<i>Cardinium</i> infection alters cotton defense and detoxification metabolism of its whitefly host

Liu, Ying; Yang, Kun; Wang, Jicheng; Chu, Dong

doi:10.1111/1744-7917.13086

Cited by 3 publications

(1 citation statement)

References 50 publications

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“…, 2011; Liu et al. , 2022). Previously, we reported that there were 2 infection density patterns (high and low) of Cardinium in B. tabaci MED, and we clarified the impacts of high temperature on the host bacterial communities (Yang et al.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous distribution of Cardinium in whitefly populations is associated with host nuclear genetic background

Liu

Wei

et al. 2023

Insect Science

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Inherited bacterial symbionts are very common in arthropods, but infection frequency can vary widely among populations. Experiments and interpopulation comparisons suggest that host genetic background might be important in explaining this variation. Our extensive field investigation showed that the infection pattern of the facultative symbiont Cardinium was heterogeneous across geographical populations of the invasive whitefly Bemisia tabaci Mediterranean (MED) in China, with genetic nuclear differences evident in 2 of the populations: 1 with a low infection rate (SD line) and 1 with a high infection rate (HaN line). However, whether the heterogeneous frequency of Cardinium is associated with the host genetic background remains poorly understood. Here, we compared the fitness of the Cardinium‐infected and uninfected sublines with similar nuclear genetic backgrounds from SD and HaN lines, respectively, and further determine whether host extranuclear or nuclear genotype influenced the Cardinium–host phenotype by performing 2 new introgression series of 6 generations between SD and HaN lines (i.e., Cardinium‐infected females of SD were backcrossed with uninfected males of HaN, and vice versa). The results showed that Cardinium provides marginal fitness benefits in the SD line, whereas Cardinium provides strong fitness benefits in the HaN line. Further, both Cardinium and the Cardinium–host nuclear interaction influence the fecundity and pre‐adult survival rate of B. tabaci, whereas the extranuclear genotype does not. In conclusion, our results provide evidence that Cardinium‐mediated fitness effects were closely associated with the host genetic background, which provides a fundamental basis for understanding the mechanism underlying the heterogeneous distribution of Cardinium in B. tabaci MED populations across China.

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Section: Introductionmentioning

confidence: 99%

Heterogeneous distribution of Cardinium in whitefly populations is associated with host nuclear genetic background

Liu

Wei

et al. 2023

Insect Science

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Microbial changes and associated metabolic responses modify host plant adaptation in Stephanitis nashi

Li,

Wang,

Xie

et al. 2024

Insect Science

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Symbiotic microorganisms are essential for the physiological processes of herbivorous pests, including the pear lace bug Stephanitis nashi, which is known for causing extensive damage to garden plants and fruit trees due to its exceptional adaptability to diverse host plants. However, the specific functional effects of the microbiome on the adaptation of S. nashi to its host plants remains unclear. Here, we identified significant microbial changes in S. nashi on 2 different host plants, crabapple and cherry blossom, characterized by the differences in fungal diversity as well as bacterial and fungal community structures, with abundant correlations between bacteria or fungi. Consistent with the microbiome changes, S. nashi that fed on cherry blossom demonstrated decreased metabolites and downregulated key metabolic pathways, such as the arginine and mitogen‐activated protein kinase signaling pathway, which were crucial for host plant adaptation. Furthermore, correlation analysis unveiled numerous correlations between differential microorganisms and differential metabolites, which were influenced by the interactions between bacteria or fungi. These differential bacteria, fungi, and associated metabolites may modify the key metabolic pathways in S. nashi, aiding its adaptation to different host plants. These results provide valuable insights into the alteration in microbiome and function of S. nashi adapted to different host plants, contributing to a better understanding of pest invasion and dispersal from a microbial perspective.

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Species-resolved metagenomics reveal ecological effects on the microbiota in a global pest, the whitefly, using 2bRAD-M

Yang,

Zhang,

et al. 2024

Preprint

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Background Microbial communities including symbionts play vital roles in insect hosts. Abiotic factors, especially ecological factors also have significant influence on the structure of the microbiome and the abundance of symbionts within hosts. However, the effects of the bacterial symbionts and ecological factors on the microbiota in host whitefly remains poorly understood. Results In this study, 49 Bemisia tabaci MED populations collected in 23 locations around the world were sequenced using 2bRAD-M, to explore the relationships among ecological factors, symbionts and microbial diversities in whiteflies. Results revealed that microbial community structures significantly differed in the different geographical B. tabaci MED populations, and the abundance of many symbionts including Portiera, Hamiltonella, Rickettsia, Cardinium, and Wolbachia, significantly influenced with one another. Also, the diversity of bacterial communities in whiteflies were significantly affected by the relative abundance of symbionts including Cardinium and Hamiltonella. Meanwhile, environmental factors including temperature, precipitation, longitude and latitude significantly influenced the abundance of many symbionts and the diversity of bacterial communities in B. tabaci MED. Conclusions Overall, our results revealed complex interactions among ecological factors, among ecological factors, microbiota diversity and symbionts in B. tabaci MED. This helps to comprehend the complex interactions among these factors in insect hosts.

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Cardinium infection alters cotton defense and detoxification metabolism of its whitefly host

Cited by 3 publications

References 50 publications

Heterogeneous distribution of Cardinium in whitefly populations is associated with host nuclear genetic background

Heterogeneous distribution of Cardinium in whitefly populations is associated with host nuclear genetic background

Microbial changes and associated metabolic responses modify host plant adaptation in Stephanitis nashi

Species-resolved metagenomics reveal ecological effects on the microbiota in a global pest, the whitefly, using 2bRAD-M

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