Separation of epistatic, additive and dominant effects on corn.
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| Autores: | , , , , |
|---|---|
| 格式: | artículo original |
| 状态: | Versión publicada |
| Fecha de Publicación: | 2006 |
| 实物特征: | The inheritance of host to stunt maize was studiedunder natural field conditions. Inbred lines P1 (moderatelyresistant) and P2 (susceptible) and their F1, F2, [BC(P1) andBC(P2)] progenies were evaluated at two seasons at sea level,in Veracruz in 1999. Significant epistatic effects were notedto the resistance to stunt corn; however, the dominantgenetics effects were greater and more important thanadditive and epistatic effects. The data showed that resistanceto stunt corn was controlled by only a few major genes. TheF1 hybrid showed high tolerance, indicating dominance andmid-parent heterosis for resistance was also observed. Thedata indicate that a back-crossing procedure can be used totransfer the resistance factors into elite lines. Some form ofrecurrent selection in populations having a degree ofresistance also is suggested. |
| País: | Portal de Revistas UCR |
| 机构: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 语言: | Español |
| OAI Identifier: | oai:archivo.portal.ucr.ac.cr:article/12231 |
| 在线阅读: | https://archivo.revistas.ucr.ac.cr/index.php/agromeso/article/view/12231 |