A screen for bacterial endosymbionts in the model organisms Tribolium castaneum, T. confusum, Callosobruchus maculatus, and related species

Abstract

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Prevalence and diversity of Wolbachia bacteria infecting insect pests of stored products

“…Conversely, no infections were detected in populations of the beetle Tribolium castaneum (Herbst) (Tenebrionidae) (n ¼ 9) or of the moth Plodia interpunctella (Hubner) (n ¼ 5). These results agree with previous reports for these species (Goodacre et al, 2015;Kageyama et al, 2010;Wade and Stevens, 1985). In contrast to this general pattern, infected (þ) and uninfected (À) populations were detected for T. confusum Jaquelin Du Val (Tenebrionidae) (15þ, 1À), and for Sitophilus zeamais Motschulsky (1þ, 2À) and Sitophilus oryzae (L.) (1þ, 6À) (Curculionidae).…”

“…In contrast to this general pattern, infected (þ) and uninfected (À) populations were detected for T. confusum Jaquelin Du Val (Tenebrionidae) (15þ, 1À), and for Sitophilus zeamais Motschulsky (1þ, 2À) and Sitophilus oryzae (L.) (1þ, 6À) (Curculionidae). Uninfected and infected populations previously have been reported for T. confusum (Goodacre et al, 2015;Wade and Stevens, 1985), S. zeamais (Heddi et al, 1999;Kageyama et al, 2010), and for Sitophilus granarium (Linnaeus) and Sitophilus oryzae (Linnaeus) (Heddi et al, 1999).…”

“…Similarly, populations of mixed infection status may have been used to establish laboratory colonies, in which infections subsequently became lost or fixed. In this regard, we note that the current and other studies (Goodacre et al, 2015;Kageyama et al, 2010;Wade and Stevens, 1985) have relied almost solely on use of laboratory colonies for source material. Alternatively, all individuals in a population may be infected, but Wolbachia titer levels are below detection thresholds (Arthofer et al, 2009;Hughes et al, 2011).…”

“…Using antibiotics, removal of Rickettsia causes host sterility (Yusuf and Turner, 2004), whereas removal of Cardinium reduces immature survival and fecundity (Wang et al, 2008). Although Wolbachia has not been reported in T. castaneum, this stored product pest has been reported to harbor infections of Spiroplasma and Rickettsia (Goodacre et al, 2015).…”

Peer Review #1 of "Current state of knowledge on Wolbachia infection among Coleoptera: a systematic review (v0.1)"

“…Curculionidae and Chrysomelidae species were respectively examined per article. All species of Hydraenidae and Buprestidae were included in only single articles (Sontowski et al, 2015), whereas limited numbers of species of Coccinellidae and Tenebrionidae were examined in several articles (Hurst et al, 1999;Fialho & Stevens 1996, 1997, 2000Majerus et al, 2000;et al, Weinert et al, 2007;Elnagdy et al, 2013;Ming et al, 2015;Goodacre et al, 2015;Kageyama et al, 2015;Li et al, 2015;Li et al, 2016;Dudek et al;. Wolbachia infection was only studied more than once in 20 species.…”