Neometrypus badius a new species of cricket with an unusual sex determining mechanism (Grylloidea, Eneopteridae, Tafaliscinae, Neometrypini)

Mesa, Alejo; García-Novo, Paula

doi:10.1665/1082-6467(2001)010[0081:nbanso]2.0.co;2

Cited by 5 publications

(1 citation statement)

References 4 publications

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“…Este esclerito, presente nos grilos e ausente nos Acrididae, foi referido como virga por Snodgrass (1937) e estilete por . Nas primeiras publicações a apresentar sua terminologia (Mesa & Garcia-Novo, 1997;Mesa et al, 1998), Mesa utilizou o termo dorsal spermatophoric chamber sclerite (dscs), propondo uma atualização para o termo estilete (sensu Chopard) posteriormente (Mesa & Garcia, 1999 Sperber, 1998 (B, F, H), Eidmanacris corumbatai Garcia-Novo, 1998 (C, G) (Phalangopsidae) e Neometrypus badius Mesa & Garcia-Novo, 2001 (I, Jvistas dorsal e ventral, respectivamente) (Eneopteridae), retirado de Mesa et al (1998) e Mesa & Garcia-Novo (2001). Abreviações: ecps = PECS (esclerito ectofálico proximal), ecds = DECS (esclerito ectofálico distal), enps = PENS (esclerito endofálico proximal), ends = ENDS (esclerito endofálico distal), s estilete.…”

Section: A Terminologia De Alejo Mesaunclassified

Análise cladística e morfologia do complexo fálico de Phalangopsidae, com ênfase em Luzarinae (Orthoptera, Ensifera, Grylloidea)

Souza-Dias¹

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Mama told me when I was young Come sit beside me, my only son And listen closely to what I say. And if you do this It will help you some sunny day. Take your time... Don't live too fast, Troubles will come and they will pass. Go find a woman and you'll find love, And don't forget son, There is someone up above. And be a simple kind of man. Be something you love and understand. Forget your lust for the rich man's gold All that you need is in your soul, And you can do this if you try. All that I want for you my son, Is to be satisfied. Boy, don't you worry... you'll find yourself. Follow you heart and nothing else. And you can do this if you try. All that I want for you my son, Is to be satisfied.

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Section: A Terminologia De Alejo Mesaunclassified

Análise cladística e morfologia do complexo fálico de Phalangopsidae, com ênfase em Luzarinae (Orthoptera, Ensifera, Grylloidea)

Souza-Dias¹

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Repetitive DNA chromosomal organization in the cricket Cycloptiloides americanus: a case of the unusual X1X20 sex chromosome system in Orthoptera

Palacios-Gimenez

Cabral-de-Mello

2014

Mol Genet Genomics

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A common placement for most sex chromosomes that is involved in their evolutionary histories is the accumulation of distinct classes of repetitive DNAs. Here, with the aim of understanding the poorly studied repetitive DNA organization in crickets and its possible role in sex chromosome differentiation, we characterized the chromosomes of the cricket species Cycloptiloides americanus, a species with the remarkable presence of the unusual sex chromosome system X1X20♂/X1X1X2X2♀. For these proposes, we used C-banding and mapping through the fluorescence in situ hybridization of some repetitive DNAs. The C-banding and distribution of highly and moderately repetitive DNAs (C 0t-1 DNA) varied depending of the chromosome. The greater accumulation of repetitive DNAs in the X2 chromosome was evidenced. The microsatellites were spread along entire chromosomes, but (AG)10 and (TAA)10 were less enriched, mainly in the centromeric areas. Among the multigene families, the 18S rDNA was spread throughout almost all of the chromosomes, except for pair 5 and X2, while the U2 snDNA was placed exclusively in the largest chromosome. Finally, the 5S rDNA was exclusively located in the short arms of the sex chromosomes. The obtained data reinforce the importance of chromosomal dissociation and inversion as a primary evolutionary mechanism to generate neo-sex chromosomes in the species studied, followed by the repetitive DNAs accumulation. Moreover the exclusive placement of 5S rDNA in the sex chromosomes suggests the involvement of this sequence in sex chromosome recognition throughout meiosis and, consequently, their maintenance, in addition to their avoiding degeneration.

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A new species of Tafalisca Walker, 1869 from the Iguaçu National Park, Brazil (Grylloidea, Eneopteridae, Tafaliscinae)

Souza-Dias¹,

Mello

2010

Zootaxa

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The aim of this work was to describe a new cricket species from the Iguaçu National Park, Southeastern Brazil. We characterize the genitalia and external morphology of Tafalisca paranaensis n. sp. and the genitalia of Tafalisca paulista Rehn, 1918 providing a comparison between these species. ResumoO objetivo deste trabalho foi descrever uma nova espécie de grilo do Parque Nacional do Iguaçu, Sul do Brasil. Nós caracterizamos a genitália e a morfologia externa de Tafalisca paranaensis, sp. n. e a genitália de Tafalisca paulista Rehn, 1918 fornecendo uma comparação entre estas espécies.

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Neometrypus badius a new species of cricket with an unusual sex determining mechanism (Grylloidea, Eneopteridae, Tafaliscinae, Neometrypini)

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 5 publications

References 4 publications

Análise cladística e morfologia do complexo fálico de Phalangopsidae, com ênfase em Luzarinae (Orthoptera, Ensifera, Grylloidea)

Análise cladística e morfologia do complexo fálico de Phalangopsidae, com ênfase em Luzarinae (Orthoptera, Ensifera, Grylloidea)

Repetitive DNA chromosomal organization in the cricket Cycloptiloides americanus: a case of the unusual X1X20 sex chromosome system in Orthoptera

A new species of Tafalisca Walker, 1869 from the Iguaçu National Park, Brazil (Grylloidea, Eneopteridae, Tafaliscinae)

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