Facultative Symbiont Infections Affect Aphid Reproduction

Simon, Jean-Christophe; Boutin, Sébastien; Tsuchida, Tsutomu; Koga, Ryuichi; Le Gallic, Jean-François; Frantz, Adrien; Outreman, Yannick; Fukatsu, Takema
July 2011
PLoS ONE;2011, Vol. 6 Issue 7, p1
Academic Journal
Some bacterial symbionts alter their hosts reproduction through various mechanisms that enhance their transmission in the host population. In addition to its obligatory symbiont Buchnera aphidicola, the pea aphid Acyrthosiphon pisum harbors several facultative symbionts influencing several aspects of host ecology. Aphids reproduce by cyclical parthenogenesis whereby clonal and sexual reproduction alternate within the annual life cycle. Many species, including the pea aphid, also show variation in their reproductive mode at the population level, with some lineages reproducing by cyclical parthenogenesis and others by permanent parthenogenesis. While the role of facultative symbionts has been well studied during the parthenogenetic phase of their aphid hosts, very little is known on their possible influence during the sexual phase. Here we investigated whether facultative symbionts modulate the capacity to produce sexual forms in various genetic backgrounds of the pea aphid with controlled symbiont composition and also in different aphid genotypes from natural populations with previously characterized infection status and reproductive mode. We found that most facultative symbionts exhibited detrimental effects on their hosts fitness under sex-inducing conditions in comparison with the reference lines. We also showed that the loss of sexual phase in permanently parthenogenetic lineages of A. pisum was not explained by facultative symbionts. Finally, we demonstrated that Spiroplasma infection annihilated the production of males in the host progeny by inducing a male-killing phenotype, an unexpected result for organisms such as aphids that reproduce primarily through clonal reproduction.


Related Articles

  • Sex ratio adjustment and maternal condition in two aphid species. Dagg, Joachim L.; Vidal, Stefan // Behavioral Ecology & Sociobiology;Jan2004, Vol. 55 Issue 3, p231 

    We analyzed how offspring sex ratio varies with maternal condition in order to obtain evidence on the population structure in two aphid species with different life cycles. When fitness returns per unit investment differ for the production of daughters and sons, selection will favor an increasing...

  • Genome sequence of the endocellular bacterial symbiont of aphids Buchnera sp. APS. Shigenobu, Shuji; Watanabe, Hidemi; Hattori, Masahira; Sakaki, Yoshiyuki; Ishikawa, Hajime // Nature;9/7/2000, Vol. 407 Issue 6800, p81 

    Focuses on the symbiotic relationship between aphid species and the bacteria Buchnera. Discussion of the process by which the bacteria is maternally transmitted to eggs and embryos through host generation; Details of the genome sequence of Buchnera which contains genes essential to its host;...

  • Ecological aspects of new populations of the threatened Golden sun moth Synemon plana on the Victorian Volcanic Plains. Brown, Geoff; Tolsma, Arn; McNabb, Ed // Victorian Naturalist;Jun2012, Vol. 129 Issue 3, p77 

    Targeted surveys for the threatened Golden sun moth Synemon plana (Lepidoptera: Castniidae) (GSM) were conducted across the Victorian Volcanic Plains in the summers of 2009 and 2010 in order to address the lack of information for this moth in this bioregion. We aimed to locate new populations...

  • LETTER FROM THE EDITOR. Tywoniak, Ed // ETC: A Review of General Semantics;Jan2015, Vol. 72 Issue 1, p3 

    No abstract available.

  • Infectious parthenogenesis. Huigens, M.E.; Luck, R.F.; Klaassen, R.H.G.; Maas, M.F.P.M.; Timmermans, M.J.T.N.; Stouthamer, R. // Nature;5/11/2000, Vol. 405 Issue 6783, p178 

    Presents research that reports frequent horizontal transmission of Wolbachia bacteria from infected to uninfected wasp larvae sharing a common food source. Methods; Results; Conclusions.

  • Location of Symbionts in the Whitefly Bemisia tabaci Affects Their Densities during Host Development and Environmental Stress. Su, Qi; Xie, Wen; Wang, Shaoli; Wu, Qingjun; Ghanim, Murad; Zhang, Youjun // PLoS ONE;Mar2014, Vol. 9 Issue 3, p1 

    Bacterial symbionts often enhance the physiological capabilities of their arthropod hosts and enable their hosts to expand into formerly unavailable niches, thus leading to biological diversification. Many arthropods, including the worldwide invasive whitefly Bemisia tabaci, have individuals...

  • Life cycle, seasonal and interannual polymorphism in a monoecious aphid Cinara mordvilkoi (Hemiptera: Aphidoidea: Lachnidae). DURAK, ROMA // European Journal of Entomology;2014, Vol. 111 Issue 3, p357 

    This paper presents the first description of the life cycle of Cinara mordvilkoi and alary dimorphism of its males. There are 3 phases in its life cycle and during the course of a year 10 generations of parthenogenetic females are produced. The durations of development of subsequent generations...

  • Do ecological niches differ between sexual and asexual lineages of an aphid species? Gilabert, Aude; Simon, Jean-Christophe; Dedryver, Charles-Antoine; Plantegenest, Manuel // Evolutionary Ecology;Nov2014, Vol. 28 Issue 6, p1095 

    According to environmental-based theories on the maintenance of sexual reproduction, sexual and asexual populations may coexist if they occupy different ecological niches. The aphid Rhopalosiphum padi offers a good opportunity to test this hypothesis since sexual and asexual lineages show local...

  • Testing the Role of Habitat Isolation among Ecologically Divergent Gall Wasp Populations. Egan, Scott P.; Hood, Glen R.; Ott, James R. // International Journal of Ecology;2012, p1 

    Habitat isolation occurs when habitat preferences lower the probability of mating between individuals associated with differing habitats. While a potential barrier to gene flow during ecological speciation, the effect of habitat isolation on reproductive isolation has rarely been directly...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics