Widespread infections by the bacterial endosymbiont Cardinium in arachnids
Widespread infections by the bacterial endosymbiont Cardinium in arachnids
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DOI：
10.1636/sh08-05.1
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发表时间：
2009-01-01
影响因子：
1
通讯作者：
Goodacre, Sara L.
中科院分区：
文献类型：
--
作者：
Martin, Oliver Y.;Goodacre, Sara L.
母系遗传的细菌内共生体，如沃尔巴克氏体，可能对其节肢动物宿主的繁殖产生重大影响。以前的大多数研究都集中在对昆虫的影响上，但最近的证据表明，内共生菌沃尔巴克氏体、立克次体和螺旋体在蜘蛛中也很常见。这种感染可能解释了这一群体中观察到的生殖特征，如性别比例失衡或孤雌生殖的报道。在这里，我们测试了蜘蛛和一系列其他蛛形纲动物是否感染了另一种，最近被描述为母体获得的内共生菌，红雀。我们提供的数据来自对野外收集的蜘蛛和其他蛛形纲动物的调查，并从博物馆收藏中获得。红柱头虫的感染被发现非常普遍，可能比其他节肢动物更普遍。讨论了这一研究结果以及今后研究内生共生-蛛形动物相互作用的方向。
Maternally inherited bacterial endosymbionts such as Wolbachia can potentially have a major impact on the reproduction of their arthropod hosts. Most previous studies have focused on the effects on insects, but recent evidence demonstrates that the endosymbionts Wolbachia, Rickettsia, and Spiroplasma are also common in spiders. Such infections potentially explain observed characteristics of reproduction in this group such as skewed sex ratios or reported cases of parthenogenesis. Here we test spiders and a range of other arachnids for infection with another, more recently described maternally acquired endosymbiont, Cardinium. We present data from a survey of spiders and other arachnids collected in the field and obtained from museum collections. Infections with Cardinium are found to be very widespread, perhaps more so than in other arthropod groups. The consequences of this and directions for future research on endosymbiont-arachnid interactions are discussed.