Facultative Symbiont Infections Affect Aphid Reproduction
Author Information
Author(s): Simon Jean-Christophe, Boutin Sébastien, Tsuchida Tsutomu, Koga Ryuichi, Le Gallic Jean-François, Frantz Adrien, Outreman Yannick, Fukatsu Takema
Primary Institution: INRA, UMR 1099 INRA-Agrocampus Ouest-Université de Rennes 1
Hypothesis
Do facultative symbionts modulate the capacity to produce sexual forms in various genetic backgrounds of the pea aphid?
Conclusion
Facultative symbionts negatively impact the reproductive fitness of their aphid hosts, particularly during the sexual phase.
Supporting Evidence
- Most facultative symbionts exhibited detrimental effects on their hosts' fitness under sex-inducing conditions.
- The loss of sexual phase in permanently parthenogenetic lineages was not explained by facultative symbionts.
- Spiroplasma infection annihilated the production of males in the host progeny by inducing a male-killing phenotype.
- Facultative symbionts did not influence the reproductive mode variation in aphids.
Takeaway
Some tiny bugs called aphids have friends that live inside them, and these friends can change how many babies they have. Sometimes, these friends make it harder for the aphids to have baby boys.
Methodology
The study involved manipulating aphid genotypes with different symbiont compositions and conducting sex induction experiments under controlled conditions.
Potential Biases
Potential bias due to the artificial nature of symbiont transfections and the limited genetic backgrounds tested.
Limitations
The study focused on specific aphid genotypes and may not represent all aphid populations.
Participant Demographics
Pea aphid genotypes collected from various locations in France and the UK.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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