...
首页> 外文期刊>Journal of Experimental Botany >Using quantitative PCR with retrotransposon-based insertion polymorphisms as markers in sugarcane
【24h】

Using quantitative PCR with retrotransposon-based insertion polymorphisms as markers in sugarcane

机译:使用基于逆转座子的插入多态性作为甘蔗标记的定量PCR

获取原文
获取原文并翻译 | 示例
           

摘要

Sugarcane is the main source of the world's sugar and is becoming increasingly important as a source of biofuel. The highly polyploid and heterozygous nature of the sugarcane genome has meant that characterization of the genome has lagged behind that of other important crops. Here we developed a method using a combination of quantitative PCR with a transposable marker system to score the relative number of alleles with a transposable element (TE) present at a particular locus. We screened two genera closely related to Saccharum (Miscanthus and Erianthus), wild Saccharum, traditional cultivars, and 127 modern cultivars from Brazilian and Australian breeding programmes. We showed how this method could be used in various ways. First, we showed that the method could be extended to be used as part of a genotyping system. Secondly, the history of insertion and timing of the three TEs examined supports our current understanding of the evolution of the Saccharum complex. Thirdly, all three TEs were found in only one of the two main lineages leading to the modern sugarcane cultivars and are therefore the first TEs identified that could potentially be used as markers for Saccharum spontaneum.
机译:甘蔗是世界糖的主要来源,并且作为生物燃料的来源变得越来越重要。甘蔗基因组的高度多倍体性和杂合性意味着该基因组的特征落后于其他重要农作物的特征。在这里,我们开发了一种将定量PCR与可转座标记系统结合使用的方法,可对特定位点处存在的可转座元件(TE)等位基因的相对数量进行评分。我们从巴西和澳大利亚的育种计划中筛选了与蔗糖(Miscanthus和Erianthus),野生蔗糖,传统品种和127个现代品种密切相关的两个属。我们展示了如何以各种方式使用此方法。首先,我们表明该方法可以扩展为基因分型系统的一部分。其次,所考察的三个TE的插入历史和时间安排支持了我们目前对糖精复合体进化的理解。第三,所有三个TE仅在导致现代甘蔗栽培的两个主要谱系之一中发现,因此是最早鉴定出可能用作自发性酿酒酵母标记的TE。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号