Acta Agronomica Hungarica
Volume/Issue:
Volume 61: Issue 2
Characterization of Triticum timopheevii Zhuk. gene bank accessions for the development of synthetic amphiploid wheat lines
Authors:
P. MikóHungarian Academy of Sciences Agricultural Institute, Centre for Agricultural Research Martonvásár Hungary

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M. MegyeriHungarian Academy of Sciences Agricultural Institute, Centre for Agricultural Research Martonvásár Hungary

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M. Molnár-LángHungarian Academy of Sciences Agricultural Institute, Centre for Agricultural Research Martonvásár Hungary

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G. KovácsHungarian Academy of Sciences Agricultural Institute, Centre for Agricultural Research Martonvásár Hungary

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Pages:
113–121
Online Publication Date:
03 Sep 2013
Publication Date:
01 Jun 2013
Article Category:
Research Article
DOI:
https://doi.org/10.1556/AAgr.61.2013.2.3
Keywords:
Triticum timopheevii Zhuk.; Triticum monococcum L.; characterization; synthetic amphiploid; interspecific hybridization; prebreeding
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In recent years 56 accessions of Triticum timopheevii Zhuk. (2n=4x=28, AtAtGG) were characterized for the main phenotypic and resistance characters. Among these accessions 38 originated from the base species together with subspecies and varietas forms thereof, and 18 belong to the subspecies armeniacum group. After the evaluation of field assessment data gathered over 12 years, the most promising 11 accessions were selected for a crossability trial with cultivated einkorn. As a result of this trial, the accession with the highest seed set (Acc. No.: MVGB845) was chosen for the development of a new synthetic amphiploid using the same semi-dwarf line of diploid cultivated einkorn (Triticum monococcum L. ssp. monococcum 1T-1, 2n=2x=14, AmAm) as in the crossability trial. This einkorn line was bred in Martonvásár, and has both outstanding resistance and other promising phenotypic and agronomic characters.After crossing the accession MVGB845 with 1T-1, the triploid hybrids were treated with colchicine to obtain fertile progenies with a doubled genome. The newly developed synthetic hexaploid wheat breeding stock (named Triticum timococcum Kost., 2n=6x=42, AtAtGGAmAm) could ease the introgression of valuable resistance genes into bread wheat at the hexaploid level (bridge-crossing).The aim of the present research was to redevelop Triticum timococcum based on a detailed characterization of gene bank accessions, and to introduce this new material into wheat breeding.

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Cover Acta Agronomica Hungarica
Acta Agronomica Hungarica
Print ISSN:
0238-0161
Online ISSN:
1588-2527

Acta Agronomica Hungarica
Language English
Russian
German
French
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Year of
Foundation		 1950
Publication
Programme		 ceased
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per Year		  
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Founder Magyar Tudományos Akadémia   
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Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
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Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0238-0161 (Print)
ISSN 1588-2527 (Online)

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