000			02802nab a22003617a 4500
001			G98286
003			MX-TxCIM
005			20171220113619.0
008			121211b |||p||p||||||| |z||| |
022			_a1435-0653 (Revista en electrónico)
022	0		_a0011-183X
024	8		_ahttps://doi.org/10.2135/cropsci2012.05.0317
040			_aMX-TxCIM
100	1		_9919 _aYuanfeng Hao _gGlobal Wheat Program _8INT3329
245	0	0	_aIdentification of PM8 suppressor at the PM3 locus in soft red winter wheat
260			_c2012
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X
520			_aThe 1BL.1RS wheat (Triticum aestivum L.)?rye (Secale cereale L.) translocation possesses genes Pm8, Yr9, Lr26, and Sr31 for resistance to several major fungal pathogens of small grain cereals. However, not all wheat cultivars with the 1RS translocation are resistant to Pm8-avirulent isolates of Blumeria graminis f. sp. tritici (Bgt), the causal pathogen of wheat powdery mildew. A suppressor is postulated to limit the function of Pm8 in certain genetic backgrounds, such as ?AGS 2000?. To illustrate the genetic basis of the suppressor in AGS 2000, a 178 recombinant inbred line (RIL) population was used by crossing AGS 2000 with another 1BL.1RS cultivar Pioneer 26R61 (Pm8 effective). A single Bgt isolate, Ken-2-5, avirulent to Pm8 and virulent to Pm3a was chosen to inoculate the entire RIL population at the seedling stage. One major quantitative trait locus (QTL), QSuPm.uga-1AS, was stably detected as having an inhibiting effect on Pm8 in AGS 2000, and the QTL was postulated to be Pm3a based on its location. Further evidence of the Pm8-suppressing nature of Pm3a was obtained when eight lines from the 2010 Gulf Atlantic Wheat Nursery were inoculated with Ken-2-5. The eight lines all have Pm8 (1BL.1RS) but were susceptible, as they also have Pm3a. In addition, a functional locus, QPm.uga-7AL, was identified in Pioneer 26R61, where it accounted for up to 41% of phenotypic variation in resistance to isolate Ken-2-5. QPm.uga-7AL was flanked by simple sequence repeat (SSR) markers Xcfa2257 and Xwmc525 on 7AL, and its relationship with other known Pm loci on this chromosome arm remains uncertain.
536			_aGlobal Wheat Program
546			_aEnglish
591			_aNo CIMMYT affiliation|Crop Science Society of America (CSSA)
593			_aLucia Segura
594			_aINT3329
595			_aRPC
700	1		_aCowger, C., _ecoaut.
700	1		_aDan Bland, D., _ecoaut.
700	1		_aJohnson, J., _ecoaut. _91712
700	1		_aParks, R., _ecoaut.
700	1		_aYingying Wang, _ecoaut.
700	1		_aZhenbang Chen, _ecoaut.
773	0		_tCrop Science _gv. 52, no. 6, p. 2438-2445
942			_cJA
999			_c30244 _d30244