Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection
- Autores
- Olmos, Sofía Eugenia; Lía, Verónica Viviana; Eyherabide, Guillermo
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Knowledge of linkage disequilibrium (LD) patterns is considered a prerequisite for effective association mapping studies. However, no LD analysis in the Argentine public temperate maize collection has been reported to date. In this study, a panel of 111 temperate maize inbreds genotyped at 74 single sequence repeats (SSRs) loci was used to assess LD, genetic diversity and population structure to evaluate the suitability of the panel for association mapping. Mini-core sets were also designed for in-depth phenotyping and allele mining purposes. The panel consisted of: (1) locally developed orange flint germplasm; (2) temperate inbred lines with Iowa Stiff Stalk Synthetic background; and (3) eight historic flint lines, some of them from the Cuarentín race. As a result, four subpopulations were defined. Joint analysis of population structure and combining ability allowed identifying two main heterotic patterns. High molecular diversity, a low extent of LD and a high ratio of linked to unlinked SSR loci pairs in significant LD were detected indicating the suitability of the entire collection for association mapping. The fact that the LD extent in the mini-core sets was similar to that observed in the entire collection and that only a small percentage of allelic richness was reduced suggests that these mini-core sets are suitable to capture diversity, exploit phenotypic variance and discover useful variants representative of the entire collection.
Inst. de Biotecnología
Fil: Olmos, Sofía Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina
Fil: Lia, Veronica Viviana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina
Fil: Eyherabide, Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina - Fuente
- Plant genetic resources 5 (6) : 515-526. (December 2017)
- Materia
-
Genética
Maíz
Variación Genética
Lineas Consanguíneas
Genetics
Maize
Genetic Variation
Inbred Lines
Diversidad Genética - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/955
Ver los metadatos del registro completo
id |
INTADig_ffb263280ec0da4d08d54928601f3fcc |
---|---|
oai_identifier_str |
oai:localhost:20.500.12123/955 |
network_acronym_str |
INTADig |
repository_id_str |
l |
network_name_str |
INTA Digital (INTA) |
spelling |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collectionOlmos, Sofía EugeniaLía, Verónica VivianaEyherabide, GuillermoGenéticaMaízVariación GenéticaLineas ConsanguíneasGeneticsMaizeGenetic VariationInbred LinesDiversidad GenéticaKnowledge of linkage disequilibrium (LD) patterns is considered a prerequisite for effective association mapping studies. However, no LD analysis in the Argentine public temperate maize collection has been reported to date. In this study, a panel of 111 temperate maize inbreds genotyped at 74 single sequence repeats (SSRs) loci was used to assess LD, genetic diversity and population structure to evaluate the suitability of the panel for association mapping. Mini-core sets were also designed for in-depth phenotyping and allele mining purposes. The panel consisted of: (1) locally developed orange flint germplasm; (2) temperate inbred lines with Iowa Stiff Stalk Synthetic background; and (3) eight historic flint lines, some of them from the Cuarentín race. As a result, four subpopulations were defined. Joint analysis of population structure and combining ability allowed identifying two main heterotic patterns. High molecular diversity, a low extent of LD and a high ratio of linked to unlinked SSR loci pairs in significant LD were detected indicating the suitability of the entire collection for association mapping. The fact that the LD extent in the mini-core sets was similar to that observed in the entire collection and that only a small percentage of allelic richness was reduced suggests that these mini-core sets are suitable to capture diversity, exploit phenotypic variance and discover useful variants representative of the entire collection.Inst. de BiotecnologíaFil: Olmos, Sofía Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; ArgentinaFil: Lia, Veronica Viviana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; ArgentinaFil: Eyherabide, Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina2017-08-11T13:34:18Z2017-08-11T13:34:18Z2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/955https://www.cambridge.org/core/journals/plant-genetic-resources/article/genetic-diversity-and-linkage-disequilibrium-in-the-argentine-public-maize-inbred-line-collection/A2B509D9C6A37824E41B40F6D92805D81479-2621 (Print)1479-263X (Online)https://doi.org/10.1017/S1479262116000228Plant genetic resources 5 (6) : 515-526. (December 2017)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología AgropecuariaengArgentina (nation)info:eu-repo/semantics/restrictedAccess2025-09-04T09:46:57Zoai:localhost:20.500.12123/955instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:46:58.262INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection |
title |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection |
spellingShingle |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection Olmos, Sofía Eugenia Genética Maíz Variación Genética Lineas Consanguíneas Genetics Maize Genetic Variation Inbred Lines Diversidad Genética |
title_short |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection |
title_full |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection |
title_fullStr |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection |
title_full_unstemmed |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection |
title_sort |
Genetic diversity and linkage disequilibrium in the Argentine public maize inbred line collection |
dc.creator.none.fl_str_mv |
Olmos, Sofía Eugenia Lía, Verónica Viviana Eyherabide, Guillermo |
author |
Olmos, Sofía Eugenia |
author_facet |
Olmos, Sofía Eugenia Lía, Verónica Viviana Eyherabide, Guillermo |
author_role |
author |
author2 |
Lía, Verónica Viviana Eyherabide, Guillermo |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Genética Maíz Variación Genética Lineas Consanguíneas Genetics Maize Genetic Variation Inbred Lines Diversidad Genética |
topic |
Genética Maíz Variación Genética Lineas Consanguíneas Genetics Maize Genetic Variation Inbred Lines Diversidad Genética |
dc.description.none.fl_txt_mv |
Knowledge of linkage disequilibrium (LD) patterns is considered a prerequisite for effective association mapping studies. However, no LD analysis in the Argentine public temperate maize collection has been reported to date. In this study, a panel of 111 temperate maize inbreds genotyped at 74 single sequence repeats (SSRs) loci was used to assess LD, genetic diversity and population structure to evaluate the suitability of the panel for association mapping. Mini-core sets were also designed for in-depth phenotyping and allele mining purposes. The panel consisted of: (1) locally developed orange flint germplasm; (2) temperate inbred lines with Iowa Stiff Stalk Synthetic background; and (3) eight historic flint lines, some of them from the Cuarentín race. As a result, four subpopulations were defined. Joint analysis of population structure and combining ability allowed identifying two main heterotic patterns. High molecular diversity, a low extent of LD and a high ratio of linked to unlinked SSR loci pairs in significant LD were detected indicating the suitability of the entire collection for association mapping. The fact that the LD extent in the mini-core sets was similar to that observed in the entire collection and that only a small percentage of allelic richness was reduced suggests that these mini-core sets are suitable to capture diversity, exploit phenotypic variance and discover useful variants representative of the entire collection. Inst. de Biotecnología Fil: Olmos, Sofía Eugenia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina Fil: Lia, Veronica Viviana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Biotecnología; Argentina Fil: Eyherabide, Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino; Argentina |
description |
Knowledge of linkage disequilibrium (LD) patterns is considered a prerequisite for effective association mapping studies. However, no LD analysis in the Argentine public temperate maize collection has been reported to date. In this study, a panel of 111 temperate maize inbreds genotyped at 74 single sequence repeats (SSRs) loci was used to assess LD, genetic diversity and population structure to evaluate the suitability of the panel for association mapping. Mini-core sets were also designed for in-depth phenotyping and allele mining purposes. The panel consisted of: (1) locally developed orange flint germplasm; (2) temperate inbred lines with Iowa Stiff Stalk Synthetic background; and (3) eight historic flint lines, some of them from the Cuarentín race. As a result, four subpopulations were defined. Joint analysis of population structure and combining ability allowed identifying two main heterotic patterns. High molecular diversity, a low extent of LD and a high ratio of linked to unlinked SSR loci pairs in significant LD were detected indicating the suitability of the entire collection for association mapping. The fact that the LD extent in the mini-core sets was similar to that observed in the entire collection and that only a small percentage of allelic richness was reduced suggests that these mini-core sets are suitable to capture diversity, exploit phenotypic variance and discover useful variants representative of the entire collection. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-11T13:34:18Z 2017-08-11T13:34:18Z 2017 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/20.500.12123/955 https://www.cambridge.org/core/journals/plant-genetic-resources/article/genetic-diversity-and-linkage-disequilibrium-in-the-argentine-public-maize-inbred-line-collection/A2B509D9C6A37824E41B40F6D92805D8 1479-2621 (Print) 1479-263X (Online) https://doi.org/10.1017/S1479262116000228 |
url |
http://hdl.handle.net/20.500.12123/955 https://www.cambridge.org/core/journals/plant-genetic-resources/article/genetic-diversity-and-linkage-disequilibrium-in-the-argentine-public-maize-inbred-line-collection/A2B509D9C6A37824E41B40F6D92805D8 https://doi.org/10.1017/S1479262116000228 |
identifier_str_mv |
1479-2621 (Print) 1479-263X (Online) |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess |
eu_rights_str_mv |
restrictedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Argentina (nation) |
dc.source.none.fl_str_mv |
Plant genetic resources 5 (6) : 515-526. (December 2017) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
reponame_str |
INTA Digital (INTA) |
collection |
INTA Digital (INTA) |
instname_str |
Instituto Nacional de Tecnología Agropecuaria |
repository.name.fl_str_mv |
INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria |
repository.mail.fl_str_mv |
tripaldi.nicolas@inta.gob.ar |
_version_ |
1842341349196562432 |
score |
12.623145 |