Can the tight co-speciation between reed beetles (Col., Chrysomelidae, Donaciinae) and their bacterial endosymbionts, which provide cocoon material, clarify the deeper phylogeny of the hosts?

Kölsch, Gregor; Pedersen, Bo Vest

doi:10.1016/j.ympev.2009.10.038

Cited by 22 publications

(24 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several examples exist for the presence of symbionts in insect Malpighian tubules (Goto et al ., ; Kölsch and Pedersen, ; Osborne et al ., ; Kuechler et al ., ). However, to the best of our knowledge, there is no description of a strict obligatory symbiont residing mainly in the Malpighian tubules.…”

Section: Discussionmentioning

confidence: 99%

“…Alternatively, but not mutually exclusively, the localization of Coxiella in the Malpighian tubules, the tick's organ responsible for the elimination of nitrogenous waste (Sonenshine, 1991), suggests involvement in the tick's nitrogen metabolism similar to other arthropod symbiosis systems (e.g. van Borm et al, 2002;Lopez-Sanchez et al, 2009;Sabree Several examples exist for the presence of symbionts in insect Malpighian tubules (Goto et al, 2006;Kölsch and Pedersen, 2010;Osborne et al, 2012;Kuechler et al, 2013). However, to the best of our knowledge, there is no description of a strict obligatory symbiont residing mainly in the Malpighian tubules.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Tissue tropism and vertical transmission ofCoxiellainRhipicephalus sanguineusandRhipicephalus turanicusticks

Lalzar

Friedmann

Gottlieb

2014

Environmental Microbiology

View full text Add to dashboard Cite

Arthropod symbionts present tissue tropism that corresponds to the nature of the association and the mode of transmission between host generations. In ticks, however, our knowledge of symbiont tissue tropism and function is limited. Here, we quantified and localized previously described Coxiella-like symbionts in several organs of the tick Rhipicephalus turanicus. Quantitative polymerase chain reaction revealed high densities of Coxiella in the female gonads, and both male and female Malpighian tubules. Using fluorescence in situ hybridization and transmission electron microscopy, we further showed that in the gonads of both Rh. turanicus and Rh. sanguineus, Coxiella does not colonize the primary oocytes but is found later in young and mature oocytes in a specific distribution, suggesting controlled vertical transmission. This method revealed the presence Coxiella in the distal part of the Malpighian tubules, suggesting a possible role in nitrogen metabolism. While testing Rickettsia symbionts, no specific tissue tropism was found, but a slightly higher densities in the tick gut. The low density of Rickettsia in the female ovaries suggests competition between Rickettsia and Coxiella for vertical transmission. The described tissue distribution supports an obligatory role for Coxiella in ticks.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Tissue tropism and vertical transmission ofCoxiellainRhipicephalus sanguineusandRhipicephalus turanicusticks

Lalzar

Friedmann

Gottlieb

2014

Environmental Microbiology

View full text Add to dashboard Cite

show abstract

“…In the majority of studies on symbionts, the primary hypothesis is that cospeciation occurs between host species and their symbionts (6,12,25). Thus, symbiont genetic variation should be correlated with that of its host.…”

Section: Discussionmentioning

confidence: 99%

Influence of Host Phylogeographic Patterns and Incomplete Lineage Sorting on Within-Species Genetic Variability in Wigglesworthia Species, Obligate Symbionts of Tsetse Flies

Symula

Marpuri

Bjornson

et al. 2011

Appl Environ Microbiol

View full text Add to dashboard Cite

Vertical transmission of obligate symbionts generates a predictable evolutionary history of symbionts that reflects that of their hosts. In insects, evolutionary associations between symbionts and their hosts have been investigated primarily among species, leaving population-level processes largely unknown. In this study, we investigated the tsetse (Diptera: Glossinidae) bacterial symbiont, Wigglesworthia glossinidia, to determine whether observed codiversification of symbiont and tsetse host species extends to a single host species (Glossina fuscipes fuscipes) in Uganda. To explore symbiont genetic variation in G. f. fuscipes populations, we screened two variable loci (lon and lepA) from the Wigglesworthia glossinidia bacterium in the host species Glossina fuscipes fuscipes (W. g. fuscipes) and examined phylogeographic and demographic characteristics in multiple host populations. Symbiont genetic variation was apparent within and among populations. We identified two distinct symbiont lineages, in northern and southern Uganda. Incongruence length difference (ILD) tests indicated that the two lineages corresponded exactly to northern and southern G. f. fuscipes mitochondrial DNA (mtDNA) haplogroups (P ‫؍‬ 1.0). Analysis of molecular variance (AMOVA) confirmed that most variation was partitioned between the northern and southern lineages defined by host mtDNA (85.44%). However, ILD tests rejected finer-scale congruence within the northern and southern populations (P ‫؍‬ 0.009). This incongruence was potentially due to incomplete lineage sorting that resulted in novel combinations of symbiont genetic variants and host background. Identifying these novel combinations may have public health significance, since tsetse is the sole vector of sleeping sickness and Wigglesworthia is known to influence host vector competence. Thus, understanding the adaptive value of these host-symbiont combinations may afford opportunities to develop vector control methods.

show abstract

“…As in the plataspid– I. capsulata association, they undergo efficient maternal transmission, achieved by egg‐smearing by mothers followed by ingestion by hatched larvae. Phylogenetic analyses indicate that this has resulted in long‐term cospeciation of hosts and symbionts (Kölsch & Pedersen, ).…”

Section: Structure and Evolution Of Gut Microbial Communities In Insectsmentioning

confidence: 99%

The gut microbiota of insects – diversity in structure and function

2013

View full text Add to dashboard Cite

Insect guts present distinctive environments for microbial colonization, and bacteria in the gut potentially provide many beneficial services to their hosts. Insects display a wide range in degree of dependence on gut bacteria for basic functions. Most insect guts contain relatively few microbial species as compared to mammalian guts, but some insects harbor large gut communities of specialized bacteria. Others are colonized only opportunistically and sparsely by bacteria common in other environments. Insect digestive tracts vary extensively in morphology and physicochemical properties, factors that greatly influence microbial community structure. One obstacle to the evolution of intimate associations with gut microorganisms is the lack of dependable transmission routes between host individuals. Here, social insects, such as termites, ants, and bees, are exceptions: social interactions provide opportunities for transfer of gut bacteria, and some of the most distinctive and consistent gut communities, with specialized beneficial functions in nutrition and protection, have been found in social insect species. Still, gut bacteria of other insects have also been shown to contribute to nutrition, protection from parasites and pathogens, modulation of immune responses, and communication. The extent of these roles is still unclear and awaits further studies.

show abstract

Can the tight co-speciation between reed beetles (Col., Chrysomelidae, Donaciinae) and their bacterial endosymbionts, which provide cocoon material, clarify the deeper phylogeny of the hosts?

Cited by 22 publications

References 80 publications

Tissue tropism and vertical transmission ofCoxiellainRhipicephalus sanguineusandRhipicephalus turanicusticks

Tissue tropism and vertical transmission ofCoxiellainRhipicephalus sanguineusandRhipicephalus turanicusticks

Influence of Host Phylogeographic Patterns and Incomplete Lineage Sorting on Within-Species Genetic Variability in Wigglesworthia Species, Obligate Symbionts of Tsetse Flies

The gut microbiota of insects – diversity in structure and function

Contact Info

Product

Resources

About