Molecular Marker Techniques and Recent Advancements

作者：Dharminder Bhatia, Gagandeep Singh · 年份：2022 · DOI：10.1002/9781119745686.ch1 · 被引用次数：7 · 研究领域：Genetic Mapping and Diversity in Plants and Animals、Plant Disease Resistance and Genetics、Genetics and Plant Breeding

Under traditional breeding methods, plant selection was carried out based upon their visible phenotypes. However, the phenotype is largely influenced by the environmental factors affecting the crop improvement program. The molecular markers provided a great advantage to breeders for the efficient selection of better plant progenies. The molecular markers are highly reproducible and are not affected by the environment. The technological advances in DNA analysis have expanded the host of molecular markers used for plant genotyping. Recently, the advent of the next-generation sequencing (NGS) technologies has contributed to highly abundant and informative markers like single-nucleotide polymorphisms (SNPs). The development of saturated linkage maps could only be possible with the availability of molecular markers. These maps are prerequisite for gene/QTL mapping, map-based cloning of genes, and marker-assisted selection. This chapter briefly discusses the different types of plant molecular markers while particularly focusing on recent developments in molecular marker technologies.