A New Tunga (Siphonaptera) from the Nearctic Region with Description of All Stages1

Barnes, Allan M.; Radovsky, Frank J.

doi:10.1093/jmedent/6.1.19

Cited by 27 publications

(28 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…6). Such formation probably permits telescopic and elastic movements, favouring the fast expulsion of the eggs, as observed in other Tunga species (Jordan, 1962;Barnes & Radovsky, 1969).…”

Section: Process Of Neosomymentioning

confidence: 69%

“…5); these are normally located. It's not the instance in two, taxonomically or biologically related fleas Tunga monositus Barnes &Radowsky, 1969 andPhacopsylla inexpectata (Smit, 1950) teste Beaucournu et al, 1996. These organs have never previously been seen directly using Hoyer's medium.…”

Section: Resultsmentioning

confidence: 99%

“…To study the sequence of the developmental phases of the females during pregnancy, a stereomicroscope was used to observe specimens extracted from the host, after removing tissue remnants and fixing the fleas in 10 % buffered formalin. For identification of the different organs and systems we used the above-mentioned manual (Rothschild et al, 1986) for the internal structures of Siphonaptera and also papers by Jordan (1962) and Barnes & Radovsky (1969) on the morphology of T. caecigena and T. monositus, respectively.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Anatomy ofTunga trimamillataPampiglioneet al., 2002 (Insecta, Siphonaptera, Tungidae) and developmental phases of the gravid female

et al. 2005

View full text Add to dashboard Cite

Summary :This paper deals with some internal anatomical features observed in histological sections and freshly dissected mounts of Tunga trimamillata, a Siphonaptera recently discovered in Andean regions of Ecuador from several mammals, including man. It was possible to study in males and also non-gravid and gravid females, the location and anatomy of several organs not previously described for this species: the testes, epididymis, ganglia, Malpighian tubules, eyes, rectal ampulla with one of its pads and structures which could be interpreted as midgut diverticula, whose presence has not been recorded in the Siphonaptera. The process of neosomy in the female during pregnancy is illustrated by photographs of the consecutive developmental phases, taken at the stereomicroscope. Furthermore, some details of the exoskeleton, spermatheca during different phases of pregnancy of the gravid female and the presence of a foreign body (parasite?) within the haemocoel have been displayed in specimens cleared with Hoyer's medium. Résumé

show abstract

“…6). Such formation probably permits telescopic and elastic movements, favouring the fast expulsion of the eggs, as observed in other Tunga species (Jordan, 1962;Barnes & Radovsky, 1969).…”

Section: Process Of Neosomymentioning

confidence: 69%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Anatomy ofTunga trimamillataPampiglioneet al., 2002 (Insecta, Siphonaptera, Tungidae) and developmental phases of the gravid female

et al. 2005

View full text Add to dashboard Cite

show abstract

“…However, the maternal transmission and haploid nature of the mitochondrial genome increases the likelihood of recovering more recent population level history and is more likely to convey a gene tree that is congruent with the species tree (Moore 1995(Moore , 1997. But even if true species phylogeny may not be accurately reflected, the existence of one or more new species of Tunga may be presumed-or the studied specimens belong to one of the already described species such as T. caecata, T. bondari or T. travassosi (Barnes and Radovsky 1969;Lewis 1972).…”

Section: Discussionmentioning

confidence: 99%

Molecular biological investigations of Brazilian Tunga sp. isolates from man, dogs, cats, pigs and rats

et al. 2005

View full text Add to dashboard Cite

Twenty-four isolates of Tunga were collected from afflicted humans, dogs, cats, pigs and rats in Brazil. To investigate genetic diversity, a hypervariable section of mitochondrial 16S rDNA was amplified using PCR and subsequently sequenced. In order to compare results with another species of the genus Tunga, three isolates of the recently described Tunga trimamillata were also checked. Whereas eleven isolates (five from cats, three from dogs and three from humans) were of identical sequence, thirteen isolates collected from dogs, humans, pigs and rats showed differences in sequence up to 49%, so that the existence of one or more new species of Tunga may be presumed.

show abstract

“…Adult females penetrate into the host's skin where, once fertilised, their abdomen increases enormously, owing to the development of up to 200 eggs: this can lead to harmful skin infections. Most Tunga species are parasite of a single or a few closely related hosts, especially rodents, and show a geographically restricted distribution (Li & Chin, 1957;Smit, 1962Smit, , 1968Barnes & Radovsky, 1969). On the and a nuclear one, the internal transcribed spacer 2 (ITS2).…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization ofTunga trimamillataandT. penetrans(Insecta, Siphonaptera, Tungidae): taxonomy and genetic variability

et al. 2005

View full text Add to dashboard Cite

Summary :A new species of the genus Tunga, T. trimamillata has recently been described on the basis of several morphological traits. To explore the taxonomic status of this flea with respect to T. penetrans, we undertook a molecular analysis of cytochrome oxydase II and 16S rDNA mitochondrial genes and of the internal transcribed spacer 2 nuclear marker on samples of both species. Maximum Parsimony evaluations of the three data set indicate a differentiation compatible with a specific rank between the two fleas with very high levels of divergence. Both mitochondrial and nuclear data are in line with a recent bottleneck in the Malagasy population of T. penetrans, possibly due to the recent colonisation of Africa via human transportation. Further, significantly lower mitochondrial variability in the Ecuadorian populations of T. penetrans with respect to the T. trimamillata ones is also evidenced. Résumé

show abstract

A New Tunga (Siphonaptera) from the Nearctic Region with Description of All Stages1

Cited by 27 publications

References 0 publications

Anatomy ofTunga trimamillataPampiglioneet al., 2002 (Insecta, Siphonaptera, Tungidae) and developmental phases of the gravid female

Anatomy ofTunga trimamillataPampiglioneet al., 2002 (Insecta, Siphonaptera, Tungidae) and developmental phases of the gravid female

Molecular biological investigations of Brazilian Tunga sp. isolates from man, dogs, cats, pigs and rats

Molecular characterization ofTunga trimamillataandT. penetrans(Insecta, Siphonaptera, Tungidae): taxonomy and genetic variability

Contact Info

Product

Resources

About