Abstract
A generation-means analysis was performed on two maize populations, each segregating for genes conferring resistance to anthracnose stalk rot (ASR). The populations were derived from a cross of DE811ASR x DE811 and of DE811ASR x LH132. The resistant parent, DE811ASR, was obtained through introgression with MP305 as the donor and DE811 as the recurrent parent. The analysis revealed significant additive effects in both populations and a significant additive x dominant effect in the DES11ASR x DES11 population. Quantitative trait locus (QTL) map**, using restriction fragment length polymorphism (RFLP)-based molecular markers, indicated a significant QTL on linkage group 4 in both populations. The QTL analysis confirmed additive inheritance in both populations. This work demonstrates a close correspondence between generation-means analysis and discrete observations using molecular markers. Linkage of a genetic marker to genes conferring resistance to ASR will be useful for the introgression of resistance into elite germplasm.
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Communicated by G. S. Khush
This research was part of a thesis submitted by the first author in partial fulfillment of the requirements for a MS degree. Published as Miscellaneous Paper number 1491 of the Delaware Agricultural Experiment Station
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Jung, M., Weldekidan, T., Schaff, D. et al. Generation-means analysis and quantitative trait locus map** of anthracnose stalk rot genes in maize. Theoret. Appl. Genetics 89, 413–418 (1994). https://doi.org/10.1007/BF00225375
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DOI: https://doi.org/10.1007/BF00225375