Sistema de reprodução em populações naturais de Peltophorum dubium

Detalhes bibliográficos
Autor(a) principal: Mori, Edson Seizo [UNESP]
Data de Publicação: 2013
Outros Autores: Sebbenn, Alexandre Magno, Tambarussi, Evandro Vagner, Guries, Raymond Paul
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/232177
Resumo: A Multi-locus mixed mating model and correlated mating model were used to analyze the mating system of four natural populations of Peltophorum dubium (Sprengel) Taubert from Western São Paulo State, Brazil. Open pollinated seeds were collected from 19 to 33 seed-trees per population and evaluated by allozyme electrophoresis analysis. Significant differences between pollen and ovule gene frequencies were detected in more than 50% of loci in each population, indicating deviations from random mating, probably due to correlated mating, self-fertilizations and mating among relatives. The comparison the fixation index estimated from seed trees (F̂m, ranged from 0.009 to 0.285) with their progenies (F̂p, ranged from 0.127 to 0.364) suggested selection against inbreeding between offspring of adult stages. The estimates of multi-locus outcrossing rate (tm) ranged from 0.557 to 0.924, indicating that the species has a mixed-mating system. Differences between multi-locus and single-locus outcrossing rate (tm-t s)was positive and significantly different from zero for all populations, with values ranging from 0.092 to 0.111, suggesting mating among relatives within the populations, probably due to the presence of intra-population spatial genetic structure. The mean coefficient of co-ancestry (Θ) within progenies ranged from 0.147 to 0.251; confirming that the progenies are compounded by mixtures of different kinds of relatedness. The results are discussed from the view of genetic improvement and conservation of the species.
id UNSP_a7328e3ea3e8ae82cdbbde2fde082aa2
oai_identifier_str oai:repositorio.unesp.br:11449/232177
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Sistema de reprodução em populações naturais de Peltophorum dubiumMating system in natural populations of Peltophorum dubiumCanafístulaCo-ancestryCorrelated matingInbreedingIsozymesOutcrossing rateA Multi-locus mixed mating model and correlated mating model were used to analyze the mating system of four natural populations of Peltophorum dubium (Sprengel) Taubert from Western São Paulo State, Brazil. Open pollinated seeds were collected from 19 to 33 seed-trees per population and evaluated by allozyme electrophoresis analysis. Significant differences between pollen and ovule gene frequencies were detected in more than 50% of loci in each population, indicating deviations from random mating, probably due to correlated mating, self-fertilizations and mating among relatives. The comparison the fixation index estimated from seed trees (F̂m, ranged from 0.009 to 0.285) with their progenies (F̂p, ranged from 0.127 to 0.364) suggested selection against inbreeding between offspring of adult stages. The estimates of multi-locus outcrossing rate (tm) ranged from 0.557 to 0.924, indicating that the species has a mixed-mating system. Differences between multi-locus and single-locus outcrossing rate (tm-t s)was positive and significantly different from zero for all populations, with values ranging from 0.092 to 0.111, suggesting mating among relatives within the populations, probably due to the presence of intra-population spatial genetic structure. The mean coefficient of co-ancestry (Θ) within progenies ranged from 0.147 to 0.251; confirming that the progenies are compounded by mixtures of different kinds of relatedness. The results are discussed from the view of genetic improvement and conservation of the species.UNESP - Universidade Estadual Paulista Júlio de Mesquita Filho, Fazenda Lageado, CEP - 18603-970, Botucatu, SPInstituto Florestal de São Paulo, Caixa Postal 1322, 01059-970, São Paulo, SPUSP - Universidade de São Paulo Escola ESALQ - Superior de Agricultura Luiz de Queiroz, Av. Pádua Dias, 11, Caixa Postal 9, Piracicaba, SP, 13418-900University of Wisconsin-Madison Department of Forest and Wildlife Ecology, Madison, WI 53706-1598UNESP - Universidade Estadual Paulista Júlio de Mesquita Filho, Fazenda Lageado, CEP - 18603-970, Botucatu, SPUniversidade Estadual Paulista (UNESP)Instituto Florestal de São PauloUniversidade de São Paulo (USP)University of Wisconsin-MadisonMori, Edson Seizo [UNESP]Sebbenn, Alexandre MagnoTambarussi, Evandro VagnerGuries, Raymond Paul2022-04-29T09:12:14Z2022-04-29T09:12:14Z2013-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article307-317Scientia Forestalis/Forest Sciences, v. 41, n. 99, p. 307-317, 2013.1413-9324http://hdl.handle.net/11449/2321772-s2.0-84889578344Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporScientia Forestalis/Forest Sciencesinfo:eu-repo/semantics/openAccess2024-04-30T15:58:08Zoai:repositorio.unesp.br:11449/232177Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:41:57.966514Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Sistema de reprodução em populações naturais de Peltophorum dubium
Mating system in natural populations of Peltophorum dubium
title Sistema de reprodução em populações naturais de Peltophorum dubium
spellingShingle Sistema de reprodução em populações naturais de Peltophorum dubium
Mori, Edson Seizo [UNESP]
Canafístula
Co-ancestry
Correlated mating
Inbreeding
Isozymes
Outcrossing rate
title_short Sistema de reprodução em populações naturais de Peltophorum dubium
title_full Sistema de reprodução em populações naturais de Peltophorum dubium
title_fullStr Sistema de reprodução em populações naturais de Peltophorum dubium
title_full_unstemmed Sistema de reprodução em populações naturais de Peltophorum dubium
title_sort Sistema de reprodução em populações naturais de Peltophorum dubium
author Mori, Edson Seizo [UNESP]
author_facet Mori, Edson Seizo [UNESP]
Sebbenn, Alexandre Magno
Tambarussi, Evandro Vagner
Guries, Raymond Paul
author_role author
author2 Sebbenn, Alexandre Magno
Tambarussi, Evandro Vagner
Guries, Raymond Paul
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Instituto Florestal de São Paulo
Universidade de São Paulo (USP)
University of Wisconsin-Madison
dc.contributor.author.fl_str_mv Mori, Edson Seizo [UNESP]
Sebbenn, Alexandre Magno
Tambarussi, Evandro Vagner
Guries, Raymond Paul
dc.subject.por.fl_str_mv Canafístula
Co-ancestry
Correlated mating
Inbreeding
Isozymes
Outcrossing rate
topic Canafístula
Co-ancestry
Correlated mating
Inbreeding
Isozymes
Outcrossing rate
description A Multi-locus mixed mating model and correlated mating model were used to analyze the mating system of four natural populations of Peltophorum dubium (Sprengel) Taubert from Western São Paulo State, Brazil. Open pollinated seeds were collected from 19 to 33 seed-trees per population and evaluated by allozyme electrophoresis analysis. Significant differences between pollen and ovule gene frequencies were detected in more than 50% of loci in each population, indicating deviations from random mating, probably due to correlated mating, self-fertilizations and mating among relatives. The comparison the fixation index estimated from seed trees (F̂m, ranged from 0.009 to 0.285) with their progenies (F̂p, ranged from 0.127 to 0.364) suggested selection against inbreeding between offspring of adult stages. The estimates of multi-locus outcrossing rate (tm) ranged from 0.557 to 0.924, indicating that the species has a mixed-mating system. Differences between multi-locus and single-locus outcrossing rate (tm-t s)was positive and significantly different from zero for all populations, with values ranging from 0.092 to 0.111, suggesting mating among relatives within the populations, probably due to the presence of intra-population spatial genetic structure. The mean coefficient of co-ancestry (Θ) within progenies ranged from 0.147 to 0.251; confirming that the progenies are compounded by mixtures of different kinds of relatedness. The results are discussed from the view of genetic improvement and conservation of the species.
publishDate 2013
dc.date.none.fl_str_mv 2013-09-01
2022-04-29T09:12:14Z
2022-04-29T09:12:14Z
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 Scientia Forestalis/Forest Sciences, v. 41, n. 99, p. 307-317, 2013.
1413-9324
http://hdl.handle.net/11449/232177
2-s2.0-84889578344
identifier_str_mv Scientia Forestalis/Forest Sciences, v. 41, n. 99, p. 307-317, 2013.
1413-9324
2-s2.0-84889578344
url http://hdl.handle.net/11449/232177
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Scientia Forestalis/Forest Sciences
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 307-317
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_ 1808129236340310016