000 | 03217nab a22004577a 4500 | ||
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001 | G448292 | ||
003 | MX-TxCIM | ||
005 | 20231002202426.0 | ||
008 | 210831s2002 xxu|||p|op||| 00| 0 eng d | ||
022 | _a1435-0653 (Online) | ||
024 | 8 | _ahttps://doi.org/10.2135/cropsci2002.1701 | |
040 | _aMX-TxCIM | ||
041 | _aeng | ||
072 | 0 | _aF30 | |
072 | 0 | _aH20 | |
090 | _aCIS-3466 | ||
100 | 1 |
_aCastro, A.J. _92689 |
|
245 | 1 | 0 | _aCoincident QTL which determine seedling and adult plant resistance to strip rust in barley |
260 |
_aUSA : _bCSSA : _bWiley, _c2002. |
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340 | _aComputer File | ||
500 | _aPeer review | ||
500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X | ||
520 | _aBarley stripe rust (caused by Puccinia striiformis Westend. f. sp. hordei) is an important disease of barley (Hordeum vulgare L. subsp. vulgare). This disease reached the Americas in 1975. It is now endemic from the Andean region of South America to western North America. We are systematically mapping quantitative resistance genes present in ICARDA/CIMMYT germplasm and introgressing these genes into barley germplasm adapted to western North America. Resistance to stripe rust in the Triticeae can be race- and growth-stage specific. In this study, we mapped genes conferring resistance at the seedling stage, after inoculation with defined isolates (PSH-1, PSH-13, PSH-14), in a doubled haploid population in which adult plant resistance genes had previously been mapped. The disease reaction data for each of three isolates fit a 3:1 (susceptible: resistant) ratio, indicating that two genes are required for resistance. Quantitative trait loci (QTL) effects and significance were estimated by means of QTL mapping procedures and logistic regression analysis, taking into account the binomial distribution of the trait. Two resistance QTL—one on chromosome 5 (5H) and one on chromosome 6 (6H)—were detected and in all cases ‘Shyri’ contributed the resistance alleles. No QTL × race interaction was detected. The two seedling resistance QTL map to the same regions of the genome as two of the four adult plant resistance QTL. These data lay the foundation for more detailed analyses directed at unraveling the genetics of qualitative and quantitative disease resistance mechanisms. | ||
546 | _aText in English | ||
591 | _a0210|Crop Science Society of America (CSSA)|AL-Wheat Program|Al-ABC Program|R01JOURN | ||
650 | 7 |
_aBarley _91018 _2AGROVOC |
|
650 | 7 |
_91842 _aPuccinia striiformis _2AGROVOC |
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650 | 7 |
_aRusts _2AGROVOC _91251 |
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650 | 7 |
_aSeedlings _2AGROVOC _95415 |
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650 | 7 |
_aDisease resistance _2AGROVOC _91077 |
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650 | 7 |
_aQuantitative Trait Loci _2AGROVOC _91853 |
|
700 | 0 |
_aXianming Chen _92097 |
|
700 | 1 |
_aHayes, P.M. _922669 |
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700 | 1 |
_aKnapp, S.J. _922670 |
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700 | 1 |
_aLine, R.F. _922671 |
|
700 | 1 |
_aToojinda, T. _922672 |
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700 | 1 |
_aVivar, H. _95562 |
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773 | 0 |
_tCrop Science _n631533 _gv. 42, no. 5, p. 1701-1708 _dUSA : CSSA : Wiley, 2002. _wG444244 _x1435-0653 |
|
856 | 4 |
_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/1323 |
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942 |
_cJA _2ddc _n0 |
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999 |
_c22477 _d22477 |