Resistance to biotic and abiotic stress in potato: the origin of the genes and corresponding molecular markers
2024
Saiful Islam | Jiana Li | Mohammad Ataur Rahman | Fangru Xie | Botao Song | Bihua Nie
Abstract The integration of molecular markers in the realm of potato genetics has opened new avenues for accelerating genotype analysis and developing improved varieties. Many markers linked to important features have been discovered so far and are consistently distributed across 12 chromosomes (× = 12) of potato. Notably, the genes allied to disease resistance stand out as significant and prevalent. Molecular markers associated with these genes have revolutionized selection processes, making them faster and more effective. Besides, advanced technologies such as kompetitive allele-specific PCR, high-resolution melting assay, SNP-array, genotyping by sequencing, and genome-wide association study, are emphasizing the use of those molecular markers with greater accuracy to detect R genes aligning with the phenotypes. This review discusses advances in potato breeding for resistance against common stresses, focusing on progress made through molecular marker-assisted selection.
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