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| Castanhole,Márcia Maria Urbanin; Pereira,Luis Lênin Vicente; Souza,Hederson Vinicius de; Valério,José Raul; Barbosa,Leonardo Rodrigues; Itoyama,Mary Massumi. |
| Spittlebugs annually infest pastures and cause severe damage, representing a serious problem for the tropical American beef cattle industry. Spittlebugs are an important biotic constraint to forage production and there is a lack of cytogenetic data for this group of insects. For these reasons, we conducted this work, in which the spermatogenesis and nucleolar behavior of Deois flavopicta, Mahanarva fimbriolata and Notozulia entreriana were studied. The males possessed testes in the shape of a "bunch of grapes"; a variable number of testicular lobes per individual and polyploid nuclei composed of several heteropycnotic bodies. A heteropycnotic area was located in the periphery of the nucleus (prophase I); the chiasmata were terminal or interstitial;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chromosomal characterization; Karyotype; Cytogenetics; Spermatogenesis; Holocentric chromosomes. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200008 |
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| Gomes,Mariana Oliveira; Castanhole,Márcia Maria Urbanin; Souza,Hederson Vinicius de; Murakami,Aline Sumitani; Firmino,Tatiani Seni de Souza; Saran,Priscila Samara; Banho,Cecilia Artico; Monteiro,Leticia da Silva; Silva,Jocielly Cristina Pereira da; Itoyama,Mary Massumi. |
| The Heteroptera are known for their odour, for being pests or for being disease carriers. However, they are still not extensively studied, perhaps because they form a very large group. Therefore, with the aim of enhancing the knowledge of the morphology of the testes of this insect order, we collected and analysed 18 species of terrestrial Heteroptera from the northwestern part of São Paulo. The analysis of these species revealed some differences between the testicles of these species, including their shape (elongated, oval, round or pecten), the morphology of the testicular lobes (elongated and paired side by side or united in a single region), the colours of the peritoneal sheath that surrounds the lobes (red, orange, yellow or translucent), and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Testicles; Peritoneal sheath; Lobes. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300131 |
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