Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina)
Background and aims: Although the races of maize native to the Northeast of Argentina (Misiones) have been described and a work on phenetic relations has been published, nevertheless little is known about genetic relationships, this being the main objective of this work. M&M: A group of 6 ra...
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| Autores principales: | , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Sociedad Argentina de Botánica
2020
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/22126 |
| Aporte de: |
| id |
I10-R10-article-22126 |
|---|---|
| record_format |
ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-10 |
| container_title_str |
Revistas de la UNC |
| language |
Español |
| format |
Artículo revista |
| topic |
Diallel crosses evolution germplasm of maize breeding maize landraces numerical taxonomy maize breeding germoplasma de maíz (Zea mays ssp. mays) razas de maíz taxonomía numérica mejoramiento de maíz evolución cruzamientos dialélicos |
| spellingShingle |
Diallel crosses evolution germplasm of maize breeding maize landraces numerical taxonomy maize breeding germoplasma de maíz (Zea mays ssp. mays) razas de maíz taxonomía numérica mejoramiento de maíz evolución cruzamientos dialélicos Melchiorre, Pedro Bartoloni, Norberto Cámara Hernández +, Julián Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina) |
| topic_facet |
Diallel crosses evolution germplasm of maize breeding maize landraces numerical taxonomy maize breeding germoplasma de maíz (Zea mays ssp. mays) razas de maíz taxonomía numérica mejoramiento de maíz evolución cruzamientos dialélicos |
| author |
Melchiorre, Pedro Bartoloni, Norberto Cámara Hernández +, Julián |
| author_facet |
Melchiorre, Pedro Bartoloni, Norberto Cámara Hernández +, Julián |
| author_sort |
Melchiorre, Pedro |
| title |
Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina) |
| title_short |
Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina) |
| title_full |
Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina) |
| title_fullStr |
Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina) |
| title_full_unstemmed |
Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina) |
| title_sort |
phenetic and genetic relationships among late landraces of maize (zea mays ssp. mays) from misiones (argentina) |
| description |
Background and aims: Although the races of maize native to the Northeast of Argentina (Misiones) have been described and a work on phenetic relations has been published, nevertheless little is known about genetic relationships, this being the main objective of this work.
M&M: A group of 6 races of maize and the “F1” offspring of crosses derived from a diallel scheme have been evaluated on the basis of 21 morphological vegetative, reproductive and phenological quantitative traits using ANOVA and multivariate statistical methods (discriminant canonic analysis and cluster analysis).
Results: The ANOVA showed highly significant differences among parental races and progeny for almost all the variables. The first two canonical variables (cv) explain almost 67% of overall variation. The most important discriminating characters associated with the first cv correspond to dimensions of ears and grains, while the traits contributing to the second cv are related mainly to vegetative and reproductive morphology. Racial groups defined by cluster analysis were described.
Conclusions: Cluster analysis allowed distinguishing related racial groups. The genetic relationships observed from diallel crosses are different according to the parameter considered for regrouping. The results obtained are important from the taxonomic and evolutionary point of view and facilitate the choice of material to be used in breeding programs. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2020 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/22126 |
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I10-R10-article-221262020-03-25T14:19:31Z Phenetic and genetic relationships among late landraces of maize (Zea mays ssp. mays) from Misiones (Argentina) Relaciones fenotipícas y genéticas entre razas tardías de maíz (Zea mays ssp. mays) nativas de la provincia de Misiones (Argentina) Melchiorre, Pedro Bartoloni, Norberto Cámara Hernández +, Julián Diallel crosses evolution germplasm of maize breeding maize landraces numerical taxonomy maize breeding germoplasma de maíz (Zea mays ssp. mays) razas de maíz taxonomía numérica mejoramiento de maíz evolución cruzamientos dialélicos Background and aims: Although the races of maize native to the Northeast of Argentina (Misiones) have been described and a work on phenetic relations has been published, nevertheless little is known about genetic relationships, this being the main objective of this work. M&M: A group of 6 races of maize and the “F1” offspring of crosses derived from a diallel scheme have been evaluated on the basis of 21 morphological vegetative, reproductive and phenological quantitative traits using ANOVA and multivariate statistical methods (discriminant canonic analysis and cluster analysis). Results: The ANOVA showed highly significant differences among parental races and progeny for almost all the variables. The first two canonical variables (cv) explain almost 67% of overall variation. The most important discriminating characters associated with the first cv correspond to dimensions of ears and grains, while the traits contributing to the second cv are related mainly to vegetative and reproductive morphology. Racial groups defined by cluster analysis were described. Conclusions: Cluster analysis allowed distinguishing related racial groups. The genetic relationships observed from diallel crosses are different according to the parameter considered for regrouping. The results obtained are important from the taxonomic and evolutionary point of view and facilitate the choice of material to be used in breeding programs. Introducción y objetivos: Si bien se han descripto las razas de maíz nativas del Noreste de Argentina (Misiones) y publicado un trabajo sobre las relaciones fenéticas, no obstante poco se conoce sobre las relaciones genéticas, siendo éste el objetivo principal de este trabajo. M&M: Un grupo de seis razas de maíz y la descendencia “F1” derivada de un esquema de cruzamientos dialélicos han sido evaluadas sobre la base de 21 caracteres cuantitativos, morfológicos vegetativos, reproductivos y fenológicos mediante ANVA y métodos estadísticos multivariados (análisis discriminante canónico y análisis de agrupamiento). Resultados: El ANVA mostró diferencias altamente significativas entre las razas parentales y la progenie, para casi todas las variables. Las dos primeras variables canónicas (vc) explican casi 67% de la variación total. Los caracteres discriminantes más importantes asociados a la primera vc corresponden a las dimensiones de la espiga y de los granos, mientras que los caracteres ligados a la segunda vc son morfológicos vegetativos y reproductivos. Se describieron los grupos raciales definidos por el análisis de agrupamiento. Conclusiones: El análisis de agrupamiento permitió distinguir grupos raciales afines. Las relaciones genéticas observadas a partir de cruzamientos dialélicos son diferentes según el parámetro que se considere para el reagrupamiento. Los resultados obtenidos son importantes desde el punto de vista taxonómico y evolutivo y facilitan la elección de material a emplear en los programas de mejoramiento. Sociedad Argentina de Botánica 2020-03-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/22126 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 55 No. 1 (2020): March; 23-43 Boletín de la Sociedad Argentina de Botánica; Vol. 55 Núm. 1 (2020): Marzo; 23-43 Boletín de la Sociedad Argentina de Botánica; v. 55 n. 1 (2020): Março; 23-43 1851-2372 0373-580X 10.31055/1851.2372.v55.n1 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/22126/29228 https://revistas.unc.edu.ar/index.php/BSAB/article/view/22126/29229 Derechos de autor 2020 Boletín de la Sociedad Argentina de Botánica |