期刊论文

中文

中国马铃薯

1672-3635

2012

1

11-16

10.3969/j.issn.1672-3635.2012.01.003

国家科技支撑计划“高产优质专用马铃薯育种技术研究及新品种选育”（2006BAD01A06-1-8）；

本校为第一机构

马铃薯（Solanum tuberosumL）是我国重要的粮食作物，性喜阴湿冷凉的环境，干旱严重影响着马铃薯的品质产量的稳定。试验采用PEG-6000模拟干旱胁迫处理3个品种的马铃薯幼苗，并对其基因组DNA进行甲基化敏感扩增多态性（Methvlation-sensitiveamplifiedpolymorphism，MSAP）分析，在20％的PEG胁迫下，‘大西洋’的基因组DNA甲基化程度随着时间的增长而有所增大。‘中薯3号’在20％的PEG胁迫下，随着时间的增长，甲基化基本趋势是减弱的。‘中薯5号’和‘中薯3号’情况类似，其甲基化趋势基本上也是随着时间增长而降低的。将特异带回收测序和B1ast比对，结果表明其中几条带跟与萜类化合物合成等功...

Potato is an important food crop, and adapts to cool and wet environments. However, drought seriously affects its quality and yield. In this research, three potato cultivars were treated with PEG-6000 to simulate drought stress. The extent and pattern of cytosine methylation of the genomes were assessed by using the technique of methylation-sensitive amplified polymorphism （MSAP）. It was found that treated with 20% PEG-6000, DNA methylation of＇Altantic＇ was increased, while that of DNA methylation of ＇Zhongshu 3＇ and ＇Zhongshu 5＇ decrea...