Role of Molecular Markers and Importance of SNP for the Development of Cotton Programs

Abstract

Cotton is an important commercial cash crop and cultivated worldwide. It is very important for improvement of desirable traits for development of cotton crop. In this review paper we have discussed the overall Molecular markers and advance techniques with their utilization in cotton improvement programmers. Molecular markers have reliable results and performance increased research of cotton breeding programs. Molecular markers are used to analyze genomic variations, association mapping, fingerprinting and genetic diversity in cotton crop.SNP markers have many advantages for genotyping of large populations as compared to previous marker systems. It is more advance and efficient processing technique. With the help of SNP technique we get more accurate results as compared to other markers in a short time. Overall DNA markers are used in cotton include Restriction Fragment Length Polymorphism (RFLP), Random Amplified Polymorphic DNA (RAPD), Amplified Fragment Length Polymorphism (AFLP), Simple Sequence Repeats (SSR) and Single Nucleotide Polymorphism, with their history current development, implication and importance in cotton breeding.

Keywords

PCR Polymerase chain reaction

QTLs Quantitative trait loci

RAPD Random amplified polymorphic

DNA RFLP Restriction fragment length polymorphism

RIL Recombinant inbred line

SNPs Single nucleotide polymorphisms

SSR Simple sequence repeat