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- W2955785959 abstract "The small brown planthopper Laodelphax striatellus (Hemiptera: Delphacidae) is reported to have the endosymbiont Wolbachia, which shows a strong cytoplasmic incompatibility (CI) between infected males and uninfected females. In the 2000s, female-biased L. striatellus populations were found in Taiwan, and this sex ratio distortion was the result of male-killing induced by the infection of another endosymbiont, Spiroplasma. Spiroplasma infection is considered to negatively affect both L. striatellus and Wolbachia because the male-killing halves the offspring of L. striatellus and hinders the spread of Wolbachia infection via CI. Spiroplasma could have traits that increase the fitness of infected L. striatellus and/or coexisting organisms because the coinfection rates of Wolbachia and Spiroplasma were rather high in some areas. In this study, we investigated the influences of the infection of these two endosymbionts on the development, reproduction, and insecticide resistance of L. striatellus in the laboratory. Our results show that the single-infection state of Spiroplasma had a negative influence on the fertility of L. striatellus, while the double-infection state had no significant influence. At late nymphal and adult stages, the abundance of Spiroplasma was lower in the double-infection state than in the single-infection state. In the double-infection state, the reduction of Spiroplasma density may be caused by competition between the two endosymbionts, and the negative influence of Spiroplasma on the fertility of host may be relieved. The resistance of L. striatellus to four insecticides was compared among different infection states of endosymbionts, but Spiroplasma infection did not contribute to increase insecticide resistance. Because positive influences of Spiroplasma infection were not found in terms of the development, reproduction, and insecticide resistance of L. striatellus, other factors improving the fitness of Spiroplasma-infected L. striatellus may be related to the high frequency of double infection in some L. striatellus populations." @default.
- W2955785959 created "2019-07-12" @default.
- W2955785959 creator A5000927344 @default.
- W2955785959 creator A5008471527 @default.
- W2955785959 creator A5051260006 @default.
- W2955785959 creator A5089678035 @default.
- W2955785959 date "2019-06-24" @default.
- W2955785959 modified "2023-10-14" @default.
- W2955785959 title "Influences of two coexisting endosymbionts, CI‐inducing<i>Wolbachia</i>and male‐killing<i>Spiroplasma</i>, on the performance of their host<i>Laodelphax striatellus</i>(Hemiptera: Delphacidae)" @default.
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- W2955785959 doi "https://doi.org/10.1002/ece3.5392" @default.
- W2955785959 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6662331" @default.
- W2955785959 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31380084" @default.