Close genetic relationship between cultivated and natural populations of common buckwheat in the Sanjiang area is not due to recent gene flow between them : An analysis using microsatellite markers
スポンサーリンク
概要
- 論文の詳細を見る
Natural populations of wild common buckwheat have been found growing adjacent to cultivated populations of common buckwheat. Gene flow between the cultivated and natural populations would be expected in such cases. To evaluate the amount of gene flow, two sets composed of a cultivated buckwheat population and an adjacent natural population of wild common buckwheat were chosen, one from Yanjing village in the Sanjiang area, which is presumed to be the original birthplace of common buckwheat, and one from Jinhe village, Yanyuan district of Sichuan province in China. The genotypes of 45 individuals from each population were examined at eight microsatellite marker loci to estimate the magnitude of gene flow between the cultivated and wild common buckwheat populations. The Bayesian method with a Markov chain Monte Carlo approach estimated that the magnitude of gene flow between the populations in the Sanjiang area at 0.002–0.008 was not significantly different from that found in Yanyuan district at 0.002–0.008. The gene flow between cultivated populations was higher, usually at 0.002–0.044 (exceptionally high at 0.255 between cultivated populations of Yanjing and Jinhe), than that found between a cultivated population and a natural population (0.002–0.008) or between two natural populations (0.002–0.003). Therefore, the genetic similarity found between the cultivated populations and natural populations observed in the Sanjiang area (<bibref label = "konishi2005">Konishi et al., 2005</bibref>) was not due to recent gene flow between them. This in turn suggests that the close genetic relationship found in the Sanjiang area may be due to the common ancestry of the natural populations and cultivated common buckwheat.
- 日本遺伝学会の論文
- 2007-02-25
著者
-
Konishi Takehiko
Laboratory of Crop Evolution, Graduate School of Agriculture, Kyoto University
-
Ohnishi Ohmi
Laboratory Of Crop Evolution Graduate School Of Agriculture Kyoto University
-
Konishi Takehiko
Laboratory Of Crop Evolution Graduate School Of Agriculture Kyoto University
関連論文
- Chromosome evolution among seven Fagopyrum species revealed by fluorescence in situ hybridization (FISH) probed with rDNAs
- Development and Characterization of Microsatellite Markers for Common Buckwheat
- Genetic Relationship among East and South Asian Melon (Cucumis melo L.) Revealed by AFLP Analysis
- Multiple origins and high genetic diversity of cultivated radish inferred from polymorphism in chloroplast simple sequence repeats
- Original birthplace of cultivated common buckwheat inferred from genetic relationships among cultivated populations and natural populations of wild common buckwheat revealed by AFLP analysis
- Genetic diversity of cultivated and wild radish and phylogenetic relationships among Raphanus and Brassica species revealed by the analysis of trnK/matK sequence
- ハマダイコンにおけるアロザイム変異の野生集団内分布〔英文〕
- Construction of a BAC library for buckwheat genome research : An application to positional cloning of agriculturally valuable traits
- Close genetic relationship between cultivated and natural populations of common buckwheat in the Sanjiang area is not due to recent gene flow between them : An analysis using microsatellite markers
- ソバ,Fagopyrum esculentum Moench,の集団遺伝学的研究-9-アロザイム変異の世界的規模での調査--その結論〔英文〕
- ソバ,Fagopyrum esculentum Moench,の集団遺伝学的研究-8-ヨ-ロッパ,シルクロ-ド集団におけるアロザイム変異〔英文〕
- ソバ,Fagopyrum esculentum Moench,の集団遺伝学的研究-2-日本の栽培集団における矮性遺伝子の頻度〔英文〕
- ソバ,Fagopyrum esculentum Moench,の集団遺伝的学研究-5-インドおよびネパ-ルヒマラヤにおけるアロザイム変異〔英文〕
- Phylogenetic analysis of AGAMOUS sequences reveals the origin of the diploid and tetraploid forms of self-pollinating wild buckwheat, Fagopyrum homotropicum Ohnishi