Year: 2018
Pages: 290-318
Number: Volume 10, issue 3
Type: scientific article
DOI: https://doi.org/10.31301/2221-6197.bmcs.2018-39
Topic: Article
Authors: Kuluev Bulat R., Kuluev Azat R., Nigmatullina N.V.!
The species identification and evaluation of intraspecific genetic polymorphism are the most important tasks of modern plant genetics. To solve these problems, a large number of various methods of searching and studying of taxonomically significant DNA fragments were developed, which are called molecular or DNA markers. This review is devoted to the most popular methods for studying DNA markers of wild plants based on the use of polymerase chain reaction (PCR), DNA microarray and sequencing technologies. Among the PCR based methods ISSR, RAPD, SSR, AFLP, IRAP and REMAP have been most widely used, and these methods are used for both genetic diversity assessment and species identification. More effective for studying intraspecific polymorphism is the SNP-analysis, which is usually carried out by the DNA microarray. The rapid growth of research related to SNP analysis suggests that this group of methods will soon probably completely replace the classical methods of PCR fingerprinting. For the species identification of wild plants, the method of sequencing of variable taxonomically significant DNA fragments is quite effective. To this end, chloroplast markers rpoB, rpoC1, rbcL, matK, psbK-psbI, trnH-psbA, atpF-atpH and nuclear markers ITS1 and ITS2 are most often used. None of these markers is not universal, however when using phylogenetic simultaneous analysis of multiple DNA markers, and wherein the supporting role can perform PCR fingerprinting techniques. Whole genome sequencing and computer analysis of the data, if their cost and complexity will reduce in the future, could replace all current PCR- and DNA-microarray-based methods of assessing the genetic polymorphism.
molecular markers, DNA markers, genetic polymorphism, species identification, fingerprinting, ISSR, RAPD, SSR, AFLP, IRAP, REMAP, chloroplast markers, ITS