Department of Entomology, The Ohio State University/OARDC, 1680 Madison Avenue, Wooster, OH 44691, USA.
Genome. 2013 Jun;56(6):345-50. doi: 10.1139/gen-2013-0027. Epub 2013 Jul 12.
Following its recent invasion of North America, the soybean aphid (Aphis glycines Matsumura) has become the number one insect pest of soybean (Glycine max L. Merr.) in the north central states of the USA. A few studies have been conducted on the population genetic structure and genetic diversity of the soybean aphid and the source of its invasion in North America. Molecular markers, such as simple sequence repeats (SSRs) are very useful in the evaluation of population structure and genetic diversity. We used 18 SSR markers to assess the genetic diversity of soybean aphid collections from the USA, South Korea, and Japan. The aphids were collected from two sites in the USA (Indiana and South Dakota), two sites in South Korea (Yeonggwang district and Cheonan city), and one site in Japan (Utsunomiya). The SSR markers were highly effective in differentiating among aphid collections from different countries. The level of differentiation within each population and among populations from the same country was limited, even in the case of the USA where the two collection sites were more than 1200 km apart.
继最近入侵北美之后，大豆蚜虫（Aphis glycines Matsumura）已成为美国中北部各州大豆（Glycine max L. Merr.）的头号虫害。已经有一些关于大豆蚜虫种群遗传结构和遗传多样性以及其在北美的入侵来源的研究。分子标记，如简单重复序列（SSR），在评估种群结构和遗传多样性方面非常有用。我们使用 18 个 SSR 标记来评估来自美国、韩国和日本的大豆蚜虫收集品的遗传多样性。蚜虫分别从美国的两个地点（印第安纳州和南达科他州）、韩国的两个地点（永川地区和天安市）和日本的一个地点（宇都宫市）收集。SSR 标记在区分来自不同国家的蚜虫收集品方面非常有效。每个种群内以及来自同一国家的种群之间的分化程度有限，即使在美国，两个收集地点之间的距离也超过 1200 公里。
