| 000 | 02785nab a22004697a 4500 | ||
|---|---|---|---|
| 999 |
_c57963 _d57955 |
||
| 001 | 57963 | ||
| 003 | MX-TxCIM | ||
| 005 | 20220920151003.0 | ||
| 008 | 150901s2016 xxu|||p op||| 00| 0 eng d | ||
| 024 | 8 | _ahttps://doi.org/10.1094/PHYTO-12-15-0337-R | |
| 040 | _aMX-TxCIM | ||
| 041 | _aeng | ||
| 100 | 1 |
_91711 _aNewcomb, M. |
|
| 245 | 1 | 0 |
_aKenyan Isolates of Puccinia graminis f. sp. tritici from 2008 to 2014 : _bvirulence to SrTmp in the Ug99 race group and implications for breeding programs |
| 260 |
_aUSA : _bAPS, _c2016. |
||
| 500 | _aPeer review | ||
| 500 | _aOpen Access | ||
| 520 | _aFrequent emergence of new variants in the Puccinia graminis f. sp. tritici Ug99 race group in Kenya has made pathogen survey a priority. We analyzed 140 isolates from 78 P. graminis f. sp. tritici samples collected in Kenya between 2008 and 2014 and identified six races, including three not detected prior to 2013. Genotypic analysis of 20 isolates from 2013 and 2014 collections showed that the new races TTHST, TTKTK, and TTKTT belong to the Ug99 race group. International advanced breeding lines were evaluated against an isolate of TTKTT (Sr31, Sr24, and SrTmp virulence) at the seedling stage. From 169 advanced lines from Kenya, 23% of lines with resistance to races TTKSK and TTKST were susceptible to TTKTT and, from two North American regional nurseries, 44 and 91% of resistant lines were susceptible. Three lines with combined resistance genes were developed to facilitate pathogen monitoring and race identification. These results indicate the increasing virulence and variability in the Kenyan P. graminis f. sp. tritici population and reveal vulnerabilities of elite germplasm to new races. | ||
| 526 |
_aWC _cFP3 |
||
| 546 | _aText in english | ||
| 591 | _bCIMMYT Informa: 1973 (August 18, 2016) | ||
| 650 | 7 |
_92130 _aPuccinia graminis _2AGROVOC |
|
| 650 | 7 |
_92129 _aVirulence _2AGROVOC |
|
| 650 | 7 |
_aBreeding _gAGROVOC _2 _91029 |
|
| 700 | 1 |
_92131 _aOlivera Firpo, P.D. |
|
| 700 | 1 |
_91699 _aRouse, M.N. |
|
| 700 | 1 |
_91700 _aSzabo, L.J. |
|
| 700 | 1 |
_91712 _aJohnson, J. |
|
| 700 | 1 |
_91713 _aGale, S. |
|
| 700 | 1 |
_91714 _aLuster, D.G. |
|
| 700 | 1 |
_92088 _aWanyera, R. |
|
| 700 | 1 |
_92971 _aMacharia, G. |
|
| 700 | 1 |
_9867 _aBhavani, S. _gGlobal Wheat Program _8INT2843 |
|
| 700 | 1 |
_91719 _aPatpour, M. |
|
| 700 | 1 |
_91701 _aHovmoller, M.S. |
|
| 700 | 1 |
_93590 _aFetch, T.G. |
|
| 700 | 0 |
_91696 _aYue Jin |
|
| 700 | 1 |
_aHodson, D.P. _gSocioeconomics Program _gSustainable Agrifood Systems _8INT2550 _9843 |
|
| 773 | 0 |
_w444676 _aAmerican Phytopathological Society _x0031-949X _dUSA : American Phytopathological Society (APS) _tPhytopathology _gv. 106, no. 7, p. 729-736 |
|
| 856 | 4 |
_yOpen Access through DSpace _uhttp://hdl.handle.net/10883/17070 |
|
| 942 |
_2ddc _cJA _n0 |
||