Analysis on Genomic Evolution via Domestication Steps of Amygdalus subgenus

杏仁亚属驯化步骤的基因组进化分析

• 批准号: 23880013
• 负责人: AKAGI Takashi
• 金额: $ 1.08万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23880013/
• 关键词: モモ; 全ゲノム解析; SNPsタイピング; 栽培化; selective sweep; ジェノタイピングチップ

Genome-wide genetic structural analysis was conducted to 96 species of Amygdalus subgenus by using the SNPs information from ca. 9000 loci in the genome. It was suggested that current domesticated peach(Prunus persica) cultivars formed multiple clusters which had been under the historical artificial selections, to which wild cultivars have not been subjected. Comparison of differences in the genetic diversities among the clusters showed some specific selective sweeps on certain genomic regions of each cluster. Importantly, the clusters of the ornamental flower peaches and the main fruit peaches gave clues for artificial selective pressure on their certain genomic regions, respectively. These genomic regions contained genes apparently related to the characteristics specific to each cluster. It would be suggested that these genes importantly play substantial rolls to maintain the characteristics of each peach cluster and to lead them under the domestication.

利用基因组中约9000个位点的snp信息，对96种Amygdalus亚属进行了全基因组遗传结构分析。结果表明，目前的桃树驯化品种形成了多个集群，这些集群是经过历史人工选择的，而野生品种没有受到这种集群的影响。遗传多样性的差异比较表明，每个集群的某些基因组区域都有特定的选择性扫描。重要的是，观赏花桃和主要果实桃的集群分别为其特定基因组区域的人工选择压力提供了线索。这些基因组区域包含的基因显然与每个集群特有的特征有关。这些基因对维持桃群的特性起着重要的作用，对桃群的驯化起着重要的引导作用。

项目成果

育種・栽培化に伴うモモのS locusの進化

桃S基因座因育种和驯化而进化

• 发表时间: 2011
• 作者: 大上安奈;井上芳光;古賀俊策;西保岳;近藤徳彦;赤木剛士・花田俊男・八重垣英明・山口正巳・田尾龍太郎
• 通讯作者: 赤木剛士・花田俊男・八重垣英明・山口正巳・田尾龍太郎