Vossbrinck Charles R, Andreadis Theodore G
The Connecticut Agricultural Experiment Station, 123 Huntington Street, P.O. Box 1106, New Haven, CT 06504, USA.
J Invertebr Pathol. 2007 Nov;96(3):270-3. doi: 10.1016/j.jip.2007.05.008. Epub 2007 May 29.
Comparative small subunit rDNA sequence analyses, indicate that Ovavesicula popilliae, a microsporidian parasite of the Japanese beetle, Popillia japonica, represents a distant sister group to Paranosema and Antonospora. These three genera represent a second major group (the Nosema/Vairimorpha clade representing the first) of Microsopridia which infect terrestrial insects, suggesting independent origins for both groups. Phylogenetic analyses of Ovavesicula and other Microsporidia having a multi-sporous sporogony reveal that this condition is found in several unrelated taxa implying either that multi-sporous sporogony is the ancestral condition for Microsporidia or that it has multiple origins.
比较小亚基核糖体DNA序列分析表明，日本金龟子芽孢微孢子虫（Ovavesicula popilliae），一种日本金龟子（Popillia japonica）的微孢子虫寄生虫，是帕拉诺氏微孢子虫属（Paranosema）和安托诺氏微孢子虫属（Antonospora）的远亲姐妹群。这三个属代表了感染陆生昆虫的微孢子虫的第二个主要类群（第一个是 Nosema/Vairimorpha 分支），表明这两个类群都有独立的起源。对芽孢微孢子虫属和其他具有多孢子孢子形成的微孢子虫的系统发育分析表明，这种情况在几个不相关的分类群中都存在，这意味着要么多孢子孢子形成是微孢子虫的原始状态，要么它有多个起源。
