Biblioteca Digital de VanguardiaYield prediction and inbreeding of maize synthetics generated with lines and single crosses : classic probability
reduce costs and labor associated with predicting the genotypic mean (GM) of a synthetic variety (SV) of maize (Zea mays L.), breeders can develop SVs from L lines and s single crosses (SynL,SC) instead of L+2s lines (SynL). The objective of this work was to derive and study formulae for the inbreed...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
2013
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| Acceso en línea: | http://bdigital.uncu.edu.ar/6060 |
| _version_ | 1782341350682787840 |
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| author | Sahagún-Castellanos, Jaime Rodríguez-Pérez, Juan E. Escalante-González, José L. |
| author_facet | Sahagún-Castellanos, Jaime Rodríguez-Pérez, Juan E. Escalante-González, José L. |
| author_sort | Sahagún-Castellanos, Jaime |
| collection | Repositorio |
| description | reduce costs and labor associated with
predicting the genotypic mean (GM) of a synthetic
variety (SV) of maize (Zea mays L.), breeders
can develop SVs from L lines and s single
crosses (SynL,SC) instead of L+2s lines (SynL).
The objective of this work was to derive and
study formulae for the inbreeding coefficient (IC)
and GM of SynL,SC, SynL, and the SV derived
from (L+2s)/2 single crosses (SynSC). All SVs
were derived from the same L+2s unrelated lines
whose IC is FL, and each parent of a SV was
represented by m plants. An a priori probability
equation for the IC was used. Important
results were: 1) the largest and smallest GMs
correspond to SynL and SynL,SC, respectively;
2) the GM predictors with the largest and
intermediate precision are those for SynL and
SynL,SC, respectively; 3) only when FL=1, or m is
large, SynL and SynSC are the same population,
but only with SynSC prediction costs and labor
undergo the maximum decrease, although its
prediction precision is the lowest. To determine
the SV to be developed, breeders should also
consider the availability of lines, single crosses,
manpower and land area; besides budget, target
farmers, target environments, etc. |
| format | Artículo |
| id | uncu-6060 |
| institution | Biblioteca Digital - UNCUYO |
| language | Inglés |
| publishDate | 2013 |
| publisher | Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
|
| record_format | ojs |
| spelling | uncu-60602014-10-03T12:21:44Z Yield prediction and inbreeding of maize synthetics generated with lines and single crosses : classic probability Predicción de rendimiento y endogamia de sintéticos de maíz generados con líneas y cruzas simples : probabilidad clásica Sahagún-Castellanos, Jaime Rodríguez-Pérez, Juan E. Escalante-González, José L. Agricultura de bajo consumo Fitomejoramiento Apareamiento azar Low input agriculture Plant breeding Random mating Agricultura marginal Estabilidad genotípica Población en apareamiento aleatorio Genes idénticos por descendencia Genotypic stability Identical by descent genes reduce costs and labor associated with predicting the genotypic mean (GM) of a synthetic variety (SV) of maize (Zea mays L.), breeders can develop SVs from L lines and s single crosses (SynL,SC) instead of L+2s lines (SynL). The objective of this work was to derive and study formulae for the inbreeding coefficient (IC) and GM of SynL,SC, SynL, and the SV derived from (L+2s)/2 single crosses (SynSC). All SVs were derived from the same L+2s unrelated lines whose IC is FL, and each parent of a SV was represented by m plants. An a priori probability equation for the IC was used. Important results were: 1) the largest and smallest GMs correspond to SynL and SynL,SC, respectively; 2) the GM predictors with the largest and intermediate precision are those for SynL and SynL,SC, respectively; 3) only when FL=1, or m is large, SynL and SynSC are the same population, but only with SynSC prediction costs and labor undergo the maximum decrease, although its prediction precision is the lowest. To determine the SV to be developed, breeders should also consider the availability of lines, single crosses, manpower and land area; besides budget, target farmers, target environments, etc. Para reducir costos y trabajo para predecir la media genotípica (GM) de una variedad sintética (SV) de maíz (Zea mays L.), se puede desarrollar SVs con L líneas y s cruzas simples (SynL,SC) en lugar de L+2s líneas (SynL). El objetivo de este trabajo fue derivar y estudiar fórmulas para el coeficiente de endogamia (IC) y la GM del SynL,SC, SynL y de la SV derivada con (L+2s)/2 cruzas simples (SynSC). Las SVs fueron generadas con las mismas L+2s líneas no emparentadas, con IC igual a FL. Cada progenitor se representó por m plantas. Se usó el concepto de probabilidad a priori para derivar fórmulas para IC. Resultados importantes fueron: 1) las GMs mayor y menor corresponden a SynL y SynL,SC, respectivamente, 2) la mayor mayor e intermedia precisiones para estimar GM, respectivamente, se obtienen con SynL y SynSC, y 3) solo cuando FL=1 o m es grande, SynL y SynSC son la misma población, pero SynSC, requiere menos trabajo y costos para la predicción aunque esta es menor. Para determinar qué SV desarrollar, se debe considerar también la disponibilidad de líneas, cruzas simples, mano de obra y área experimental; además de presupuesto, y ambientes y usuarios potenciales, etc. Fil: Sahagún-Castellanos, Jaime. Universidad Autónoma Chapingo (México) Fil: Rodríguez-Pérez, Juan E.. Universidad Autónoma Chapingo (México) Fil: Escalante-González, José L.. Universidad Autónoma Chapingo (México) Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias 78 Revista de la Facultad de Ciencias Agrarias Vol. 45, no. 2 Revista de la Facultad de Ciencias Agrarias, Vol. 45, no. 2 2013-12-02 eng Inglés http://bdigital.uncu.edu.ar/6005 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar/ article info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias http://bdigital.uncu.edu.ar/6060 |
| spellingShingle | Agricultura de bajo consumo Fitomejoramiento Apareamiento azar Low input agriculture Plant breeding Random mating Agricultura marginal Estabilidad genotípica Población en apareamiento aleatorio Genes idénticos por descendencia Genotypic stability Identical by descent genes Sahagún-Castellanos, Jaime Rodríguez-Pérez, Juan E. Escalante-González, José L. Yield prediction and inbreeding of maize synthetics generated with lines and single crosses : classic probability |
| title | Yield prediction and inbreeding of maize synthetics generated with lines and single crosses
: classic probability |
| title_full | Yield prediction and inbreeding of maize synthetics generated with lines and single crosses
: classic probability |
| title_fullStr | Yield prediction and inbreeding of maize synthetics generated with lines and single crosses
: classic probability |
| title_full_unstemmed | Yield prediction and inbreeding of maize synthetics generated with lines and single crosses
: classic probability |
| title_short | Yield prediction and inbreeding of maize synthetics generated with lines and single crosses
: classic probability |
| title_sort | yield prediction and inbreeding of maize synthetics generated with lines and single crosses
: classic probability |
| topic | Agricultura de bajo consumo Fitomejoramiento Apareamiento azar Low input agriculture Plant breeding Random mating Agricultura marginal Estabilidad genotípica Población en apareamiento aleatorio Genes idénticos por descendencia Genotypic stability Identical by descent genes |
| url | http://bdigital.uncu.edu.ar/6060 |