Preliminary Studies on Early Genomic Changes of a Synthetic Allotetraploidin Cucumis Isoenzyme Analyses of Progenies of the Crosses of Cucumis Species with Different Ploidities Polyploid Induction on the Hybrid of Miscanthus lutarioriparia×Miscanthus sinensis Obtaining and Identification of the Allotetraploid from 4x Flowering Chinese Cabbage × 4x Kailan Obtaining and Identification of the Allotetraploid from 4x Flowering Chinese Cabbage × 4x Kailan Phylogenetic Origin of BBCC Genome Allotetraploids in Oryza Revealed by Chloroplast Gene Sequences Karyotype Analysis and Pollen Mother Cell Meiosis Observation in Taraxacum antungense Kitag.(Asteraceae) Genetic Analysis of Triploid Progenies from Shatian Pummelo(2x)× Citrus Allotetraploid Somatic Hybrid NS(4x) Genetic Analysis of Triploid Progenies from Shatian Pummelo(2x)× Citrus Allotetraploid Somatic Hybrid NS(4x) Analysis of Genetic Diversity of Allotetraploid Cotton Based on SSR Identification of Quantitative Trait Loci (QTLs) Affecting Yield and Fiber Properties in Chromosome 16 in Cotton Using Substitution Line Preliminary Studies on Early Genomic Changes of a Synthetic Allotetraploidin Cucumis