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

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dc.contributor.authorSchneider, Marielle Cristina [UNIFESP]
dc.contributor.authorZacaro, Adilson Ariza
dc.contributor.authorFerreira, Amilton
dc.contributor.authorCella, Doralice Maria
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-06-15T18:02:32Z
dc.date.available2018-06-15T18:02:32Z
dc.date.issued2010-07-02
dc.description.abstractWithin 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(male) = 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.en
dc.description.affiliationUniv Fed Sao Paulo, Dept Ciencias Biol, Sao Paulo, Brazil
dc.description.affiliationUniv Fed Vicosa, Dept Biol Geral, Vicosa, MG, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Biol, Inst Biociencias, Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Dept Ciencias Biol, Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)
dc.description.sponsorshipIDFAPESP: 06/53275-3
dc.format.extent13
dc.identifierhttp://dx.doi.org/10.1673/031.010.8701
dc.identifier.citationJournal Of Insect Science. Tucson: Univ Arizona, v. 10, n. 1 p.87, 2010.
dc.identifier.doi10.1673/031.010.8701
dc.identifier.issn1536-2442
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/44436
dc.identifier.wosWOS:000279672400001
dc.language.isoeng
dc.publisherUniv Arizona
dc.relation.ispartofJournal Of Insect Science
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectcentric fusionen
dc.subjectcytogeneticen
dc.subjectmeiosisen
dc.subjectsecondary constrictionen
dc.subjecttranslocationen
dc.titleKaryotype plasticity in crickets: Numerical, morphological, and nucleolar organizer region distribution pattern of Anurogryllus sp.en
dc.typeinfo:eu-repo/semantics/article
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