Cereal Research Communications
Volume/Issue:
Volume 36: Issue Supplement-6
Mapping of FHB resistance QTLs in the Mini Mano/Frontana and Frontana/Remus DH populations
Authors:
Ágnes Szabó-Hevér Cereal Research Non-profit Company P.O. Box 391 H-6701 Szeged Hungary

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Beáta Tóth Cereal Research Non-profit Company P.O. Box 391 H-6701 Szeged Hungary

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,
Szabolcs Lehoczki-Krsjak

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Ákos Mesterházy Cereal Research Non-profit Company P.O. Box 391 H-6701 Szeged Hungary

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Pages:
271–275
Online Publication Date:
12 Sep 2008
Publication Date:
01 Sep 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1556/crc.36.2008.suppl.b.26
Keywords:
Triticum aestivum ; F. graminearum ; F. culmorum ; QTL; Fusarium Head Blight; resistance
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Fusarium head blight (FHB) is a devastating disease of wheat ( Triticum aestivum L.) world-wide. The objective of this study was to identify FHB resistance QTLs of the Brazilian spring wheat cultivar Frontana through molecular mapping. Frontana has small and medium effective QTLs. These types of QTLs are sensitive for the environmental factors and for the problems of heterogeneity. 206 DH lines from Frontana/Remus (IFA-Tulln) /2005–2006/ and 105 DH lines of Mini Mano/Frontana (CRC Szeged) /2006–2007/ were inoculated with isolates of F. graminearum and F. culmorum . The Frontana/Remus DH population had wide differences in flowering time and plant height. MM/Frontana was created by CRC, Szeged so that too early and late DH lines were discarded and the remaining lines flowered within five days. Lines with extra plant height were also discarded, so differences were kept within 20–30 cm. In the Frontana/Remus population QTLs were identified on the chromosomes 3B, 5A, 6B. In the MM/Frontana population chromosomes 3B and 5B gave positive signal. Although in both populations Frontana was the resistant parent no QTL markers were identical for them. It seems that the more homogeneous population increases the accuracy of the QTL analysis. An increased morphological homogeneity seems to be necessary to decrease „background noise“ in QTL analyses and increase precision. Until now no QTL were found that gave positive signs for all epidemic situations. As QTLs are not validated, it is early to apply MAS in breeding.

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Cover Cereal Research Communications
Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company
Print ISSN:
0133-3720
Online ISSN:
1788-9170

 

 

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Cereal Research Communications
Language English
Size A4
Year of
Foundation		 1973
Volumes
per Year		 1
Issues
per Year		 4
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)

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