Association of some ISSR markers with some agronomic traits in Durum wheat

Abstract

The research was conducted during two seasons, at both of Izraa research center- GCSAR (rainfed) and Karahta research station- GCSAR (irrigated). Six durum wheat varieties were studied. The research aimed to study the genetic compatibility relationships of some genetic loci with some important agronomic and morpho-physiological traits related to drought tolerance. Results showed significant differences within varieties, locations, and interactions for most of the studied traits. Results also revealed positive and negative significant correlations within yield and its components, in addition to the positive and negative significant correlations observed between yield and its components on one side, and plant height, peduncle length, relative water content and leaf color on the other side. Regarding the molecular study, the 21 markers resulted out of 8 studied ISSR primers, were tested for their association with the 8 studied traits resulting 336 associations, only 75 of them were significant. Associations ranged from 2 associations for relative water content to 18 associations for number of grains per spike. Our results are to be used in selection the promising genotypes under drought stress by using marker assisted selection (MAS).