Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers

Detalhes bibliográficos
Autor(a) principal: Kashiani,Pedram
Data de Publicação: 2012
Outros Autores: Saleh,Ghizan, Panandam,Jothi Malar, Abdullah,Nur Ashikin Psyquay, Selamat,Ahmad
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Genetics and Molecular Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000400012
Resumo: A study of genetic variation among 10 pairs of chromosomes extracted from 13 tropical sweet corn inbred lines, using 99 microsatellite markers, revealed a wide range of genetic diversity. Allelic richness and the number of effective alleles per chromosome ranged from 2.78 to 4.33 and 1.96 to 3.47, respectively, with respective mean values of 3.62 and 2.73. According to the Shannon's information index (I) and Nei's gene diversity coefficient (Nei), Chromosome 10 was the most informative chromosome (I = 1.311 and Nei = 0.703), while Chromosome 2 possessed the least (I = 0.762 and Nei = 0.456). Based on linkage disequilibrium (LD) measurements for loci less than 50 cM apart on the same chromosome, all loci on Chromosomes 1, 6 and 7 were in equilibrium. Even so, there was a high proportion of genetic variation in Chromosomes 4, 5, 8, 9 and 10, thereby revealing their appropriateness for use in the genetic diversity investigations among tropical sweet corn lines. Chromosome 4, with the highest number of loci in linkage disequilibrium, was considered the best for marker-phenotype association and QTL mapping, followed by Chromosomes 5, 8, 9 and 10.
id SBG-1_0dc2c9d4533418ec028f4477400a7a37
oai_identifier_str oai:scielo:S1415-47572012000400012
network_acronym_str SBG-1
network_name_str Genetics and Molecular Biology
repository_id_str
spelling Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markersmicrosatelliteinbred linechromosomegenetic variationlinkage disequilibriumA study of genetic variation among 10 pairs of chromosomes extracted from 13 tropical sweet corn inbred lines, using 99 microsatellite markers, revealed a wide range of genetic diversity. Allelic richness and the number of effective alleles per chromosome ranged from 2.78 to 4.33 and 1.96 to 3.47, respectively, with respective mean values of 3.62 and 2.73. According to the Shannon's information index (I) and Nei's gene diversity coefficient (Nei), Chromosome 10 was the most informative chromosome (I = 1.311 and Nei = 0.703), while Chromosome 2 possessed the least (I = 0.762 and Nei = 0.456). Based on linkage disequilibrium (LD) measurements for loci less than 50 cM apart on the same chromosome, all loci on Chromosomes 1, 6 and 7 were in equilibrium. Even so, there was a high proportion of genetic variation in Chromosomes 4, 5, 8, 9 and 10, thereby revealing their appropriateness for use in the genetic diversity investigations among tropical sweet corn lines. Chromosome 4, with the highest number of loci in linkage disequilibrium, was considered the best for marker-phenotype association and QTL mapping, followed by Chromosomes 5, 8, 9 and 10.Sociedade Brasileira de Genética2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000400012Genetics and Molecular Biology v.35 n.3 2012reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572012000400012info:eu-repo/semantics/openAccessKashiani,PedramSaleh,GhizanPanandam,Jothi MalarAbdullah,Nur Ashikin PsyquaySelamat,Ahmadeng2012-08-13T00:00:00Zoai:scielo:S1415-47572012000400012Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2012-08-13T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
title Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
spellingShingle Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
Kashiani,Pedram
microsatellite
inbred line
chromosome
genetic variation
linkage disequilibrium
title_short Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
title_full Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
title_fullStr Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
title_full_unstemmed Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
title_sort Demarcation of informative chromosomes in tropical sweet corn inbred lines using microsatellite DNA markers
author Kashiani,Pedram
author_facet Kashiani,Pedram
Saleh,Ghizan
Panandam,Jothi Malar
Abdullah,Nur Ashikin Psyquay
Selamat,Ahmad
author_role author
author2 Saleh,Ghizan
Panandam,Jothi Malar
Abdullah,Nur Ashikin Psyquay
Selamat,Ahmad
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Kashiani,Pedram
Saleh,Ghizan
Panandam,Jothi Malar
Abdullah,Nur Ashikin Psyquay
Selamat,Ahmad
dc.subject.por.fl_str_mv microsatellite
inbred line
chromosome
genetic variation
linkage disequilibrium
topic microsatellite
inbred line
chromosome
genetic variation
linkage disequilibrium
description A study of genetic variation among 10 pairs of chromosomes extracted from 13 tropical sweet corn inbred lines, using 99 microsatellite markers, revealed a wide range of genetic diversity. Allelic richness and the number of effective alleles per chromosome ranged from 2.78 to 4.33 and 1.96 to 3.47, respectively, with respective mean values of 3.62 and 2.73. According to the Shannon's information index (I) and Nei's gene diversity coefficient (Nei), Chromosome 10 was the most informative chromosome (I = 1.311 and Nei = 0.703), while Chromosome 2 possessed the least (I = 0.762 and Nei = 0.456). Based on linkage disequilibrium (LD) measurements for loci less than 50 cM apart on the same chromosome, all loci on Chromosomes 1, 6 and 7 were in equilibrium. Even so, there was a high proportion of genetic variation in Chromosomes 4, 5, 8, 9 and 10, thereby revealing their appropriateness for use in the genetic diversity investigations among tropical sweet corn lines. Chromosome 4, with the highest number of loci in linkage disequilibrium, was considered the best for marker-phenotype association and QTL mapping, followed by Chromosomes 5, 8, 9 and 10.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
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=S1415-47572012000400012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000400012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1415-47572012000400012
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 Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv Genetics and Molecular Biology v.35 n.3 2012
reponame:Genetics and Molecular Biology
instname:Sociedade Brasileira de Genética (SBG)
instacron:SBG
instname_str Sociedade Brasileira de Genética (SBG)
instacron_str SBG
institution SBG
reponame_str Genetics and Molecular Biology
collection Genetics and Molecular Biology
repository.name.fl_str_mv Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)
repository.mail.fl_str_mv ||editor@gmb.org.br
_version_ 1752122384628842496

Registros relacionados