000 02629nab a22003977a 4500
001 G99474
003 MX-TxCIM
005 20171220113634.0
008 121211b |||p||p||||||| |z||| |
022 _a0974-1275 (Revista en electrónico)
022 0 _a0971-7811
024 8 _ahttps://doi.org/10.1007/BF03263121
040 _aMX-TxCIM
041 0 _aEn
100 1 _aVasu, K.
245 0 0 _aMicrosatellite Marker Linked to a Leaf Rust Resistance Gene from Triticum monococcum L Transferred to Bread Wheat
260 _c2001
500 _aPeer-review: Yes - Open Access: Yes | http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0971-7811
520 _aTriticum monococcum L, a diploid wheat species closely related to the A genome of cultivated wheats, is highly resistant to leaf rust. A synthetic amphiploid, T. monococcum ? T. durum was crossed with T. aestivum cv WL711, highly susceptible to leaf rust. Leaf rust resistant derivatives were selected among backcross generations with the recurrent parent WL711 and cytologically analysed. Chromosome number of the leaf rust resistant BC1F3 progenies varied from 39 to 44. Six leaf rust resistant and susceptible bulks from different BC1F3 progenies were analysed using 29 wheat microsatellite(WMS) markers already mapped on A genome of bread wheat and found polymorphic among parents. One T. monococcum specific allele of WMS gwm136 locus was found to be closely linked to the leaf rust resistance gene in all the resistant bulks. Differential chromosome number, frequency of univalents and multivalents, however, indicated that the critical T. monococcum chromosome might be present in addition to the A genome chromosomes of wheat, substituted either for the B or D genome chromosome of wheat or translocated to chromosome 1A of wheat in one or the other bulks. The association of the T. monococcum specific allele of WMS gwm136 locus to leaf rust resistance was further confirmed from bulked segregant analysis in BC2F1 generation.
536 _aGenetic Resources Program
546 _aEnglish
591 _aNo CIMMYT affiliation
593 _aCarelia Juarez
594 _aINT3098
595 _aRPC
650 1 0 _aLeaf rust resistance
650 1 0 _amicrosatellites
_92261
650 1 0 _aTriticum monococcum
650 1 0 _aWheat
700 1 _aChhuneja, P.,
_ecoaut.
700 1 _aDhaliwal, H.S.,
_ecoaut.
700 1 _aSingh, H.,
_ecoaut.
700 1 _9892
_aSukhwinder-Singh
_gGenetic Resources Program
_8INT3098
_ecoaut.
773 0 _tJournal of Plant Biochemistry and Biotechnology
_gv. 10, no. 2, p. 127-132
942 _cJA
999 _c30830
_d30830