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Genetic mutagenesis can create novel alleles that do not exist in nature germplasms and has been widely used for the improvement of crop plants. Rice blast caused by Magnaporthe oryzae is one of the most destructive disease for rice production. For now, limited mutation-derived varieties associated with blast resistance were reported. In this study, a rice TNG67 mutant pool, developed by using sodium...
Wheat (Triticum aestivum L.) morphological and adaptation-related traits that are controlled by quantitative trait loci (QTLs) help define potential growing areas of a wheat cultivar. To dissect QTLs for heading date, lodging, shattering (SH), cold tolerance, plant height, spike length, spike compactness, awn length (AL) and chaff color (CC), a high-density genetic map with single nucleotide polymorphism...
High-oil maize (Zea mays L.) has special value in animal feed and human food. Two hundred and eight-four and 265 F2:3 families developed from two crosses between one high-oil maize inbred and two normal dent maize inbreds were evaluated for grain oil and starch contents under two environments. Using composite interval mapping, 1–6 QTL for each trait were detected under each environment and in combined...
Despite the well-recognized importance of grain yield in high-oil maize (Zea mays L.) breeding and production, few studies have reported the application of QTL mapping of such traits. An inbred line of high-oil maize designated ‘GY220’ was crossed with two dent maize inbred lines to generate two connected F2:3 populations with 284 and 265 F2:3 families. Our main objective was to evaluate the influence...
Popping expansion volume (PEV) is the most important quality trait in popcorn, while its germplasm is inferior to normal dent/flint corn in yield. In this study, 259 F2:3 families, developed from the cross between a dent corn inbred Dan232 and a popcorn inbred N04, were evaluated for their PEV, grain weight per plant (GWP) and 100-grain weight (100 GW) in two environments. The genetic relationship...
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