Plant genes determine the qualitative or quantitative traits a plant exhibits. Plant genetics is a field of botany which studies plant genes, variation and heredity. The DNA sequence in plants is studied to understand the role of specific plant genes. Desired traits, such as disease and pest resistance, increased yields and improved nutritional value can be produced in plants by altering the genes and loci encoded by the DNA sequence. Advances in biotechnology have led to a greater understanding of plant genes and genetics, and improved plant breeding and hybridization. Modern plant genetics delves into the sequencing of plant genomes to further the techniques of genetic modification. Agrobacterium method and gene gun method are modern ways of modifying plants. This book is compiled in such a manner, that it will provide in-depth knowledge about plant genes and genetics. The topics covered in this extensive book deal with the core aspects of genetic engineering of plants. For someone with an interest and eye for detail, this book covers the most significant topics in plant genetics.