Open AccessUsing insensitive PPD-D1a allele for the early forms selection of bread wheat in the initial selection stages
Author(s) -
Mirskaya Galina,
N Rushina,
N. G. Sinyavina,
А. В. Кочетов,
Chesnokov Yuriy
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.53040/gppb7.2021.42
Subject(s) - cultivar , allele , heterosis , biology , winter wheat , selection (genetic algorithm) , agronomy , horticulture , veterinary medicine , microbiology and biotechnology , gene , genetics , hybrid , medicine , artificial intelligence , computer science
Determination the photoperiod-insensitive allele (Ppd-D1a) in wheat cultivars is necessary for use in breeding development of newly wheat cultivars. The aim of our study was to select breeding material by screening Ppd-D1 gene alleles and estimation value and the degree of heterosis in F1. Using these two methods, it is possible to select genetic material for increased breeding of new wheat lines that combine earliness and increased productivity. In this study 26 varieties of spring soft wheat were screened for the Ppd-D1 gene alleles. The Ppd-D1a allele was detected in 12 wheat varieties (ITMI 10, 29, 47, 57, 58, 59, 60, 89, 94, AFI-91, AFI-177, Opata 85), the recessive Ppd-D1b allele was detected in 14 wheat varieties (ITMI 7, 31, 32, 44, 80, 88, 83, 115, Zlata, Lisa, Agata, Lubava, W7984). Based on the results of a comprehensive assessment, parental pairs were chosen and 10 recombinants were obtained. Based on estimation value and the degree of heterosis of the main ear traits in F1, such as "ear length", "number of grains from the ear" and "weight of grains from the ear" were identified 4 crosses as initial to create wheat cultivars that combine earliness and increased productivity.