Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding
- Autores
- Armando, Lorena Vanesa; Almada, Pamela Estefania; Tomas, Maria Andrea
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Success in a breeding program is highly dependent on the information regarding genetic variability and its structure of the available germplasm. Particularly in poorly domesticated species, such information is generally scarce. Panicum coloratum L. is a warm-season perennial grass with potential to increase production in agricultural degraded areas. Its two varieties have high genetic polymorphism and morphological overlapping. The goal of the present study was to assess the genetic diversity and intraspecific structure of a collection of P. coloratum using ISSR molecular markers. Eight accessions of var. makarikariense Gooss. and ten from var. coloratum, plus two commercial materials were analyzed. Differences in variability between varieties were evident: polymorphism and percent of variety specific loci were lower (79%P and 10.3%) in var. makarikariense than in var. coloratum (93%P and 30.9%). Analysis of molecular variation (AMOVA) revealed 13.7% (p = 0.001) of variation was attributable to differences between varieties, and 43.8% remained within the accessions. Individuals of var. coloratum showed higher mean genetic distance among them than the ones of var. makarikariense. The PCO biplot and the dendrogram showed some distinction between varieties, although some accessions of var. coloratum were close to var. makarikariense. Variation in var. coloratum agreed with an allogamous reproductive behavior. Alternatively, less variable closely grouped individuals in var. makarikariense, concur with frequent vegetative reproduction by rhizomes of a reduced number of genotypes. Our study showed that genetic variation had different structure between varieties. This difference should be taken into account when planning germplasm management and conservation and in designing breeding programs.
EEA Rafaela
Fil: Armando, Lorena Vanesa. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Almada, Pamela Estefania. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina
Fil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina
Fil: Tomas, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina - Fuente
- Genetic Resources and Crop Evolution : 1-14. (Published: 02 February 2023)
- Materia
-
Genetic Markers
Intraspecific Relationships
Germplasm
Marcadores Genéticos
Panicum coloratum
Relaciones Intraespecíficas
Germoplasma
Genetic Diversity
Molecular Markers
Perennial Grass
Diversidad Genética
Marcadores Moleculares
Pastura Perenne - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/14588
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Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breedingArmando, Lorena VanesaAlmada, Pamela EstefaniaTomas, Maria AndreaGenetic MarkersIntraspecific RelationshipsGermplasmMarcadores GenéticosPanicum coloratumRelaciones IntraespecíficasGermoplasmaGenetic DiversityMolecular MarkersPerennial GrassDiversidad GenéticaMarcadores MolecularesPastura PerenneSuccess in a breeding program is highly dependent on the information regarding genetic variability and its structure of the available germplasm. Particularly in poorly domesticated species, such information is generally scarce. Panicum coloratum L. is a warm-season perennial grass with potential to increase production in agricultural degraded areas. Its two varieties have high genetic polymorphism and morphological overlapping. The goal of the present study was to assess the genetic diversity and intraspecific structure of a collection of P. coloratum using ISSR molecular markers. Eight accessions of var. makarikariense Gooss. and ten from var. coloratum, plus two commercial materials were analyzed. Differences in variability between varieties were evident: polymorphism and percent of variety specific loci were lower (79%P and 10.3%) in var. makarikariense than in var. coloratum (93%P and 30.9%). Analysis of molecular variation (AMOVA) revealed 13.7% (p = 0.001) of variation was attributable to differences between varieties, and 43.8% remained within the accessions. Individuals of var. coloratum showed higher mean genetic distance among them than the ones of var. makarikariense. The PCO biplot and the dendrogram showed some distinction between varieties, although some accessions of var. coloratum were close to var. makarikariense. Variation in var. coloratum agreed with an allogamous reproductive behavior. Alternatively, less variable closely grouped individuals in var. makarikariense, concur with frequent vegetative reproduction by rhizomes of a reduced number of genotypes. Our study showed that genetic variation had different structure between varieties. This difference should be taken into account when planning germplasm management and conservation and in designing breeding programs.EEA RafaelaFil: Armando, Lorena Vanesa. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaFil: Almada, Pamela Estefania. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; ArgentinaFil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaFil: Tomas, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); ArgentinaSpringer2023-04-26T18:18:01Z2023-04-26T18:18:01Z2023-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/14588https://link.springer.com/article/10.1007/s10722-022-01530-3Armando, L.V., Almada, P.E. & Tomás, M.A. Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding. Genet Resour Crop Evol (2023). https://doi.org/10.1007/s10722-022-01530-31573-5109 (electronic)0925-9864 (print)https://doi.org/10.1007/s10722-022-01530-3Genetic Resources and Crop Evolution : 1-14. (Published: 02 February 2023)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/2019-PE-E6-I142-001/2019-PE-E6-I142-001/AR./Mejoramiento genético de leguminosas y gramíneas forrajeras para incrementar la productividad y la sustentabilidad de los sistemas agropecuarios de la Argentinainfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:45:58Zoai:localhost:20.500.12123/14588instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:45:59.01INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding |
title |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding |
spellingShingle |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding Armando, Lorena Vanesa Genetic Markers Intraspecific Relationships Germplasm Marcadores Genéticos Panicum coloratum Relaciones Intraespecíficas Germoplasma Genetic Diversity Molecular Markers Perennial Grass Diversidad Genética Marcadores Moleculares Pastura Perenne |
title_short |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding |
title_full |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding |
title_fullStr |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding |
title_full_unstemmed |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding |
title_sort |
Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding |
dc.creator.none.fl_str_mv |
Armando, Lorena Vanesa Almada, Pamela Estefania Tomas, Maria Andrea |
author |
Armando, Lorena Vanesa |
author_facet |
Armando, Lorena Vanesa Almada, Pamela Estefania Tomas, Maria Andrea |
author_role |
author |
author2 |
Almada, Pamela Estefania Tomas, Maria Andrea |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Genetic Markers Intraspecific Relationships Germplasm Marcadores Genéticos Panicum coloratum Relaciones Intraespecíficas Germoplasma Genetic Diversity Molecular Markers Perennial Grass Diversidad Genética Marcadores Moleculares Pastura Perenne |
topic |
Genetic Markers Intraspecific Relationships Germplasm Marcadores Genéticos Panicum coloratum Relaciones Intraespecíficas Germoplasma Genetic Diversity Molecular Markers Perennial Grass Diversidad Genética Marcadores Moleculares Pastura Perenne |
dc.description.none.fl_txt_mv |
Success in a breeding program is highly dependent on the information regarding genetic variability and its structure of the available germplasm. Particularly in poorly domesticated species, such information is generally scarce. Panicum coloratum L. is a warm-season perennial grass with potential to increase production in agricultural degraded areas. Its two varieties have high genetic polymorphism and morphological overlapping. The goal of the present study was to assess the genetic diversity and intraspecific structure of a collection of P. coloratum using ISSR molecular markers. Eight accessions of var. makarikariense Gooss. and ten from var. coloratum, plus two commercial materials were analyzed. Differences in variability between varieties were evident: polymorphism and percent of variety specific loci were lower (79%P and 10.3%) in var. makarikariense than in var. coloratum (93%P and 30.9%). Analysis of molecular variation (AMOVA) revealed 13.7% (p = 0.001) of variation was attributable to differences between varieties, and 43.8% remained within the accessions. Individuals of var. coloratum showed higher mean genetic distance among them than the ones of var. makarikariense. The PCO biplot and the dendrogram showed some distinction between varieties, although some accessions of var. coloratum were close to var. makarikariense. Variation in var. coloratum agreed with an allogamous reproductive behavior. Alternatively, less variable closely grouped individuals in var. makarikariense, concur with frequent vegetative reproduction by rhizomes of a reduced number of genotypes. Our study showed that genetic variation had different structure between varieties. This difference should be taken into account when planning germplasm management and conservation and in designing breeding programs. EEA Rafaela Fil: Armando, Lorena Vanesa. Universidad Nacional del Sur. Departamento de Agronomía; Argentina Fil: Almada, Pamela Estefania. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina Fil: Tomas, Maria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina Fil: Tomas, Maria Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigación de la Cadena Láctea (IDICAL); Argentina |
description |
Success in a breeding program is highly dependent on the information regarding genetic variability and its structure of the available germplasm. Particularly in poorly domesticated species, such information is generally scarce. Panicum coloratum L. is a warm-season perennial grass with potential to increase production in agricultural degraded areas. Its two varieties have high genetic polymorphism and morphological overlapping. The goal of the present study was to assess the genetic diversity and intraspecific structure of a collection of P. coloratum using ISSR molecular markers. Eight accessions of var. makarikariense Gooss. and ten from var. coloratum, plus two commercial materials were analyzed. Differences in variability between varieties were evident: polymorphism and percent of variety specific loci were lower (79%P and 10.3%) in var. makarikariense than in var. coloratum (93%P and 30.9%). Analysis of molecular variation (AMOVA) revealed 13.7% (p = 0.001) of variation was attributable to differences between varieties, and 43.8% remained within the accessions. Individuals of var. coloratum showed higher mean genetic distance among them than the ones of var. makarikariense. The PCO biplot and the dendrogram showed some distinction between varieties, although some accessions of var. coloratum were close to var. makarikariense. Variation in var. coloratum agreed with an allogamous reproductive behavior. Alternatively, less variable closely grouped individuals in var. makarikariense, concur with frequent vegetative reproduction by rhizomes of a reduced number of genotypes. Our study showed that genetic variation had different structure between varieties. This difference should be taken into account when planning germplasm management and conservation and in designing breeding programs. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-04-26T18:18:01Z 2023-04-26T18:18:01Z 2023-02 |
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/20.500.12123/14588 https://link.springer.com/article/10.1007/s10722-022-01530-3 Armando, L.V., Almada, P.E. & Tomás, M.A. Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding. Genet Resour Crop Evol (2023). https://doi.org/10.1007/s10722-022-01530-3 1573-5109 (electronic) 0925-9864 (print) https://doi.org/10.1007/s10722-022-01530-3 |
url |
http://hdl.handle.net/20.500.12123/14588 https://link.springer.com/article/10.1007/s10722-022-01530-3 https://doi.org/10.1007/s10722-022-01530-3 |
identifier_str_mv |
Armando, L.V., Almada, P.E. & Tomás, M.A. Intraspecific differentiation in genetic structure in Panicum coloratum L.: importance for germplasm conservation and breeding. Genet Resour Crop Evol (2023). https://doi.org/10.1007/s10722-022-01530-3 1573-5109 (electronic) 0925-9864 (print) |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repograntAgreement/INTA/2019-PE-E6-I142-001/2019-PE-E6-I142-001/AR./Mejoramiento genético de leguminosas y gramíneas forrajeras para incrementar la productividad y la sustentabilidad de los sistemas agropecuarios de la Argentina |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
restrictedAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Genetic Resources and Crop Evolution : 1-14. (Published: 02 February 2023) 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 |
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12.559606 |