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A substantial literature has developed on facultative endosymbionts of insects, often portrayed as having large effects on their hosts, ranging from mutualistic to parasitic. The aphid endosymbiont Regiella insecticola occurs naturally in Myzus persicae and has potential biocontrol applications. Here, we examined the effects of native Regiella in two clones of M. persicae from Australia collected two decades apart, to assess w...
Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened Species by assessing the vulnerability of 256 marine megafauna species to 23 at‐sea threat...
Endosymbionts impact ladybird predation rates of aphids in a temperature-dependent mannerNARA Subscribed
Aphids are pests that cause major economic losses to growers on a global scale. Current management strategies rely heavily on pesticides, but some effective pesticides are being withdrawn, and the efficiency of remaining pesticides is decreasing, as aphids build up resistance. Biological control using predators can provide an important sustainable alternative to pesticides under some circumstances, and the deliberate introduct...
Deleterious effects of the endosymbiont Rickettsiella viridis in Myzus persicae are environmentally dependentNARA Subscribed
Endosymbionts living within insect cells can modify host fitness and could provide new tools for pest control. The endosymbiont Rickettsiella viridis has been transferred experimentally into the green peach aphid, Myzus persicae, a globally important agricultural pest. This Rickettsiella spreads via vertical and horizontal transmission and induces host fitness costs which could potentially suppress pest populations. Endosymbio...
Influence of genetic and environmental factors on the success of endosymbiont transfers in pest aphidsNARA Subscribed
There is increasing interest in exploring how endosymbionts could be useful in pest control, including in aphids, which can carry a diversity of endosymbionts. Endosymbionts often have a large impact on host traits, and their presence can be self‐sustaining. Identifying useful host‐endosymbiont combinations for pest control is facilitated by the transfer of specific endosymbionts into target species, particularly if the specie...
A diversity of endosymbionts across Australian aphids and their persistence in aphid culturesNARA Subscribed
There is increasing interest in the use of endosymbionts in pest control, which will benefit from the identification of endosymbionts from potential donor species for transfer to pest species. Here, we screened for endosymbionts in 123 Australian aphid samples across 32 species using 16S DNA metabarcoding. We then developed a qPCR method to validate the metabarcoding data set and to monitor endosymbiont persistence in aphid cu...
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