Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart

Detalhes bibliográficos
Autor(a) principal: Conterato,Ionara Fatima
Data de Publicação: 2012
Outros Autores: Dall'Agnol,Miguel, Schifino-Wittmann,Maria Teresa, Janke,Aline
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000200005
Resumo: Twenty eight natural populations of Trifolium riograndense Burkart, an important forage legume from native pastures of the state of Rio Grande do Sul, Brazil, were evaluated for genetic diversity with eight Simple Sequences Repeats (SSR) markers. Chromosome numbers were also determined. The eight markers were polymorphic, with 35 alleles and an average of 4.37 alleles per locus, and Polymorphism Information Content (PIC) between 0.48 and 0.80. Group analysis based on Jaccard´s similarity coefficient separated the 28 accessions in nine groups, with an average genetic similarity of 0.44, indicating a high genetic variability among the populations. No evident relation between genetic distance and geographical origin was detected. The chromosome number of 2n=2x=16 was found in all populations, indicating lack of intraspecific variability for chromosome number in the species. This information on diversity can be used in conservation strategies as well as in genetic breeding programs of this species.
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spelling Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkartnative clovergenetic diversitycytogeneticsnative pasturesTwenty eight natural populations of Trifolium riograndense Burkart, an important forage legume from native pastures of the state of Rio Grande do Sul, Brazil, were evaluated for genetic diversity with eight Simple Sequences Repeats (SSR) markers. Chromosome numbers were also determined. The eight markers were polymorphic, with 35 alleles and an average of 4.37 alleles per locus, and Polymorphism Information Content (PIC) between 0.48 and 0.80. Group analysis based on Jaccard´s similarity coefficient separated the 28 accessions in nine groups, with an average genetic similarity of 0.44, indicating a high genetic variability among the populations. No evident relation between genetic distance and geographical origin was detected. The chromosome number of 2n=2x=16 was found in all populations, indicating lack of intraspecific variability for chromosome number in the species. This information on diversity can be used in conservation strategies as well as in genetic breeding programs of this species.Escola Superior de Agricultura "Luiz de Queiroz"2012-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000200005Scientia Agricola v.69 n.2 2012reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162012000200005info:eu-repo/semantics/openAccessConterato,Ionara FatimaDall'Agnol,MiguelSchifino-Wittmann,Maria TeresaJanke,Alineeng2012-02-29T00:00:00Zoai:scielo:S0103-90162012000200005Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2012-02-29T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
title Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
spellingShingle Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
Conterato,Ionara Fatima
native clover
genetic diversity
cytogenetics
native pastures
title_short Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
title_full Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
title_fullStr Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
title_full_unstemmed Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
title_sort Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
author Conterato,Ionara Fatima
author_facet Conterato,Ionara Fatima
Dall'Agnol,Miguel
Schifino-Wittmann,Maria Teresa
Janke,Aline
author_role author
author2 Dall'Agnol,Miguel
Schifino-Wittmann,Maria Teresa
Janke,Aline
author2_role author
author
author
dc.contributor.author.fl_str_mv Conterato,Ionara Fatima
Dall'Agnol,Miguel
Schifino-Wittmann,Maria Teresa
Janke,Aline
dc.subject.por.fl_str_mv native clover
genetic diversity
cytogenetics
native pastures
topic native clover
genetic diversity
cytogenetics
native pastures
description Twenty eight natural populations of Trifolium riograndense Burkart, an important forage legume from native pastures of the state of Rio Grande do Sul, Brazil, were evaluated for genetic diversity with eight Simple Sequences Repeats (SSR) markers. Chromosome numbers were also determined. The eight markers were polymorphic, with 35 alleles and an average of 4.37 alleles per locus, and Polymorphism Information Content (PIC) between 0.48 and 0.80. Group analysis based on Jaccard´s similarity coefficient separated the 28 accessions in nine groups, with an average genetic similarity of 0.44, indicating a high genetic variability among the populations. No evident relation between genetic distance and geographical origin was detected. The chromosome number of 2n=2x=16 was found in all populations, indicating lack of intraspecific variability for chromosome number in the species. This information on diversity can be used in conservation strategies as well as in genetic breeding programs of this species.
publishDate 2012
dc.date.none.fl_str_mv 2012-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000200005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000200005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162012000200005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.69 n.2 2012
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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