Year 2022, Volume 7, Issue 3

Year : 2022
Volume : 7
Issue : 3
   
Authors : Iryna KONDRATSKAYA, Andrei YUKHIMUK, Olga CHIZHIK, Vladimir RESHETNIKOV
Title : DNA MARKERS AS A MEANS OF ASSESSING THE GENETIC DIVERSITY AND IDENTIFICATION OF GRASSES
Abstract : The effectiveness of breeding is largely depends on the presence of the gene variability in the initial breeding material. The genetic variability assessment helps to evaluate the source material during a fundamentally new forms with economically valuable traits creating. In this regard, the assessment of the genetic polymorphism of the cereal grasses genotypes which are of interest both as a source of breeding material and as a variety candidate was carried out by DNA markers. Seventy-three loci were identified for the Festulolium and Lolium L. genotypes using the SCoT marker system, 69 of markers were polymorphic. This marker system revealed a high level of polymorphism in the studied genotypes of Festulolium and Lolium L. – 94.52%. For the genotypes of intergeneric hybrids of the Agropyron L. genus and their parent forms 90 loci were identified – 46 SCoT markers and 44 SRAP markers. From the total pool of markers 73 markers were polymorphic. On average, the level of polymorphism was 81.1%. For the genotypes of the Alopecurus L. genus interspecific hybrids and their parent forms 157 loci were identified – 52 for RAPD-PCR and 105 – for ISSR-PCR. Of the total pool of markers, 104 were polymorphic According to the results of DNA genotyping the genetic passports of cereal grasses were compiled.
For citation : Kondratskaya, I., Yukhimuk, A., Chizhik, O., Reshetnikov, V. (2022). DNA markers as a means of assessing the genetic diversity and identification of grasses. AGROFOR International Journal, Volume 7. Issue No. 3 pp. 112-117. DOI: 10.7251/AGRENG2203112K
Keywords : cereal grasses, genetic passport, genotype, SCoT markers, ISSR, RAPD, SRAP.
   
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