01852naa a2200253 a 450000100080000000500110000800800410001902400510006010000170011124501690012826000090029752010240030665000090133065000100133965000230134965000170137265300270138965300230141665300170143970000210145670000230147770000200150077300780152012118612022-04-29       2002    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1007/s00122-002-0869-52DOI1 aBRONDANI, C.  aQTL mapping and introgression of yield-related traits from Oryza glumaepatula to cultivated rice (Oryza sativa) using microsatellite markers.h[electronic resource]  c2002  aRice (Oryza sativa) cultivar development currently faces the task of overcoming yield plateaus, which is difficult due to the narrow genetic base of breeding programs. Oryza glumaepatula is a diploid wild relative of cultivated rice, native to Central and South America, and is therefore a potential source of alleles of agronomic importance to rice breeding programs. We studied 11 agronomic traits in BC2F2 families of the interspecific cross Oryza sativa x O. glumaepatula. Transgressive lines which are almost isogenic to the elite recurrent O. sativa parent were identified for most of these traits. Quantitative trait locus (QTL) analysis was performed by single-point and interval mapping using a molecular map based on 157 microsatellite and STS markers. Marker regions accounting for 14.5 to 72.9% of a phenotypic variation trait were identified in 9 of the 12 rice chromosomes. Positive QTL effects from O. glumaepatula were observed in chromosomal regions associated with tillering and panicle-number traits.  arice  aArroz  aMarcador Molecular  aOryza Sativa  aMicrosatellite markers  aOryza glumaepatula  aQTL analysis1 aRANGEL, P. H. N.1 aBRONDANI, R. P. V.1 aFERREIRA, M. E.  tTheoretical and Applied Geneticsgv. 104, n. 6/7, p. 1192-1203, May 2002.