| 000 | 03728nab|a22005777a|4500 | ||
|---|---|---|---|
| 999 |
_c62744 _d62736 |
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| 001 | 62744 | ||
| 003 | MX-TxCIM | ||
| 005 | 20211006074310.0 | ||
| 008 | 200423s2020||||xxu|||p|op||||00||0|eng|d | ||
| 022 | _a0011-183X | ||
| 022 | _a1435-0653 (Online) | ||
| 024 | 8 | _ahttps://doi.org/10.1002/csc2.20056 | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 100 | 1 |
_aRehman, M.U. _93273 |
|
| 245 | 1 | 0 | _aIdentification of seedling resistance to stem rust in advanced wheat lines and varieties from Pakistan |
| 260 |
_aMadison (USA) : _bCSSA : _bWiley, _c2020. |
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| 500 | _aPeer review | ||
| 500 | _aOpen Access | ||
| 520 | _aStem rust is a major disease of wheat (Triticum aestivum L.) worldwide and new Puccinia graminis f. sp. tritici (Pgt) races including TTKSK (Ug99) pose a serious threat to wheat production. The protection of new varieties against Pgt races can be increased by identifying and combining several types of stem rust resistance genes (Sr). We screened a set of 707 wheat lines and cultivars against 11 Pgt races under glass house conditions. Of the tested lines, groups of 99, 513, 289, and 515 exhibited low infection type (IT < 3) to races TTKSK, TRTTF, TTTTF, and RRTTF, respectively. Screening against Pgt races (QFCSC, QTHJC, MCCFC, RCRSC, RKRQC, TPMKC, and QCCSM) showed that most of the tested lines were resistant. These lines were screened with eight DNA markers for the presence of Sr2, Sr9a, Sr24, Sr25, Sr31, Sr36, Sr38, and Sr57 genes. Sr36 was absent from all the tested lines, whereas Sr9a was detected in four lines. The marker Sr2_ger93p predicted the presence of Sr2 in 40 lines, and marker barc71 suggested the presence of Sr24 in 12 lines. Sr25 and Sr38 were present in 13 and 54 lines, respectively. The highest frequency of Sr genes was observed for Sr57 (199 lines) and Sr31 (177 lines). Except for lines carrying Sr25 and/or Sr24 genes, most lines were susceptible to Pgt race TTKSK. Since Ug99 is overcoming Sr genes worldwide, including Sr24 and Sr36, a strategy to pyramid multiple Sr genes in new cultivars should be pursued to achieve a durable control of stem rust. The effectiveness of lines such as NRL0902, 11050, B‐2(RF)‐11, and CCRI‐6, found in the current study and featuring other Sr genes, warrants further investigation to identify the source of their resistance and use it in Pakistan wheat breeding programs. | ||
| 546 | _aText in English | ||
| 591 | _aRehman, M.U. : Not in IRS Staff list but CIMMYT Affiliation | ||
| 591 | _aMarshall, D. : No CIMMYT Affiliation | ||
| 650 | 7 |
_aRusts _gAGROVOC _2 _91251 |
|
| 650 | 7 |
_2AGROVOC _92130 _aPuccinia graminis |
|
| 650 | 7 |
_aWheat _gAGROVOC _2 _91310 |
|
| 650 | 7 |
_aDisease resistance _gAGROVOC _2 _91077 |
|
| 650 | 7 |
_2AGROVOC _92277 _aGenetic resistance |
|
| 650 | 0 |
_2AGROVOC _91848 _aGenetic markers |
|
| 700 | 1 |
_aGale, S. _91713 |
|
| 700 | 1 |
_aBrown-Guedira, G. _96014 |
|
| 700 | 0 |
_aYue Jin _91696 |
|
| 700 | 1 |
_aMarshall, D. _92748 _8I1706672 _gGenetic Resource Program |
|
| 700 | 1 |
_aWhitcher, L.W. _98263 |
|
| 700 | 1 |
_aWilliamson, S. _98264 |
|
| 700 | 1 |
_aRouse, M.N. _91699 |
|
| 700 | 1 |
_aAhmad, J. _92889 |
|
| 700 | 1 |
_aAhmad, G. _91889 |
|
| 700 | 1 |
_aShah, I.A. _93321 |
|
| 700 | 0 |
_aMehboob Ali Sial _94257 |
|
| 700 | 1 |
_aRauf, Y. _93322 |
|
| 700 | 1 |
_aRattu, A.R. _93311 |
|
| 700 | 1 |
_aMirza, J.I. _91946 |
|
| 700 | 1 |
_aWard, R.W. _9856 _8INT2733 _gGlobal Wheat Program |
|
| 700 | 1 |
_aNadeem, M. _916553 |
|
| 700 | 1 |
_aUllah, G. _92893 |
|
| 700 | 1 |
_aImtiaz, M. _9917 _8INT3326 _gGlobal Wheat Program |
|
| 773 | 0 |
_tCrop Science _gv. 60, no. 2, p. 804-811 _dMadison (USA) : CSSA : Wiley, 2020. _x1435-0653 _wu444244 |
|
| 856 | 4 |
_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/20985 |
|
| 942 |
_cJA _n0 _2ddc |
||