New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.geneticsmr.com//year2006/vol5-4/pdf/gmr0225.pdf http://hdl.handle.net/11449/69428 |
Resumo: | Drosophila mulleri (MU) and D. arizonae (AR) are cryptic species of the mulleri complex, mulleri subgroup, repleta group. Earlier cytogenetic studies revealed that these species have different regulatory mechanisms of nucleolar organizing activity. In these species, nucleolar organizing regions are found in both the X chromosome and the microchromosome. In the salivary glands of hybrids between MU females and AR males, there is an interspecific dominance of the regulatory system of the D. arizonae nucleolar organizer involving, in males, amplification and activation of the nucleolar organizer from the microchromosome. The authors who reported these findings obtained hybrids only in that cross-direction. More recently, hybrids in the opposite direction, i.e., between MU males and AR females, have been obtained. The purpose of the present study was to evaluate, in these hybrids, the association of the nucleoli with the chromosomes inherited from parental species in order to cytogenetically confirm the dominance patterns previously described. Our results support the proposed dominance of the AR nucleolar organizer activity over that of MU, regardless of cross-direction. ©FUNPEC-RP. |
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New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleriDrosophilaMicrochromosomeNucleolar dominanceNucleolusPolytene chromosomeanimal cellanimal experimentautosomal dominant inheritancechromosome analysischromosome NORcontrolled studycytogeneticsdominant inheritanceDrosophila arizonaeDrosophila mullerifemalegene activationgene amplificationgenetic associationhybridmalemicrochromosomenonhumannucleoluspolytene chromosomeregulatory mechanismsalivary glandX chromosomeAnimalsCell NucleolusCrosses, GeneticFemaleGenetic VariationHybridization, GeneticInheritance PatternsMaleNucleolus Organizer RegionX Chromosomemulleri subgrouprepleta groupDrosophila mulleri (MU) and D. arizonae (AR) are cryptic species of the mulleri complex, mulleri subgroup, repleta group. Earlier cytogenetic studies revealed that these species have different regulatory mechanisms of nucleolar organizing activity. In these species, nucleolar organizing regions are found in both the X chromosome and the microchromosome. In the salivary glands of hybrids between MU females and AR males, there is an interspecific dominance of the regulatory system of the D. arizonae nucleolar organizer involving, in males, amplification and activation of the nucleolar organizer from the microchromosome. The authors who reported these findings obtained hybrids only in that cross-direction. More recently, hybrids in the opposite direction, i.e., between MU males and AR females, have been obtained. The purpose of the present study was to evaluate, in these hybrids, the association of the nucleoli with the chromosomes inherited from parental species in order to cytogenetically confirm the dominance patterns previously described. Our results support the proposed dominance of the AR nucleolar organizer activity over that of MU, regardless of cross-direction. ©FUNPEC-RP.Departamento de Biologia Laboratório de Citogenética de Insetos Universidade Estadual Paulista, S. José do Rio Preto, SPDepartamento de Biologia Laboratório de Citogenética de Insetos Universidade Estadual Paulista, S. José do Rio Preto, SPUniversidade Estadual Paulista (Unesp)Oliveira, C. I. [UNESP]Bicudo, H. E M C [UNESP]Itoyama, M. M. [UNESP]2014-05-27T11:22:21Z2014-05-27T11:22:21Z2006-12-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article632-637application/pdfhttp://www.geneticsmr.com//year2006/vol5-4/pdf/gmr0225.pdfGenetics and Molecular Research, v. 5, n. 4, p. 632-637, 2006.1676-5680http://hdl.handle.net/11449/69428WOS:0002030120000062-s2.0-338454682112-s2.0-33845468211.pdf57318566502178592083565673316669Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenetics and Molecular Research0,439info:eu-repo/semantics/openAccess2023-11-23T06:15:34Zoai:repositorio.unesp.br:11449/69428Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:32:31.850536Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri |
title |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri |
spellingShingle |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri Oliveira, C. I. [UNESP] Drosophila Microchromosome Nucleolar dominance Nucleolus Polytene chromosome animal cell animal experiment autosomal dominant inheritance chromosome analysis chromosome NOR controlled study cytogenetics dominant inheritance Drosophila arizonae Drosophila mulleri female gene activation gene amplification genetic association hybrid male microchromosome nonhuman nucleolus polytene chromosome regulatory mechanism salivary gland X chromosome Animals Cell Nucleolus Crosses, Genetic Female Genetic Variation Hybridization, Genetic Inheritance Patterns Male Nucleolus Organizer Region X Chromosome mulleri subgroup repleta group |
title_short |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri |
title_full |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri |
title_fullStr |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri |
title_full_unstemmed |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri |
title_sort |
New evidence for nucleolar dominance in hybrids of Drosophila arizonae and Drosophila mulleri |
author |
Oliveira, C. I. [UNESP] |
author_facet |
Oliveira, C. I. [UNESP] Bicudo, H. E M C [UNESP] Itoyama, M. M. [UNESP] |
author_role |
author |
author2 |
Bicudo, H. E M C [UNESP] Itoyama, M. M. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Oliveira, C. I. [UNESP] Bicudo, H. E M C [UNESP] Itoyama, M. M. [UNESP] |
dc.subject.por.fl_str_mv |
Drosophila Microchromosome Nucleolar dominance Nucleolus Polytene chromosome animal cell animal experiment autosomal dominant inheritance chromosome analysis chromosome NOR controlled study cytogenetics dominant inheritance Drosophila arizonae Drosophila mulleri female gene activation gene amplification genetic association hybrid male microchromosome nonhuman nucleolus polytene chromosome regulatory mechanism salivary gland X chromosome Animals Cell Nucleolus Crosses, Genetic Female Genetic Variation Hybridization, Genetic Inheritance Patterns Male Nucleolus Organizer Region X Chromosome mulleri subgroup repleta group |
topic |
Drosophila Microchromosome Nucleolar dominance Nucleolus Polytene chromosome animal cell animal experiment autosomal dominant inheritance chromosome analysis chromosome NOR controlled study cytogenetics dominant inheritance Drosophila arizonae Drosophila mulleri female gene activation gene amplification genetic association hybrid male microchromosome nonhuman nucleolus polytene chromosome regulatory mechanism salivary gland X chromosome Animals Cell Nucleolus Crosses, Genetic Female Genetic Variation Hybridization, Genetic Inheritance Patterns Male Nucleolus Organizer Region X Chromosome mulleri subgroup repleta group |
description |
Drosophila mulleri (MU) and D. arizonae (AR) are cryptic species of the mulleri complex, mulleri subgroup, repleta group. Earlier cytogenetic studies revealed that these species have different regulatory mechanisms of nucleolar organizing activity. In these species, nucleolar organizing regions are found in both the X chromosome and the microchromosome. In the salivary glands of hybrids between MU females and AR males, there is an interspecific dominance of the regulatory system of the D. arizonae nucleolar organizer involving, in males, amplification and activation of the nucleolar organizer from the microchromosome. The authors who reported these findings obtained hybrids only in that cross-direction. More recently, hybrids in the opposite direction, i.e., between MU males and AR females, have been obtained. The purpose of the present study was to evaluate, in these hybrids, the association of the nucleoli with the chromosomes inherited from parental species in order to cytogenetically confirm the dominance patterns previously described. Our results support the proposed dominance of the AR nucleolar organizer activity over that of MU, regardless of cross-direction. ©FUNPEC-RP. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-12-18 2014-05-27T11:22:21Z 2014-05-27T11:22:21Z |
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://www.geneticsmr.com//year2006/vol5-4/pdf/gmr0225.pdf Genetics and Molecular Research, v. 5, n. 4, p. 632-637, 2006. 1676-5680 http://hdl.handle.net/11449/69428 WOS:000203012000006 2-s2.0-33845468211 2-s2.0-33845468211.pdf 5731856650217859 2083565673316669 |
url |
http://www.geneticsmr.com//year2006/vol5-4/pdf/gmr0225.pdf http://hdl.handle.net/11449/69428 |
identifier_str_mv |
Genetics and Molecular Research, v. 5, n. 4, p. 632-637, 2006. 1676-5680 WOS:000203012000006 2-s2.0-33845468211 2-s2.0-33845468211.pdf 5731856650217859 2083565673316669 |
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 |
632-637 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_ |
1808128944365371392 |