Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae)
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4238/vol10-2gmr1084 http://hdl.handle.net/11449/72429 |
Resumo: | We made a cytogenetic analysis of four species of Oxyopidae and compared it with the karyotype data of all species of this family. In Hamataliwa sp, the mitotic cells showed 2n♂ = 26+X 1X 2 and telocentric chromosomes. The 2n♂ = 28, which has been described for only one oxyopid spider, is the highest diploid number reported for this family. Peucetia species exhibited distinct karyotype characteristics, i.e., 2n♂ = 20+X 1X 2 in P. flava and 2n♂ = 20+X in P. rubrolineata, revealing interspecific chromosome variability within this genus. However, both Peucetia species exhibited telocentric chromosomes. The most unexpected karyotype was encountered in Oxyopes salticus, which presented 2n♂ = 10+X in most individuals and a predominance of biarmed chromosomes. Additionally, one male of the sample of O. salticus was heterozygous for a centric fusion that originated the first chromosomal pair and exhibited one supernumerary chromosome in some cells. Testicular nuclei of Hamataliwa sp and O. salticus revealed NORs on autosomal pairs, after silver impregnation. The majority of Oxyopidae spiders have their karyotype differentiated by both reduction in diploid number chromosome number and change of the sex chromosome system to X type; however, certain species retain the ancestral chromosome constitution 2n = 26+X1X2. The most remarkable karyotype differentiation occurred in O. salticus studied here, which showed the lowest diploid number ever observed in Oxyopidae and the second lowest registered for Entelegynae spiders. © FUNPEC-RP www.funpecrp.com.br. |
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Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae)Chromosome fusionCytogeneticDiploid numberNucleolar organizer regionSex chromosome systemanimal cellchromosome analysischromosome pairingchromosome variantdiploidyfemalekaryotype evolutionmalenonhumansex chromosomespecies differentiationspiderAnimalsCell CycleChromosome BandingChromosomes, InsectDiploidyEvolution, MolecularFemaleGenetic VariationKaryotypingMaleNucleolus Organizer RegionSex ChromosomesSpidersAraneaeEntelegynaeHamataliwaOxyopes salticusOxyopidaePeucetiaWe made a cytogenetic analysis of four species of Oxyopidae and compared it with the karyotype data of all species of this family. In Hamataliwa sp, the mitotic cells showed 2n♂ = 26+X 1X 2 and telocentric chromosomes. The 2n♂ = 28, which has been described for only one oxyopid spider, is the highest diploid number reported for this family. Peucetia species exhibited distinct karyotype characteristics, i.e., 2n♂ = 20+X 1X 2 in P. flava and 2n♂ = 20+X in P. rubrolineata, revealing interspecific chromosome variability within this genus. However, both Peucetia species exhibited telocentric chromosomes. The most unexpected karyotype was encountered in Oxyopes salticus, which presented 2n♂ = 10+X in most individuals and a predominance of biarmed chromosomes. Additionally, one male of the sample of O. salticus was heterozygous for a centric fusion that originated the first chromosomal pair and exhibited one supernumerary chromosome in some cells. Testicular nuclei of Hamataliwa sp and O. salticus revealed NORs on autosomal pairs, after silver impregnation. The majority of Oxyopidae spiders have their karyotype differentiated by both reduction in diploid number chromosome number and change of the sex chromosome system to X type; however, certain species retain the ancestral chromosome constitution 2n = 26+X1X2. The most remarkable karyotype differentiation occurred in O. salticus studied here, which showed the lowest diploid number ever observed in Oxyopidae and the second lowest registered for Entelegynae spiders. © FUNPEC-RP www.funpecrp.com.br.Departamento de Biologia Universidade Estadual Paulista, Rio Claro, SPDepartamento de Ciências Biológicas Universidade Federal de São Paulo, Diadema, SPLaboratório de Artrópodes, Instituto Butantan, São Paulo, SPDepartamento de Biologia Universidade Estadual Paulista, Rio Claro, SPUniversidade Estadual Paulista (Unesp)Universidade Federal de São Paulo (UNIFESP)Instituto ButantanStávale, L. M. [UNESP]Schneider, M. C.Brescovit, A. D.Cella, D. M. [UNESP]2014-05-27T11:25:52Z2014-05-27T11:25:52Z2011-05-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article752-763application/pdfhttp://dx.doi.org/10.4238/vol10-2gmr1084Genetics and Molecular Research, v. 10, n. 2, p. 752-763, 2011.1676-5680http://hdl.handle.net/11449/7242910.4238/vol10-2gmr10842-s2.0-799558370052-s2.0-79955837005.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics and Molecular Research0,439info:eu-repo/semantics/openAccess2024-01-08T06:23:19Zoai:repositorio.unesp.br:11449/72429Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:24:38.926416Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) |
title |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) |
spellingShingle |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) Stávale, L. M. [UNESP] Chromosome fusion Cytogenetic Diploid number Nucleolar organizer region Sex chromosome system animal cell chromosome analysis chromosome pairing chromosome variant diploidy female karyotype evolution male nonhuman sex chromosome species differentiation spider Animals Cell Cycle Chromosome Banding Chromosomes, Insect Diploidy Evolution, Molecular Female Genetic Variation Karyotyping Male Nucleolus Organizer Region Sex Chromosomes Spiders Araneae Entelegynae Hamataliwa Oxyopes salticus Oxyopidae Peucetia |
title_short |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) |
title_full |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) |
title_fullStr |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) |
title_full_unstemmed |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) |
title_sort |
Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae) |
author |
Stávale, L. M. [UNESP] |
author_facet |
Stávale, L. M. [UNESP] Schneider, M. C. Brescovit, A. D. Cella, D. M. [UNESP] |
author_role |
author |
author2 |
Schneider, M. C. Brescovit, A. D. Cella, D. M. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de São Paulo (UNIFESP) Instituto Butantan |
dc.contributor.author.fl_str_mv |
Stávale, L. M. [UNESP] Schneider, M. C. Brescovit, A. D. Cella, D. M. [UNESP] |
dc.subject.por.fl_str_mv |
Chromosome fusion Cytogenetic Diploid number Nucleolar organizer region Sex chromosome system animal cell chromosome analysis chromosome pairing chromosome variant diploidy female karyotype evolution male nonhuman sex chromosome species differentiation spider Animals Cell Cycle Chromosome Banding Chromosomes, Insect Diploidy Evolution, Molecular Female Genetic Variation Karyotyping Male Nucleolus Organizer Region Sex Chromosomes Spiders Araneae Entelegynae Hamataliwa Oxyopes salticus Oxyopidae Peucetia |
topic |
Chromosome fusion Cytogenetic Diploid number Nucleolar organizer region Sex chromosome system animal cell chromosome analysis chromosome pairing chromosome variant diploidy female karyotype evolution male nonhuman sex chromosome species differentiation spider Animals Cell Cycle Chromosome Banding Chromosomes, Insect Diploidy Evolution, Molecular Female Genetic Variation Karyotyping Male Nucleolus Organizer Region Sex Chromosomes Spiders Araneae Entelegynae Hamataliwa Oxyopes salticus Oxyopidae Peucetia |
description |
We made a cytogenetic analysis of four species of Oxyopidae and compared it with the karyotype data of all species of this family. In Hamataliwa sp, the mitotic cells showed 2n♂ = 26+X 1X 2 and telocentric chromosomes. The 2n♂ = 28, which has been described for only one oxyopid spider, is the highest diploid number reported for this family. Peucetia species exhibited distinct karyotype characteristics, i.e., 2n♂ = 20+X 1X 2 in P. flava and 2n♂ = 20+X in P. rubrolineata, revealing interspecific chromosome variability within this genus. However, both Peucetia species exhibited telocentric chromosomes. The most unexpected karyotype was encountered in Oxyopes salticus, which presented 2n♂ = 10+X in most individuals and a predominance of biarmed chromosomes. Additionally, one male of the sample of O. salticus was heterozygous for a centric fusion that originated the first chromosomal pair and exhibited one supernumerary chromosome in some cells. Testicular nuclei of Hamataliwa sp and O. salticus revealed NORs on autosomal pairs, after silver impregnation. The majority of Oxyopidae spiders have their karyotype differentiated by both reduction in diploid number chromosome number and change of the sex chromosome system to X type; however, certain species retain the ancestral chromosome constitution 2n = 26+X1X2. The most remarkable karyotype differentiation occurred in O. salticus studied here, which showed the lowest diploid number ever observed in Oxyopidae and the second lowest registered for Entelegynae spiders. © FUNPEC-RP www.funpecrp.com.br. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-05-16 2014-05-27T11:25:52Z 2014-05-27T11:25:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.4238/vol10-2gmr1084 Genetics and Molecular Research, v. 10, n. 2, p. 752-763, 2011. 1676-5680 http://hdl.handle.net/11449/72429 10.4238/vol10-2gmr1084 2-s2.0-79955837005 2-s2.0-79955837005.pdf |
url |
http://dx.doi.org/10.4238/vol10-2gmr1084 http://hdl.handle.net/11449/72429 |
identifier_str_mv |
Genetics and Molecular Research, v. 10, n. 2, p. 752-763, 2011. 1676-5680 10.4238/vol10-2gmr1084 2-s2.0-79955837005 2-s2.0-79955837005.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Genetics and Molecular Research 0,439 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
752-763 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129424768368640 |