摘要
外来入侵生物通过与本地生物竞争营养、水分和生存空间,造成严重的生态破坏和生物污染,最终导致生物多样性的丧失,逐渐成为人类生存和社会可持续发展的新威胁。简单序列重复(simple sequence repeats,SSRs)或微卫星DNA(microsatellites DNA)分子标记是生物群体遗传结构分析与变异研究中极有价值的分子标记,由于其具有多态性检出率高、信息含量大、共显性标记、实验操作简单、结果稳定可靠等优点,目前在外来入侵生物研究中得到广泛应用。本文概述了SSR分子标记在入侵昆虫来源鉴定、杂交和基因渗透、瓶颈效应等方面的应用进展,并对其在入侵生物学中的应用前景进行了展望。
The alien invasive species become a new threat to human survival and social sustainable development. They compete for nutrition, water and living space with native species, causing ecological destruction, biological pollution and loss of biodiversity. Simple sequence repeats （SSRs）, as a valuable marker, can be used to study intra-or interspecific variation and genetic structure of biological population. It is widely applied to the study of alien invasive species for its advantages, such as high detection rate of polymorphism, co-dominance, easy operation and credible result, etc. The development and applications of SSR molecular markers in identification, hybridization and introgression, bottleneck effect in the invasion process of invasive insects were discussed in this paper.
出处
《植物保护》
CAS
CSCD
北大核心
2008年第3期7-11,共5页
Plant Protection
基金
云南省科技攻关项目(2006SG23)
