Using insensitive PPD-D1a allele for the early forms selection of bread wheat in the initial selection stages
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633.111.1:631.52:575.1 (1)
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MIRSKAYA, Galina, RUSHINA, N., SINYAVINA, N., KOCHETOV, A., CHESNOKOV, Yuriy. Using insensitive PPD-D1a allele for the early forms selection of bread wheat in the initial selection stages. In: Genetica, fiziologia şi ameliorarea plantelor, Ed. 7 , 4-5 octombrie 2021, Chişinău. Chişinău: "Print-Caro" SRL, 2021, Ediția 7, pp. 160-162. ISBN 978-9975-56-912-5. DOI: https://doi.org/10.53040/gppb7.2021.42
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Genetica, fiziologia şi ameliorarea plantelor
Ediția 7, 2021
Conferința "Genetica, fiziologia şi ameliorarea plantelor"
7 , Chişinău, Moldova, 4-5 octombrie 2021

Using insensitive PPD-D1a allele for the early forms selection of bread wheat in the initial selection stages

DOI:https://doi.org/10.53040/gppb7.2021.42
CZU: 633.111.1:631.52:575.1

Pag. 160-162

Mirskaya Galina, Rushina N., Sinyavina N., Kochetov A., Chesnokov Yuriy
 
Agrophysical Research Institute, St. Petersburg
 
 
Disponibil în IBN: 6 octombrie 2021


Rezumat

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.

Cuvinte-cheie
spring bread wheat, photoperiod, molecular markers, heading time, Hybrid, Heterosis, spike productivity