoto University
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- Yasui Yasuo
- Laboratory of Crop Evolution, Graduate School of Agriculture, Kyoto University
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- Ohsako Takanori
- Laboratory of Plant Resource Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
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- Li Cheng-Yun
- Key Laboratory of Agricultural Biodiversity and Pests Control, Ministry of Education, Yunnan Agricultural University
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- Ohnishi Ohmi
- Laboratory of Crop Evolution, Graduate School of Agriculture, Kyoto University
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- タイトル別名
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- Phylogenetic analysis of <i>AGAMOUS</i> sequences reveals the origin of the diploid and tetraploid forms of self-pollinating wild buckwheat, <i>Fagopyrum homotropicum</i> Ohnishi
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Fagopyrum homotropicum Ohnishi is a self-pollinating wild buckwheat species indigenous to eastern Tibet and the Yunnan and Sichuan Provinces of China. It is useful breeding material for shifting cultivated buckwheat (F. esculentum ssp. esculentum Moench) from out-crossing to self-pollinating. Despite its importance as a genetic resource in buckwheat breeding, the genetic variation of F. homotropicum is poorly understood. In this study, we investigated the genetic variation and phylogenetic relationships of the diploid and tetraploid forms of F. homotropicum based on the nucleotide sequences of a nuclear gene, AGAMOUS (AG). Neighbor-joining analysis revealed that representative individuals clustered into three large groups (Group I, II and III). Each group contained diploid and tetraploid forms of F. homotropicum. We identified tetraploid plants that had two diverged AG sequences; one belonging to Group I and the other belonging to Group II, or one belonging to Group II and the other belonging to Group III. These results suggest that the tetraploid form originated from at least two hybridization events between deeply differentiated diploids. The results also imply that the genetic diversity contributed by tetraploidization of differentiated diploids may have allowed the distribution range of F. homotropicum to expand to the northern areas of China.<br>
収録刊行物
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- Ｂｒｅｅｄｉｎｇ Ｓｃｉｅｎｃｅ
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Ｂｒｅｅｄｉｎｇ Ｓｃｉｅｎｃｅ 62 (3), 241-247, 2012
日本育種学会
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詳細情報 詳細情報について
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- CRID
- 1390282679698816256
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- NII論文ID
- 130004057164
- 10030870227
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- NII書誌ID
- AA11317194
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- ISSN
- 13473735
- 13447610
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- NDL書誌ID
- 023922358
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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