Mutation 115 Genetics 71 MUTATION 54 Heredity 21 mutation 19 mutation breeding 17 Chromosomes 16 MUTATION RESEARCH 14 Plant breeding 14 Chromosome 12 Evolution 12 MUTATION RESEARCH: INTERNATIONAL JOURNAL OF MUTAGENESIS CHROMOSOME BREAKAGE AND RELATED SUBJECTS 12 Gene Mutation 10 Mutation breeding 10 Crop improvement 9 Biology 8 Genetic Techniques 8 Molecular genetics 8 Gene mutation 7 Heterosis 7 Meiosis 7 Mutation Breeding 7 genetics 7 Cell Division 6 Genetic Phenomena 6 Genomics 6 RNA 6 gene-mutation 6 Cytogenetics 5 Cytoplasmic inheritance 5