Chromosomal characteristics and karyotype evolution of oxyopidae spiders (araneae, entelegynae)

Detalhes bibliográficos
Autor(a) principal: Stávale, L. M. [UNESP]
Data de Publicação: 2011
Outros Autores: Schneider, M. C., Brescovit, A. D., Cella, D. M. [UNESP]
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.
id UNSP_0aa6757470cf1e392a0f93df23037294
oai_identifier_str oai:repositorio.unesp.br:11449/72429
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling 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