Mostrar el registro sencillo del ítem
Combining ability analysis of RILs developed from a YML32 × Q11 cross for grain yield and resistance to gray leaf spot
Autor: | Li, Z.W. |
Autor: | Liu Li |
Autor: | Zhang, Y.D. |
Autor: | Jeffers, D.P. |
Autor: | Kang, M.S. |
Autor: | Fan, X.M. |
Año: | 2018 |
ISSN: | 0011-183X (Print) 1435-0653 (Online) |
URI: | https://hdl.handle.net/10883/19494 |
Resumen: | The development of resistant lines and hybrids is an economical way to control disease and improve yield stability. The objectives of this study were (i) to investigate if differences in resistance to gray leaf spot (GLS, caused by Cercospora zeina) exist among recombinant inbred lines (RILs) with and without the quantitative trait locus encompassing the resistance-carrying GZ204/IDP5 DNA segment (RDNAS) and to determine its effect on grain yield, and (ii) to determine general combining ability and specific combining ability effects for grain yield and GLS scores (GLSS). Four RILs (three with RDNAS [RL1_1, RL1_2, and RL2_1] and one without RDNAS [RL2_2]) were developed via marker-assisted selection from a cross between YML32 and Q11?an elite line susceptible to GLS. The four RILs and the susceptible parent (Q11) were crossed as testers with 13 maize (Zea mays L.) lines of known heterotic groups (Suwan1, Reid, and non-Reid). The three RDNAS-carrying RILs showed reduced GLSS and improved grain yield stability, but grain yield itself was not significantly increased. These three RILs also showed negative general combining ability effects for GLSS. RL2_1 was the best line for improving GLS resistance. The RILs possessing the RDNAS in crosses with lines from the Suwan1 heterotic group had lower GLSS than those from Reid and non-Reid heterotic groups, suggesting that resistance genes or quantitative trait loci, in addition to RDNAS, might be present in Suwan1. |
Formato: | |
Lenguaje: | English |
Editor: | Crop Science Society of America (CSSA) |
Copyright: | CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. |
Tipo: | Article |
Lugar de publicación: | Madison, Wis. |
Páginas: | 1070-1081 |
Número: | 3 |
Volumen: | 58 |
DOI: | 10.2135/cropsci2017.04.0228 |
Palabras Claves: | Grain Yield |
Palabras Claves: | DNA Segments |
Agrovoc: | COMBINING ABILITY |
Agrovoc: | RECOMBINANT DNA |
Agrovoc: | MAIZE |
Agrovoc: | DISEASE CONTROL |
Agrovoc: | INBRED LINES |
Agrovoc: | GENOMES |
Datasets relacionados: | https://dl.sciencesocieties.org/publications/cs/supplements/58/1070-supplement1.pdf |
Revista: | Crop Science |
Ficheros en el ítem
Este ítem aparece en la(s) siguiente(s) colección(ones)
-
Genetic Resources
Genetic Resources including germplasm collections, wild relatives, genotyping, genomics, and IP