Feminizing Wolbachiaand the evolution of sex determination in isopods*

Bouchon, Didier; Cordaux, Richard; Grève, Pierre

doi:10.1201/9781420064117.ch12

Cited by 96 publications

(90 citation statements)

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“…In any event, we show that the pillbug chromosome in which the f element is inserted has effectively become a new W sex chromosome. Our results thus support an evolutionary scenario in which Wolbachia endosymbionts triggered a turnover of sex chromosomes in A. vulgare (15)(16)(17)20), first by inducing the loss of the native W sex chromosome under cytoplasmic sex determination and then by introducing a new sex-determining region elsewhere in the nuclear genome (Fig. 5).…”

Section: Resultssupporting

confidence: 67%

“…It is predicted by models, and has been confirmed empirically, that ZW genetic females will be eliminated from pillbug lines infected by Wolbachia, causing the loss of the W sex chromosome (20). This is a perfect example of transition from chromosomal to cytoplasmic sex determination (15)(16)(17). All individuals are then ZZ genetic males; those inheriting Wolbachia develop as females, whereas uninfected embryos develop as males.…”

mentioning

confidence: 99%

“…The common pillbug Armadillidium vulgare (Crustacea, Isopoda) has a female heterogametic system of sex determination with ZW females and ZZ males (15)(16)(17); however, many A. vulgare females produce female-biased progenies owing to intracellular, maternally inherited Wolbachia bacterial endosymbionts (14)(15)(16)(17). These cytoplasmic sex ratio distorters induce the feminization of genetic males into phenotypic females (18,19).…”

mentioning

confidence: 99%

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Birth of a W sex chromosome by horizontal transfer of Wolbachia bacterial symbiont genome

Leclercq

Thézé

Chebbi

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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116

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Sex determination is a fundamental developmental pathway governing male and female differentiation, with profound implications for morphology, reproductive strategies, and behavior. In animals, sex differences between males and females are generally determined by genetic factors carried by sex chromosomes. Sex chromosomes are remarkably variable in origin and can differ even between closely related species, indicating that transitions occur frequently and independently in different groups of organisms. The evolutionary causes underlying sex chromosome turnover are poorly understood, however. Here we provide evidence indicating that Wolbachia bacterial endosymbionts triggered the evolution of new sex chromosomes in the common pillbug Armadillidium vulgare. We identified a 3-Mb insert of a feminizing Wolbachia genome that was recently transferred into the pillbug nuclear genome. The Wolbachia insert shows perfect linkage to the female sex, occurs in a male genetic background (i.e., lacking the ancestral W female sex chromosome), and is hemizygous. Our results support the conclusion that the Wolbachia insert is now acting as a female sex-determining region in pillbugs, and that the chromosome carrying the insert is a new W sex chromosome. Thus, bacteria-to-animal horizontal genome transfer represents a remarkable mechanism underpinning the birth of sex chromosomes. We conclude that sex ratio distorters, such as Wolbachia endosymbionts, can be powerful agents of evolutionary transitions in sex determination systems in animals.sex chromosome | horizontal transfer | Wolbachia | endosymbiont | isopod crustacean

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Section: Resultssupporting

confidence: 67%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Birth of a W sex chromosome by horizontal transfer of Wolbachia bacterial symbiont genome

Leclercq

Thézé

Chebbi

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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116

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“…In arthropods, feminization induced by Wolbachia was first described in isopod crustaceans (Bouchon et al, 2008;Martin et al, 1973;Rigaud et al, 1999) and, later, the phenomenon was studied in the lepidopteran species Eurema hecabe, Ostrinia scapulalis and O. furnacalis, and the hemipteran species Zyginidia pullula (Hiroki et al, 2002;Kageyama & Traut, 2003;Negri et al, 2006;Sakamoto et al, 2007). In Crustacea, which are phylogenetically close to insects, sex differentiation and development of secondary sexual characteristics are driven by an androgenic hormone (AH), secreted by the androgenic gland (AG), whose action inhibits female differentiation (Legrand et al, 1987;Sagi & Khalaila, 2001).…”

Section: Wolbachia and The Feminization Of The Arthropod Hostmentioning

confidence: 99%

Sex Steroids in Insects and the Role of the Endosymbiont Wolbachia:A New Perspective

Negri¹,

Pellecchia²

2012

Sex Hormones

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“…Host name References Lepidoptera (Hiroki et al, 2002;Kageyama et al, 2002;Narita et al, 2007) Hemiptera (Negri et al, 2006) Terrestrial Isopods (Verne et al, 2007;Bouchon et al, 2008) (Brower, 1976;Kellen et al, 1981) Hymenoptera (Reed & Werren, 1995) Homoptera (Noda, 1987) (Yamada et al, 2007). Therefore it is necessary to investigate this phenotype in all insect communities.…”

Section: Table3 Feminization Identified Into Different Hostsmentioning

confidence: 99%

A way of reproductive manipulation and biology of Wolbachia pipientis

Ali¹,

Hou²,

Tang³

et al. 2016

JEBAS

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KEYWORDS Wolbachia Endosymbiotic bacteriaIntegrated pest management (IPM) Coleoptera ABSTRACTThe endo-symbiotic relationship between microorganism and eukaryotes are very common and has been broadly investigated from all insect species. The genus Wolbachia are obligatory intracellular bacteria that induce evolutionary alterations and have been frequently reported in egg cytoplasm's of various invertebrates including insects, spiders, mites, scorpions, crustaceans and nematodes, which exert a profound impact on host biology and behavior through a number of phenotypic alternations. Due to its ubiquitous phenotypic behavior, Wolbachia becomes a novel and promising natural micro-biocontrol agent to induce cytoplasmic incompatibility, killing of male embryos, parthenogenesis, and feminization. Autonomous transgenic capability, survival on several host species and the ability to modify the host reproductive systems makes it the most prominent and focusing scientific genomic research from last few decades. The aim of this review is to summarize the significance and recent discoveries of Wolbachia related to various arthropods which lead positive directions to be exploited in future for integrated pest management (IPM) strategies. Further, this review also discussed the biology, phylogeny, distributions, classifications and types of Wolbachia infections on insect orders and coleopterans in particular.

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Feminizing Wolbachiaand the evolution of sex determination in isopods*

Cited by 96 publications

References 0 publications

Birth of a W sex chromosome by horizontal transfer of Wolbachia bacterial symbiont genome

Birth of a W sex chromosome by horizontal transfer of Wolbachia bacterial symbiont genome

Sex Steroids in Insects and the Role of the Endosymbiont Wolbachia:A New Perspective

A way of reproductive manipulation and biology of Wolbachia pipientis

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