Spermatogenesis in<i>Triatoma williami</i>Galvão, Souza and Lima (1965) (Hemiptera, Triatominae)

Succi, Maysa; Alevi, Kaio Cesar Chaboli; Mendonca, Priscila Pasqueetto; Bardella, Vanessa Bellini; Rosa, João Aristeu da; Azeredo-Oliveira, Maria Tercília Vilela de

doi:10.1080/07924259.2013.855268

Cited by 6 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This number of chromosomes is observed in all insects in the matogrossensis subcomplex (Panzera et al, 2010;Succi et al, 2013;Alevi et al, 2014c).…”

Section: Discussionmentioning

confidence: 91%

“…Recently, the spermatogenesis of T. williami has been described (Succi et al, 2013). T. vandae presents some characteristics during meiosis that differentiate it from T. williami, including the presence of a chromocenter with two sex chromosomes individualized during early prophase, and the presence of a bi-or tripartite corpuscle in polyploid nuclei.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Spermatogenesis and nucleolar behavior in Triatoma vandae and Triatoma williami (Hemiptera, Triatominae)

Pereira¹,

Alevi²,

Mendonca³

et al. 2015

Genet. Mol. Res.

View full text Add to dashboard Cite

ABSTRACT. This study describes spermatogenesis in Triatoma vandae and the nucleolar behavior of T. vandae and Triatoma williami, with a cytotaxonomic focus. Analysis of mitotic and meiotic metaphases of T. vandae confirms the species karyotype. T. vandae presents some characteristics during meiosis that differentiate it from T. williami, including the presence of a chromocenter with two sex chromosomes individualized during early prophase, and the presence of a bi-or tripartite corpuscle in polyploid nuclei. It was possible to observe the compaction of chromatin during prophase resulting in holocentric chromosomes. During metaphase, the autosomes presented a ring shape and the sex chromosomes were in the center of the ring. These chromosomes were separated in anaphase. Although it is common, we did not observe the phenomenon of late migration of the sex chromosomes. By means of silver ion impregnation it was possible to describe nucleologenesis in T. vandae and T. williami.

show abstract

“…This number of chromosomes is observed in all insects in the matogrossensis subcomplex (Panzera et al, 2010;Succi et al, 2013;Alevi et al, 2014c).…”

Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Spermatogenesis and nucleolar behavior in Triatoma vandae and Triatoma williami (Hemiptera, Triatominae)

Pereira¹,

Alevi²,

Mendonca³

et al. 2015

Genet. Mol. Res.

View full text Add to dashboard Cite

show abstract

“…This phenomenon is relatively common in the suborder Heteroptera (Mendonça, 2010;Succi et al, 2014;Vicente Pereira, 2015;Pereira et al, 2015), and according to Morielle and AzeredoOliveira (2004), it is associated with the equational division of the sex chromosomes. However, P. laticornis presented pre-reductional meiotic behavior of the sex chromosome in the first division, thus excluding the possibility of this phenomenon being associated with the equational division of the sex chromosomes.…”

Section: Discussionmentioning

confidence: 99%

Description of the pre-reductional sex chromosome during male meiosis of Pachylis laticornis (Heteroptera: Coreidae)

et al. 2016

View full text Add to dashboard Cite

“…It consists of three different phases: spermatocitogenesis, which is a phase of multiplication; meiosis, which is the division phase; and spermiogenesis, which is the differentiation phase. 15 Perez and others, 16 reported that in some cases fifth instar nymph have mature gonads. Mello and collaborators, 17 analyzed fifth instar nymph of Triatoma infestans and observed the presence of spermatogonia, spermatocytes (metaphase), spermatids, and sperms.…”

Section: -8mentioning

confidence: 99%

Reproductive Biology of Triatoma brasiliensis (Hemiptera, Triatominae) During the Imaginal Molt

Alevi

Guerra

Imperador

et al. 2016

The American Society of Tropical Medicine and Hygiene

Self Cite

View full text Add to dashboard Cite

Abstract. The triatomines are vectors of the protozoan Trypanosoma cruzi, etiologic agent of Chagas disease. These insects are sexually active after the imaginal molt. Some aspects have been studied in Triatoma brasiliensis during the imaginal molt, such as autogeny in virgin females and the relationship between blood ingestion by fifth instar nymph and the realization of the imaginal molt. Thus, to aid in the understanding of reproductive biology and developmental physiology of these vectors, this article analyzes the spermatogenesis of T. brasiliensis during the imaginal molt. The analysis of the seminiferous tubules from males in the fifth instar during imaginal molt has demonstrated that T. brasiliensis has only a few spermatids and a plentiful quantity of sperm. Thus, we suggest that during imaginal molt the cell division is disrupted aiming to reduce energy costs and the differentiation into sperm is stimulated to ensure the paternity of the adult male.

show abstract

Spermatogenesis inTriatoma williamiGalvão, Souza and Lima (1965) (Hemiptera, Triatominae)

Cited by 6 publications

References 14 publications

Spermatogenesis and nucleolar behavior in Triatoma vandae and Triatoma williami (Hemiptera, Triatominae)

Spermatogenesis and nucleolar behavior in Triatoma vandae and Triatoma williami (Hemiptera, Triatominae)

Description of the pre-reductional sex chromosome during male meiosis of Pachylis laticornis (Heteroptera: Coreidae)

Reproductive Biology of Triatoma brasiliensis (Hemiptera, Triatominae) During the Imaginal Molt

Contact Info

Product

Resources

About