Karyotype plasticity in crickets: Numerical, morphological, and nucleolar organizer region distribution pattern of Anurogryllus sp.

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Autor(es): dc.contributorUniversidade Federal de São Paulo (UNIFESP)-
Autor(es): dc.contributorUniversidade Federal de Viçosa (UFV)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCristina Schneider, Marielle-
Autor(es): dc.creatorAriza Zacaro, Adilson-
Autor(es): dc.creatorFerreira, Amilton-
Autor(es): dc.creatorMaria Cella, Doralice-
Data de aceite: dc.date.accessioned2025-08-21T19:38:57Z-
Data de disponibilização: dc.date.available2025-08-21T19:38:57Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2010-08-20-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1673/031.010.8701-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/226008-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/226008-
Descrição: dc.descriptionWithin the Orthopteran species, those of the suborder Ensifera have been rarely studied from the cytogenetic point of view, mainly due to the difficulties for taxonomic identification of its species. The Gryllidae is the second largest family of this suborder and possesses some genera, such as Anurogryllus, that occur only on the American continents. The aim of this work was to determine the karyotype characteristics, the meiotic chromosome behaviour, and the nucleolar organizer region (NOR) pattern of Anurogryllus sp (Orthoptera: Gryllidae). In the analyzed sample, high levels of numerical, morphological, and NORs polymorphisms were detected. Within five distinct karyotypes that were found, the basic karyotype of Anurogryllus sp. showed 2n(♂) = 22 + X0 with acrocentric autosomes and a metacentric X sex chromosome; furthermore, a conspicuous secondary constriction related to the NOR was present along the entire short arm on pair 5. The other four types of karyotypes arose from centric fusions between elements of pairs 1/3, 2/6, 4/7 and a NOR partial translocation from pair 5 onto the long arm terminal region of one element of the fused pair 2/6. Such intraspecific variability and the consequences of high levels of polymorphism are discussed, leading to conjectures about the mechanisms that led to these chromosome rearrangements. © This is an open access paper. We use the Creative Commons Attribution 3.0 license that permits unrestricted use, provided that the paper is properly attributed.-
Descrição: dc.descriptionUniversidade Federal de São Paulo UNIFESP Departamento de Cincias Biolgicas, Diadema, São Paulo-
Descrição: dc.descriptionUniversidade Federal de Viosa UFV Departamento de Biologia Geral, Viosa, Minas Gerais-
Descrição: dc.descriptionUniversidade Estadual Paulista UNESP Departamento de Biologia, Rio Claro, São Paulo-
Descrição: dc.descriptionUniversidade Estadual Paulista UNESP Departamento de Biologia, Rio Claro, São Paulo-
Idioma: dc.languageen-
Relação: dc.relationJournal of Insect Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcentric fusion-
Palavras-chave: dc.subjectcytogenetic-
Palavras-chave: dc.subjectmeiosis-
Palavras-chave: dc.subjectsecondary constriction-
Palavras-chave: dc.subjecttranslocation-
Título: dc.titleKaryotype plasticity in crickets: Numerical, morphological, and nucleolar organizer region distribution pattern of Anurogryllus sp.-
Tipo de arquivo: dc.typelivro digital-
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