000 03376nab a22004817a 4500
001 G90553
003 MX-TxCIM
005 20240919021001.0
008 210928s2008 xxu|||p|op||| 00| 0 eng d
022 _a1435-0653 (Online)
024 8 _ahttps://doi.org/10.2135/cropsci2007.08.0474
040 _aMX-TxCIM
041 _aeng
090 _aCIS-5345
100 1 _aKolmer, J.A.
_93313
245 1 0 _aAnalysis of the Lr34/Yr18 rust resistance region in wheat germplasm
260 _aUSA :
_bCSSA :
_bWiley,
_c2008.
340 _aComputer File|Printed
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 _aThe Lr34/Yr18 adult plant resistance gene contributes significantly to durable leaf rust (caused by Puccinia triticina Eriks.) resistance. Simple and robust molecular markers that enable early detection of Lr34/Yr18 are a major advancement in wheat (Triticum aestivum L.) breeding. An insertion/deletion size variant located at the csLV34 locus on chromosome 7D within an intron sequence of a sulfate transporter-like gene tightly linked to the Lr34/Yr18 dual rust resistance gene was used to examine a global collection of wheat cultivars, landraces, and D genome–containing diploid and polyploid species of wheat relatives. Two predominant allelic size variants, csLV34a and b, found among the wheat cultivars showed disparate variation in different wheat growing zones. A strong association was observed between the presence of Lr34/Yr18 and the csLV34b allele and wheat lines known to have Lr34/Yr18 that had the csLV34a allele were rare. All landraces with the exception of those from China were predominantly of the csLV34a type. Only one size variant, csLV34a, was detected among the diploid and polyploid D genome–containing species, indicating that csLV34b arose subsequent to hexaploid bread wheat synthesis. The lineage of the csLV34b allele associated with Lr34/Yr18 in modern wheat cultivars from North and South America, CIMMYT, Australia, and Russia was tracked back to the cultivars Mentana and Ardito developed in Italy by Nazareno Strampelli in the early 1900s. The robustness of the csLV34 marker in postulating the likely occurrence of Lr34/Yr18 across a wide range of wheat germplasm and its utility in wheat breeding was confirmed.
536 _aGlobal Wheat Program
546 _aText in English
591 _aCrop Science Society of America (CSSA)
594 _aINT0610
650 7 _2AGROVOC
_91310
_aWheat
650 7 _2AGROVOC
_91136
_aGermplasm
650 7 _2AGROVOC
_91251
_aRusts
650 7 _2AGROVOC
_92277
_aGenetic resistance
700 1 _aSingh, R.P.
_gGlobal Wheat Program
_8INT0610
_9825
700 1 _923375
_aGarvin, D.F.
700 1 _92075
_aViccars, L.
700 1 _aWilliam, H.M.
_8I1706703
_gExcellence in Breeding
_919524
700 1 _aHuerta-Espino, J.
_gGlobal Wheat Program
_8CHUE01
_9397
700 1 _9237
_aOgbonnaya, F.C.
700 1 _923376
_aRaman, H.
700 1 _91374
_aOrford, S.
700 1 _91668
_aBariana, H.S.
700 1 _91697
_aLagudah, E.S.
773 0 _tCrop Science
_n635292
_gv. 48, no. 5, p. 1841-1852
_dUSA : CSSA : Wiley, 2008.
_wG444244
_x1435-0653
856 4 _yAccess only for CIMMYT Staff
_uhttps://hdl.handle.net/20.500.12665/1551
942 _cJA
_2ddc
_n0
999 _c27067
_d27067