Читать книгу Principles of Plant Genetics and Breeding - George Acquaah - Страница 85

Gene mapping entails a graphic representation of the arrangement of a gene or a DNA sequence on a chromosome. It can be used to locate and identify the gene (or group of genes) that conditions a trait of interest. It depends on availability of markers. The availability of molecular markers has greatly facilitated gene mapping. Further, genomic DNA sequencing produces the most complete maps for species. Now, QTL (quantitative trait loci) mapping is becoming more widespread. Modern plant breeding is greatly facilitated by genetic maps.