000 03339nab|a22003737a|4500
999 _c60945
_d60937
001 60945
003 MX-TxCIM
005 20211027173716.0
008 190913s2019||||sz |||p|op||||00||0|eng|d
022 _a2073-4395
024 8 _ahttps://doi.org/10.3390/agronomy9090497
040 _aMX-TxCIM
041 _aeng
100 1 _aRandhawa, M.S.
_8I1706569
_91665
_gGlobal Wheat Program
245 1 _aMarker assisted transfer of stripe rust and stem rust resistance genes into four wheat cultivars
260 _aBasel (Switzerland) :
_bMDPI,
_c2019.
500 _aPeer review
500 _aOpen Access
520 _aThree rust diseases namely; stem rust caused by Puccinia graminis f. sp. tritici (Pgt), leaf rust caused by Puccinia triticina (Pt), and stripe rust caused by Puccinia striiformis f. sp. tritici (Pst), are the most common fungal diseases of wheat (Triticum aestivum L.) and cause significant yield losses worldwide including Australia. Recently characterized stripe rust resistance genes Yr51 and Yr57 are effective against pre- and post-2002 Pst pathotypes in Australia. Similarly, stem rust resistance genes Sr22, Sr26, and Sr50 are effective against the Pgt pathotype TTKSK (Ug99) and its derivatives in addition to commercially important Australian pathotypes. Effectiveness of these genes make them good candidates for combining with known pleiotropic adult plant resistance (PAPR) genes to achieve durable resistance against three rust pathogens. This study was planned to transfer rust resistance genes Yr51, Yr57, Sr22, Sr26, and Sr50 into two Australian (Gladius and Livingston) and two Indian (PBW550 and DBW17) wheat cultivars through marker assisted selection (MAS). These cultivars also carry other rust resistance genes: Gladius carries Lr37/Yr17/Sr38 and Sr24/Lr24; Livingston carries Lr34/Yr18/Sr57, Lr37/Yr17/Sr38, and Sr2; PBW550 and DBW17 carry Lr34/Yr18/Sr57 and Lr26/Yr9/Sr31. Donor sources of Yr51 (AUS91456), Yr57 (AUS91463), Sr22 (Sr22/3*K441), Sr26 (Sr26 WA1), and Sr50 (Dra-1/Chinese Spring ph1b/2/3* Gabo) were crossed with each of the recurrent parents to produce backcross progenies. Markers linked to Yr51 (sun104), Yr57 (gwm389 and BS00062676), Sr22 (cssu22), Sr26 (Sr26#43), and Sr50 (Sr50-5p-F3, R2) were used for their MAS and markers csLV34 (Lr34/Yr18/Sr57), VENTRIUP-LN2 (Lr37/Yr17/Sr38), Sr24#12 (Sr24/Lr24), and csSr2 (Sr2) were used to select genes present in recurrent parents. Progenies of selected individuals were grown and selected under field conditions for plant type and adult plant rust responses. Final selections were genotyped with the relevant markers. Backcross derivatives of these genes were distributed to breeding companies for use as resistance donors.
546 _aText in English
650 7 _2AGROVOC
_91848
_aGenetic markers
650 7 _aRusts
_gAGROVOC
_2
_91251
650 7 _aWheat
_gAGROVOC
_2
_91310
650 7 _aDisease resistance
_gAGROVOC
_2
_91077
700 1 _aBains, N.
_92884
700 1 _aSohu, V.S.
_91878
700 0 _aChhuneja, P.
_97983
700 1 _9341
_aTrethowan, R.M.
700 1 _aBariana, H.S.
_91668
700 1 _aBansal, U.
_91670
773 0 _tAgronomy
_gv. 9, no. 9, art. 497
_dBasel (Switzerland) : MDPI, 2019.
_x2073-4395
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/20545
942 _cJA
_n0
_2ddc