Microsatellite diversity and chromosome number in natural populations of Trifolium riograndense Burkart
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
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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Scientia Agrícola (Online) |
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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 |
_version_ |
1748936462844297216 |