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GrainGenes Reference Report: CRS-43-307

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Reference	CRS-43-307
Title	Quantitative trait loci for fusarium head blight resistance in barley detected in a two-rowed by six-rowed population
Journal	Crop Science
Year	2003
Volume	43
Pages	307-318
Author	Mesfin A [ Show all 7 ]
Abstract	Summary: Fusarium head blight (FHB) is a disease problem (primarily caused by Fusarium graminearum Schwabe) that affects the quality and yield of barley (Hordeum vulgare L.) grain. The objectives of this study were to identify the location of quantitative trait loci (QTL) for resistance to FHB in a two-rowed by six-rowed population, to examine the association of FHB resistance with heading date and the Vrs1 (two-rowed spike morphology) locus, to validate the location of the major FHB resistance QTL primarily detected in the field, and to identify simple sequence repeat (SSR) markers linked to the QTL for FHB resistance. We created a genetic map of 143 molecular markers from a population derived from the parents Fredrickson (two-rowed, moderately resistant) and Stander (six-rowed, susceptible). The Fredrickson/Stander population was evaluated in two field environments by a grain spawn inoculation method, two field environments by a spray inoculation, and two greenhouse environments. QTL analysis detected three distinct regions on chromosome 2(2H) associated with FHB resistance; two of these regions were also associated with resistance to deoxynivalenol (DON) accumulation. One FHB resistance QTL was also associated with heading date, while another FHB resistance QTL was found associated with the Vrs1 locus. The third FHB resistance QTL was detected only in the greenhouse, but was coincident with a QTL for resistance to DON accumulation in the field. All three QTL were detected in the greenhouse, indicating that this environment may be useful for selecting FHB resistant barley genotypes. SSR markers were identified that are linked with each QTL and could prove useful for marker-assisted trait manipulation. Finally, the two major QTL detected in the field were validated using an independent population with Fredrickson and Stander parents
Germplasm	Stander (barley) Fredrickson (barley) M81 (barley)
Locus	[ Hide all but 1 of 143 ] CDO580 bcd147 BCD1087a RZ682 Bmac0213 Bmag0872 Bmac0090 Bmac0032 Bmac0093 EBmac0615 HVBKASI Bmag0125 EBmac0415 Bmag0905 Bmac0067 Bmag0225 Bmag0606 Bmag0013 EBmac0541 Bmag0740 Bmag0306 Bmag0808 Bmac0310 EBmac0701 Bmag0770 Bmag0323 Bmag0337 Bmag0812 Bmag0500 Bmac0018 Bmac0040 Bmag0173 Bmag0870 Bmag0206 Bmag0110 Bmac0064 MWG878 vrs1 WG110 ABG472 ABG397 MWG502 ABC717 ABG495A ABG496 MWG916 MWG820 Amy1 ABG461B ABG002 ABG074 MWG2077 MWG858 MWG865 MWG503 ABC252 ABC153 cMWG720 MWG680 MWG803 ABC172 MWG634 ABC321 ABG498 ABC168 ABG391 MWG934 MWG514 MWG564 MWG836 CDO348 ABG476 ABC305 HVM20 HVM36 EBmac0557 HVM54 Bmag0122 HVM60 HVM62 HVM40 HVM68 HVMLOH1A HVM67 Bmac0163 Bmac0306 EBmac0970 GMS061 Bmac0251 Bmac0156 HVPRP1B bcd349 MWG058 MWG2218 ABC253 ABG058 ABG014 MWG555 MWG635b ABG703b MWG571a MWG2227b MWG887b MWG2227a MWG549a MWG2196 cMWG684a ABG497b ABC152A ABC256 ABG004 ABG005 ABG008 ABG072 Act8B BCD738 CDO345 MWG036B MWG041 MWG077 MWG571B MWG571D ABC165C BCD098 ABC156B cMWG663A CDO057A MWG882B ABG609 CDO020 MWG632C ABG497A Bmac0218c HVM05 MWG851 Bmag138b Bmag0767 MWG649a EBmac521a EBmac521b Bmac0140 ABG010b ABG392
Map Data	Barley, FxS, FHB QTL
QTL	QFhs.umn-7H [ Show all 48 ]
Keyword	agronomic traits [ Show all 43 ]

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