The joint evolutionary histories of Wolbachia and mitochondria in Hypolimnas bolina

Charlat, Sylvain; Duplouy, Anne; Hornett, Emily A.; Dyson, Emily A.; Davies, Neil; Roderick, George; Wedell, Nina; Hurst, Gregory D. D.

doi:10.1186/1471-2148-9-64

Cited by 96 publications

(110 citation statements)

References 34 publications

(42 reference statements)

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“…The parameter ranges that produced an advantage for MSD species in our simulations overlap with those quantified from many empirical studies. Genetic cytoplasmic distorters normally exhibit perfect maternal vertical transmission, and near‐perfect or perfect transmission rates near have been documented in parasitic systems as well (Charlat et al., 2009; Jiggins, Randerson, Hurst, & Majerus, 2002). While some distorters are capable of completely feminizing broods, many distorters have more modest impacts, and distorter brood sex ratios frequently range from 60% to 80% female (Hassan, Idris, & Majerus, 2012; Mercot et al., 1995; Rigaud et al., 1999; Vala, Van Opijnen, Breeuwer, & Sabelis, 2003).…”

Section: Discussionmentioning

confidence: 99%

Intragenomic conflict produces sex ratio dynamics that favor maternal sex ratio distorters

Rood

Freedberg

2016

Ecology and Evolution

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Maternal sex ratio distorters (MSDs) are selfish elements that enhance their transmission by biasing their host's sex allocation in favor of females. While previous models have predicted that the female‐biased populations resulting from sex ratio distortion can benefit from enhanced productivity, these models neglect Fisherian selection for nuclear suppressors, an unrealistic assumption in most systems. We used individual‐based computer simulation modeling to explore the intragenomic conflict between sex ratio distorters and their suppressors and explored the impacts of these dynamics on population‐level competition between species characterized by MSDs and those lacking them. The conflict between distorters and suppressors was capable of producing large cyclical fluctuations in the population sex ratio and reproductive rate. Despite fitness costs associated with the distorters and suppressors, MSD populations often exhibited enhanced productivity and outcompeted non‐MSD populations in single and multiple‐population competition simulations. Notably, the conflict itself is beneficial to the success of populations, as sex ratio oscillations limit the competitive deficits associated with prolonged periods of male rarity. Although intragenomic conflict has been historically viewed as deleterious to populations, our results suggest that distorter–suppressor conflict can provide population‐level advantages, potentially helping to explain the persistence of sex ratio distorters in a range of taxa.

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Section: Discussionmentioning

confidence: 99%

Intragenomic conflict produces sex ratio dynamics that favor maternal sex ratio distorters

Rood

Freedberg

2016

Ecology and Evolution

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“…Indeed, relatively complete scenarios explaining natural infection frequencies are available in very few cases, including: (1) the w Ri infection in D. simulans , which is maintained at a high level (about 93%) in most populations by a balance between fairly intense CI but imperfect maternal transmission (Turelli & Hoffmann 1991, 1995; Carrington et al 2011; Kriesner et al 2013); (2) the infections in the mosquitoes Culex pipiens (Barr 1980; Rasgon & Scott 2003) and Ae. albopictus (Kittayapong et al 2002) that produce complete CI and exhibit essentially perfect maternal infection, so that almost all individuals in nature are infected; (3) the monomorphic infections in the D. paulistorum species complex, which cause CI, contribute to assortative mating and have evolved to obligate mutualism while persisting through cladogenesis (Miller et al 2010); (4) the imperfectly transmitted male-killing (MK) strain in D. innubila that confers a selective advantage of about 5% and is maintained at ∼35% infection frequency (Dyer et al 2004); and (5) the MK infection in the butterfly Hypolimnas bolina , which shows both high infection frequency and transmission efficiency (Charlat et al 2009). In other species, such as D. melanogaster and D. yakuba , we know that Wolbachia persists despite imperfect maternal transmission and no appreciable reproductive manipulation (Harcombe & Hoffmann 2004; Charlat et al 2004; but the fitness benefits maintaining the infection are not known with certainty, although plausible candidates exist (Teixeira et al 2008; Brownlie et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Wolbachia do not live by reproductive manipulation alone: infection polymorphism in Drosophila suzukii and D. subpulchrella

et al. 2014

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Drosophila suzukii recently invaded North America and Europe. Populations in Hawaii, California, New York and Nova Scotia are polymorphic for Wolbachia, typically with <20% infection frequency. The Wolbachia in D. suzukii, denoted wSuz, is closely related to wRi, the variant prevalent in continental populations of D. simulans. wSuz is also nearly identical to Wolbachia found in D. subpulchrella, plausibly D. suzukii's sister species. This suggests vertical Wolbachia transmission through cladogenesis (“cladogenic transmission”). The widespread occurrence of 7-20% infection frequencies indicates a stable polymorphism. wSuz is imperfectly maternally transmitted, with wild infected females producing on average 5-10% uninfected progeny. As expected from its low frequency, wSuz produces no cytoplasmic incompatibility (CI), i.e., no elevated embryo mortality when infected males mate with uninfected females, and no appreciable sex-ratio distortion. The persistence of wSuz despite imperfect maternal transmission suggests positive fitness effects. Assuming a balance between selection and imperfect transmission, we expect a fitness advantage on the order of 20%. Unexpectedly, Wolbachia-infected females produce fewer progeny than do uninfected females. We do not yet understand the maintenance of wSuz in D. suzukii. The absence of detectable CI in D. suzukii and D. subpulchrella makes it unlikely that CI-based mechanisms could be used to control this species without transinfection using novel Wolbachia. Contrary to their reputation as horizontally transmitted reproductive parasites, many Wolbachia infections are acquired through introgression or cladogenesis and many cause no appreciable reproductive manipulation. Such infections, likely to be mutualistic, may be central to understanding the pervasiveness of Wolbachia among arthropods.

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“…by Charlat et al (2009), Dasmahapatra et al (2010), Muñoz et al (2011), Mutanen et al (2012), Nieukerken et al (2012) and Ritter et al (2013). In U. rhododendronalis and U. austriacalis , geographically well-separated COI groups are found.…”

Section: Discussionmentioning

confidence: 91%

Deep intraspecific DNA barcode splits and hybridisation in the Udea alpinalis group (Insecta, Lepidoptera, Crambidae) – an integrative revision

Mally¹,

Huemer²,

Nuß³

2018

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The analysis of mitochondrial COI data for the European-Centroasian montane Udea alpinalis species group finds deep intraspecific splits. Specimens of U. austriacalis and U. rhododendronalis separate into several biogeographical groups. These allopatric groups are not recovered in the analyses of the two nuclear markers wingless and Elongation factor 1-alpha, except for U. austriacalis from the Pyrenees and the French Massif Central. The latter populations are also morphologically distinct and conspecific with Scopula donzelalis Guenée, 1854, which is removed from synonymy and reinstated as Udea donzelalis (Guenée, 1854) stat. rev. Furthermore, Udea altaica (Zerny, 1914), stat. n. from the Mongolian central Altai mountains, U. juldusalis (Zerny, 1914), stat. n. from the Tian Shan mountains of Kazakhstan, Kyrgyzstan and NW China, and U. plumbalis (Zerny, 1914), stat. n. from the Sayan Mountains of Northern Mongolia are raised to species level, and lectotypes are designated. Evidence of introgression of U. alpinalis into U. uliginosalis at three localities in the Central Alps is presented. A screening for Wolbachia using the markers wsp, gatB and ftsZ was negative for the U. alpinalis species group, but Wolbachia was found in single specimens of U. fulvalis and U. olivalis (both in the U. numeralis species group). We do not find evidence for the conjecture of several authors of additional subspecies in U. rhododendronalis, and synonymise U. rhododendronalis luquetalis Leraut, 1996, syn. n. and U. r. ventosalis Leraut, 1996, syn. n. with the nominal U. rhododendronalis (Duponchel, 1834).

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The joint evolutionary histories of Wolbachia and mitochondria in Hypolimnas bolina

Cited by 96 publications

References 34 publications

Intragenomic conflict produces sex ratio dynamics that favor maternal sex ratio distorters

Intragenomic conflict produces sex ratio dynamics that favor maternal sex ratio distorters

Wolbachia do not live by reproductive manipulation alone: infection polymorphism in Drosophila suzukii and D. subpulchrella

Deep intraspecific DNA barcode splits and hybridisation in the Udea alpinalis group (Insecta, Lepidoptera, Crambidae) – an integrative revision

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