01345naa a2200157 a 450000100080000000500110000800800410001910000170006024501660007726000090024352008210025265000130107365000100108665300130109677300780110918330012019-02-20       1959    bl ---       0--  u    #d1 aKNOTT, D. R.  aThe inheritance of rust resistance. IV. Monosomic analysis of rust resistance and some other characters in six varieties of wheat incluing Gabo and Kenya Farmer.  c1959  aIn previous papers in this series, 7 genes, designated 5r6-5r12, controlling resistance to stem rust were identified. To determine the chromosomes carrying these genes, each of the 21 Chinese monosomics was crossed with the varieties, Gabo, Kenya Farmer, Egypt Na95 and Veadeiro. In addition mono-X was crossed with Lee and mono-XX with Red Egyptian. The F2 populations from the crosses were tested with either or both of races 15B and 56 and in some cases were classified for other characters. The gene Sr7 was found to be on chromosome VIII but not linked to the gene Hd (Hooded). The locations of genes 5r6, Sr8, Sr9, Sr11 and Sr12 have been reported by other authors and were confirmed as follows: Sr6 - chromosome XX, Sr8 - chromosome VI, Sr9 - chromosome XIII, Sr11 and Sr12 - chromosomc X (28% recombination).  aFerrugem  aTrigo  aDoenças  tCanadian Journal of Plant Science, Ottawagv. 39, n. 2, p. 215-228, 1959.