Abstract: Markers assisted selection is still seldom used in pepper breeding in China, though many markers are reported recently. In order to obtain genotypes for researching of relationship of QTLs resistant to PVY, AFLP, CAPS, SCAR markers were used to assist selection of QTLs for resistance to PVY in BC₂ and BC₁S₁ segregating progenies from pepper 'perennial' and 'Yolo Wonder'. With the markers, 47 plants with resistant allele in major QTL locus, then from which 25 plants with resistant allele in LG9 PY2, at last 11 plants with resistant allele in LG11 P10 were selected from the BC₂ population. And 55 plants with homozygous resistant allele in LG9 PY2, and 12 plants with homozygous resistant allele in major QTL were selected from the BC₁S₁ population. X² analysis showed that the segregating ratio in fact is not significantly different with that in theory.

Key words: Capsicum annuum L., pepper, PVY, markers assisted selection, QTLs