中文摘要：

同地2年种植种间杂交组合协青早B（Oryzasativa）//协青早B/东乡野生稻（O.rufipogon）的202个BC1F5株系,利用含149个DNA标记的连锁图谱,检测到23个产量性状QTLs,包括每株穗数2个、每穗实粒数4个、每穗总粒数6个、结实率5个、千粒重4个和单株产量2个;有9个QTLs的增效等位基因来自东乡野生稻,包括每株穗数2个、每穗实粒数1个、每穗总粒数5个和千粒重1个,其中6个与前人应用野栽群体检测到的产量性状QTLs位于相似区间。这23个QTLs分布除第11染色体外的所有水稻染色体中,其中18个形成8个QTL簇,含增效等位基因来自野生稻的2个、来自协青早B的4个,效应方向发生变化的2个。

英文摘要：

A rice population consisting of 202 BC1F5 lines of the interspecies cross Xieqingzao B （Oryza sativa）//Xieqingzao B/Dongxiang wild rice （O. rufipogon） was tested in 2 years at the same trial site. A total of 23 QTLs for yield gaits were detected using a linkage map consisting of 149 markers. The numbers of QTLs detected for individual traits were 2 for the number of panicle per plant （NP）, 4 for the number of filled grains per panicle （NFGP）, 6 for the total number of spikelets per panicle （TNSP）, 5 for spikelet fertility （SF）, 4 for 1000-grain weight （TGWT） and 2 for grain yield per plant （GYD）. Nine of the QTLs had the enhancing alleles from the Dongxiang wild rice, including 2 for NP, 1 for NFGP, 5 for TNSP and 1 for TGWT. Six of them were located in intervals where QTLs for yield traits have been reported in other studies using 9 interspecies populations. The 23 QTLs were distributed in all the 12 rice chromosomes except chromosome 11. Eighteen of the QTLs were located in 8 clusters. The enhancing alleles were from Xieqingzao B in 4 clusters and from the Dongxiang wild rice in 2 clusters, while the allelic direction in the remaining clusters varied for different traits.