Breeding potential of maize landraces evaluated by their testcross performance

Genetic Distance Based on SSR Markers and Testcross Performance of Maize Inbred Lines

The identification of parental inbred lines to develop superior hybrids is a rather costly and time-consuming step in maize breeding. In some cases, pedigree information has been used to select diverse parental lines. In the case of Iranian maize inbred lines, this information is not fully available. In this study we investigated the genetic distance (GD) based on Simple sequence Repeats (SSR) ...

Unlocking the Genetic Diversity of Maize Landraces with Doubled Haploids Opens New Avenues for Breeding

Landraces are valuable genetic resources for broadening the genetic base of elite germplasm in maize. Extensive exploitation of landraces has been hampered by their genetic heterogeneity and heavy genetic load. These limitations may be overcome by the in-vivo doubled haploid (DH) technique. A set of 132 DH lines derived from three European landraces and 106 elite flint (EF) lines were genotyped...

PLANT GENETIC RESOURCES Testcross Performance of Semiexotic Inbred Lines Derived from Latin American Maize Accessions

from Oh43 (Darrah and Zuber, 1986). Smith (1988) reported that a small number of lines, including B73, Tropical maize (Zea mays L.) represents the most diverse readily A632, Mo17, and Oh43, were the major contributors to available source of germplasm to broaden the limited genetic base of commercial U.S. maize hybrids. Subsequently, Smith et temperate maize in the USA. One objective of this stu...

Selection Among and Within S1 Lines of Maize on S2 Line and Testcross Performance

Genetic potential of common bean progenies obtained by different breeding methods evaluated in various environments.

Grain yield is strongly influenced by the environment, has polygenic and complex inheritance, and is a key trait in the selection and recommendation of cultivars. Breeding programs should efficiently explore the genetic variability resulting from crosses by selecting the most appropriate method for breeding in segregating populations. The goal of this study was to evaluate and compare the genet...