Tverdokhlib O. The genetic value of wheat species and forms - carriers of subgenome G to improvement of bread and durum wheats

Object: regularities of the form building at wide hybridization in the family Poaceae (R.Br.) Barnhart Objective: to identify regularities of traits expression and inheritance in the species and forms of wheat sections Timopheevii A.Filat. et Dorof. and Kiharae Dorof. et E. Migusch. at hybridization with spring bread and durum wheats. Methods: hybridological, morphophysiological, PCR, statistical. Novelty: the regularities of the expression and the variability of morphological characters, of seeds endurance to stress factors, crossability, fertility and form building process in hybrids with varieties of bread and durum wheats in the species and forms - carriers of the subgenom G depending on the genome composition. Introgressive lines of the bread and durum wheats with a valuable economic and biological features and their combinations are created. The regularities of inheritance of genetic markers - components of storage proteins and ISSR in transgressive lines obtained from T. kiharae and T. miguschovae are determined. We obtain The wheat forms with a new morphological feature - true pubescence of awns. Results: regularities of expression, variability and inheritance in hybrids with the bread and durum wheats of morphobiological traits of specieses and forms - carriers of the subgenom G in connection with genomic composition. Introgressive lines of the bread and durum wheats with a valuable economic and biological features and their combinations are created. The regularities of inheritance of genetic markers - components of the storage proteins and ISSR-markers introgressed from carriers of subgenom G into the hybrids are revealed. The forms of wheat having new, not described still in the genus Triticum L. morphological trait - true pubescent awns are created. Degree of implementation: The introgressive lines of bread and durum wheats with valuable economic and biological traits, three amphidiploids - carriers of the subgenom G selected and registered in the NCPGRU are used in breeding and research programs of the Plant Production Institute nd. a. V.Ya. Yuryev of NAAN, Myronivsky Institute of Wheat nd. a. V.N. Remeslo, Sumy National Agrarian University and included in the collection of the National Center for Plant Genetic Resources of Ukraine. The form with a new morphological feature - true pubescence of awns is included into the herbarium of the Kharkiv National University named after V.N. Karazin (№ 100071, 27.07.2011) which is included in the list of leading herbariums of the world. Field of implementation: research, breeding and educational institutions