Microbial Symbionts of Insects: Genetic Organization, Adaptive Role, and Evolution

Проворов, Н. А.; Онищук, О. П.

doi:10.1134/s002626171802011x

Cited by 8 publications

(3 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the process of evolution, the gut microbiomes of insects interact and co-evolve with their hosts [4]. The gut microbiota plays crucial roles in the growth, development and immunity of the host insects [5].…”

Section: Introductionmentioning

confidence: 99%

Diversity, Composition and Functional Inference of Gut Microbiota in Indian Cabbage white Pieris canidia (Lepidoptera: Pieridae)

Wang

Zhu²,

Fang

et al. 2020

Life

View full text Add to dashboard Cite

We characterized the gut microbial composition and relative abundance of gut bacteria in the larvae and adults of Pieris canidia by 16S rRNA gene sequencing. The gut microbiota structure was similar across the life stages and sexes. The comparative functional analysis on P. canidia bacterial communities with PICRUSt showed the enrichment of several pathways including those for energy metabolism, immune system, digestive system, xenobiotics biodegradation, transport, cell growth and death. The parameters often used as a proxy of insect fitness (development time, pupation rate, emergence rate, adult survival rate and weight of 5th instars larvae) showed a significant difference between treatment group and untreated group and point to potential fitness advantages with the gut microbiomes in P. canidia. These data provide an overall view of the bacterial community across the life stages and sexes in P. canidia.

show abstract

Section: Introductionmentioning

confidence: 99%

Diversity, Composition and Functional Inference of Gut Microbiota in Indian Cabbage white Pieris canidia (Lepidoptera: Pieridae)

Wang

Zhu²,

Fang

et al. 2020

Life

View full text Add to dashboard Cite

show abstract

“…Some of the most intimate symbiotic relationships involve bidirectional interactions whereby host and symbiont genomes each provide different pieces of genetic pathways necessary for survival (Figure i,j). This is seen in sap‐eating insects and their bacterial symbionts where gene pathways for metabolism, replication, transcription, and translation are derived from products of endosymbiotic bacteria that are vertically inherited (Figure j; Bennett & Moran, ; Gilbert et al, ; Husnik et al, ; Provorov & Onishchuk, ). For example, Buchnera protein HisC can replace the function of the branched‐chain amino acid transaminase in the aphid, whereas phenylalanine 4‐monooxygenase and aspartate transaminase in the aphid may replace Tyrosine A and Tyrosine B enzymes absent in Buchnera (Wilson et al, ).…”

Section: Hologenomes: a Spectrum Of Intimacymentioning

confidence: 99%

The concept of the hologenome, an epigenetic phenomenon, challenges aspects of the modern evolutionary synthesis

2019

View full text Add to dashboard Cite

John Tyler Bonner's call to re‐evaluate evolutionary theory in light of major transitions in life on Earth (e.g., from the first origins of microbial life to the evolution of sex, and the origins of multicellularity) resonate with recent discoveries on epigenetics and the concept of the hologenome. Current studies of genome evolution often mistakenly focus only on the inheritance of DNA between parent and offspring. These are in line with the widely accepted Neo‐Darwinian framework that pairs Mendelian genetics with an emphasis on natural selection as explanations for the evolution of biodiversity on Earth. Increasing evidence for widespread symbioses complicates this narrative, as is seen in Scott Gilbert's discussion of the concept of the holobiont in this series: Organisms across the tree of life coexist with substantial influence on one another through endosymbiosis, symbioses, and host‐associated microbiomes. The holobiont theory, coupled with observations from molecular studies, also requires us to understand genomes in a new way—by considering the interactions underlain by the genome of a host plus its associated microbes, a conglomerate entity referred to as the hologenome. We argue that the complex patterns of inheritance of these genomes coupled with the influence of symbionts on host gene expression make the concept of the hologenome an epigenetic phenomenon. We further argue that the aspects of the hologenome challenge of the modern evolutionary synthesis, which requires updating to remain consistent with Darwin's intent of providing natural laws that underlie the evolution of life on Earth.

show abstract

“…Endosymbionts usually have interactions with their hosts, they can not only cause diseases to the host, but also have many other effects on the host. For instance, plant endophyte can promote vegetative growth of host, increase biomass (yield), and increase the stress resistance of plants [7][8][9], while insect endosymbionts can improve nutrient metabolism of host insects, enhance host stress resistance and immunity [10][11][12], manipulate the reproduction of hosts, and influence insect growth, development, longevity, and evolution [13,14].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Ficus hirta Fig Endosymbionts Diversity and Species Composition

Liu

Fan

2021

Diversity

View full text Add to dashboard Cite

Endosymbionts living in plants and insects are pervasive. Ficus (Moraceae) has very special inflorescences (which we also call figs) enclosed like an urn, and such inflorescence is usually parasitized by fig wasps. Ficus breeds fig wasp larvae in its figs and adult fig wasps pollinate for Ficus, Ficus and its obligated pollinator formed fig-fig wasp mutualism. Previous studies have found that this confined environment in figs may have provided protection for fig wasps and that this has left some imprints on the genome of fig wasps during the coevolution history of figs and fig wasps. Research on the diversity of both bacteria and fungi in figs are fewer. Our study explored the diversity of endosymbionts in Ficus hirta figs. We utilized high-throughput sequencing and biological database to identify the specific microorganism in figs, then conducted microorganism communities’ diversity analysis and function annotation analysis. As a result, we identified the dominant endosymbionts in figs, mainly some insect internal parasitic bacteria and fungi, plant pathogen, endophytes, and saprotroph. Then we also found bacteria in Ficus hirta figs were more diversified than fungi, and bacteria communities in female figs and functional male figs were different. These findings may give us more insight into the coevolution and interaction among endosymbiont, fig, and fig wasp.

show abstract

Microbial Symbionts of Insects: Genetic Organization, Adaptive Role, and Evolution

Cited by 8 publications

References 59 publications

Diversity, Composition and Functional Inference of Gut Microbiota in Indian Cabbage white Pieris canidia (Lepidoptera: Pieridae)

Diversity, Composition and Functional Inference of Gut Microbiota in Indian Cabbage white Pieris canidia (Lepidoptera: Pieridae)

The concept of the hologenome, an epigenetic phenomenon, challenges aspects of the modern evolutionary synthesis

Analysis of Ficus hirta Fig Endosymbionts Diversity and Species Composition

Contact Info

Product

Resources

About