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Maize root system architecture determines key functions of uptake of water and nutrients in plants. A large number of quantitative trait loci (QTLs) of root-related traits have been found in different populations of maize. Identification of consistent QTLs across diverse genetic backgrounds could be instrumental on marker-assisted selection of traits and identification of candidate functional genes...
Plant height (PH) and ear height (EH) are important agronomic traits in maize (Zea mays L.) breeding. To investigate the influence of the genetic background on the detection of quantitative trait locus (QTL) conferring PH and EH, related mapping populations were developed from a near isogenic line (NIL) and its recurrent parent. Through joint-environment analyses, a total of four QTLs for PH were...
Kernel weight (KWEI), a complex quantitative trait that is largely determined by kernel size, is a key component of grain yield in maize. In our previous studies, qKW7, a putative pleiotropic QTL associated with both KWEI and kernel width (KWID), was detected within the 7.02 bin region on chromosome 7 by both F2:3 population and recombinant inbred line (RIL) population from a Ye478 and Huangzaosi...
Grain yield is one of the most important and complex quantitative traits in maize breeding. In the present study, a total of 11 connected RIL populations, derived from crosses between elite inbreed “Huangzaosi” as the common parent and 11 elite inbreeds, were evaluated for five yield components and kernel-related traits under six environments. Quantitative trait loci (QTL) were detected for the traits...
Interspecific hybridization between foxtail millet cultivars (Setaria italica) and a green foxtail (S. viridis) resistant to the herbicide sethoxydim were undertaken to breed foxtail millet for improved herbicide resistance. Parents, reciprocal F1 hybrids, F2 selfed derived populations and BC1 backcross progeny were produced and analysed for mortality and fresh weight over a range of dosages. All...
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