[Objectives]The paper was to analyze the differences of genes and genome methylation between‘lane late’navel orange and it’s bud sport pumpkin-like navel orange,and to reveal the causes of bud sport.[Methods]Amplif...[Objectives]The paper was to analyze the differences of genes and genome methylation between‘lane late’navel orange and it’s bud sport pumpkin-like navel orange,and to reveal the causes of bud sport.[Methods]Amplification fragment length polymorphism(AFLP)and methylation sensitive amplification polymorphism(MSAP)were used to analyze the differences in genes and genome methylation of‘lane late’navel orange and its bud sport pumpkin-like navel orange.[Results]Gene mutation occurred between the‘lane late’navel orange and its bud sport pumpkin-like navel orange.A total of 15 differential bands were obtained by AFLP markers,and the percentage of polymorphic bands was 6.0000%.Meantime,10 differential bands were obtained by MSAP markers,and the percentage of polymorphic bands was 5.4645%.The semimethylation rate and permethylation rate of‘lane late’navel orange were higher than that of pumpkin-like navel orange,that is,pumpkin-like navel orange had demethylation(demethylation ratio was 1.6393%).[Conclusions]It is proved at the DNA level that the emergence of bud sport pumpkin-like navel orange is due to gene mutation,and the DNA methylation level of the bud sport material has also changed.This study lays a foundation for further exploring the mechanism of bud sport.展开更多
应用AFLP技术,筛选了40对引物,其中EcoR I AGC+M seI CGA,EcoR I AGC+M seI CAC,EcoR I AGG+M seI CAC,EcoR I AGG+M seI CCA,EcoR I ACG+M seI CAC,EcoR I ACG+M seI CCA等共12对引物经PCR扩增,效果理想,共扩增出4 227条带,带型清晰、...应用AFLP技术,筛选了40对引物,其中EcoR I AGC+M seI CGA,EcoR I AGC+M seI CAC,EcoR I AGG+M seI CAC,EcoR I AGG+M seI CCA,EcoR I ACG+M seI CAC,EcoR I ACG+M seI CCA等共12对引物经PCR扩增,效果理想,共扩增出4 227条带,带型清晰、丰富、可靠性强。在EcoR1-ACG+M seI-CAC这对引物下,果实性状优良的单株变异与普通对照(即普通冰糖橙)有明显的带型差异,多态性比例达10.2%。应用AFLP技术进行柑橘芽变的分析和鉴定获得成功。展开更多
基金Supported by Open Project Foundation of National Navel Orange Engineering Research Center(2019-03)Jiangxi Provincial Natural Science Foundation(20212ACB205001)。
文摘[Objectives]The paper was to analyze the differences of genes and genome methylation between‘lane late’navel orange and it’s bud sport pumpkin-like navel orange,and to reveal the causes of bud sport.[Methods]Amplification fragment length polymorphism(AFLP)and methylation sensitive amplification polymorphism(MSAP)were used to analyze the differences in genes and genome methylation of‘lane late’navel orange and its bud sport pumpkin-like navel orange.[Results]Gene mutation occurred between the‘lane late’navel orange and its bud sport pumpkin-like navel orange.A total of 15 differential bands were obtained by AFLP markers,and the percentage of polymorphic bands was 6.0000%.Meantime,10 differential bands were obtained by MSAP markers,and the percentage of polymorphic bands was 5.4645%.The semimethylation rate and permethylation rate of‘lane late’navel orange were higher than that of pumpkin-like navel orange,that is,pumpkin-like navel orange had demethylation(demethylation ratio was 1.6393%).[Conclusions]It is proved at the DNA level that the emergence of bud sport pumpkin-like navel orange is due to gene mutation,and the DNA methylation level of the bud sport material has also changed.This study lays a foundation for further exploring the mechanism of bud sport.
文摘应用AFLP技术,筛选了40对引物,其中EcoR I AGC+M seI CGA,EcoR I AGC+M seI CAC,EcoR I AGG+M seI CAC,EcoR I AGG+M seI CCA,EcoR I ACG+M seI CAC,EcoR I ACG+M seI CCA等共12对引物经PCR扩增,效果理想,共扩增出4 227条带,带型清晰、丰富、可靠性强。在EcoR1-ACG+M seI-CAC这对引物下,果实性状优良的单株变异与普通对照(即普通冰糖橙)有明显的带型差异,多态性比例达10.2%。应用AFLP技术进行柑橘芽变的分析和鉴定获得成功。
