000			02873nab a22004457a 4500
001			G98454
003			MX-TxCIM
005			20211006082413.0
008			121211b |||p||p||||||| |z||| |
022			_a1572-9788 (Revista en electrónico)
022	0		_a1380-3743
024	8		_ahttps://doi.org/10.1007/s11032-013-0007-x
040			_aMX-TxCIM
090			_aCIS-7427
100	1		_aLifang Xing
245	0	0	_aMolecular mapping of leaf rust resistance gene LrFun in Romanian wheat line Fundulea 900
260			_c2014
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1380-3743
520			_aLeaf rust, caused by Puccinia triticina, is one of the major wheat diseases worldwide and poses a constant threat to common wheat (Triticum aestivum L.) production and food security. Results from the F2 and F2:3 populations derived from a cross between resistant line Fundulea 900 and susceptible cultivar Thatcher indicated that a single dominant gene, tentatively designated LrFun, conferred resistance to leaf rust. In order to identify other possible genes in Fundulea 900, nine P. triticina pathotypes avirulent on Fundulea 900 were used to inoculate F2:3 families. The results showed that at least two leaf rust resistance genes were present in Fundulea 900. A total of 1,706 pairs of simple sequence repeat (SSR) primers were used to test the parents and resistant and susceptible bulks. Eight polymorphic markers from chromosome 7BL were used for genotyping the F2 and F2:3 populations. LrFun was linked to eight SSR loci on chromosome 7BL. The two closest flanking SSR loci were Xgwm344 and Xwmc70, with genetic distances of 4.4 and 5.7 cM, respectively. At present four leaf rust resistance genes, Lr14a, Lr14b, Lr68 and LrBi16, are located on chromosome 7BL. In a seedling test with 12 P. triticina isolates, the reaction patterns of LrFun were different from those of lines carrying Lr14a, Lr14b and LrBi16. Lr68 is an adult plant resistance gene, and it is different from the seedling resistance gene LrFun. Therefore, we concluded that LrFun is a new leaf rust resistance gene.
536			_aGlobal Wheat Program
546			_aEnglish
591			_aCIMMYT Informa No. 1873
593			_aLucia Segura
594			_aINT2411
595			_aCSC
650	1	0	_acommon wheat
650	1	0	_aleaf rust _91169
650	1	0	_amolecular mapping _91667
650	1	0	_aPuccinia triticina _91228
650	1	0	_aSSR markers
700	1		_aCuifen Wang, _ecoaut.
700	1		_aDaqun Liu, _ecoaut.
700	1		_aTaiguo Liu, _ecoaut.
700	1		_aWanquan Chen, _ecoaut.
700	1		_aXianchun Xia, _ecoaut. _9377
700	1		_aZaifeng Li, _ecoaut.
700	1		_aHe Zhonghu _gGlobal Wheat Program _8INT2411 _9838
773	0		_tMolecular Breeding _gv. 33, no. 4, p. 931-937
942			_cJA
999			_c30350 _d30350