Genetic analysis of fertility-restorer genes in rice
Genetic analysis of fertility-restorer genes in rice
复制标题
水稻育性恢复基因的遗传分析
DOI：
10.1007/s10535-008-0092-6
复制
发表时间：
2008-09-01
影响因子：
1.5
通讯作者：
Zhu, Y. G.
中科院分区：
文献类型：
--
作者：
Tan, Y. P.;Li, S. Q.;Zhu, Y. G.
野生败育(WA)、红莲(HL)和Baro-II(Bt)是水稻重要的细胞质雄性不育类型。研究育性恢复基因的遗传方式、等位基因及其与细胞质雄性不育的关系是十分必要的。测交F_1代育性分析表明，HL-CMS和Bt-CMS的恢复-保持关系相似，而Wa-CMS和HL-CMS(或Bt-CMS)的恢复-保持关系存在差异。对Rf基因的遗传分析表明，HL-CMS和Bt-CMS受单显性Rf基因控制，Wa-CMS受1对或2对显性Rf基因控制，反映了配子体和孢子体恢复型CMS的特征。因此，在不同类型的不育系中，至少存在3个不同类型的RfFloi。
Wild-abortive (WA), Honglian (HL) and Baro-II (BT) are three important cytoplasmic male sterility (CMS) types in rice. It is essential to investigate genetic mode and allelism of fertility restorer (Rf) genes and the relationship betweenRfand CMS. Fertility of the all test-cross F1plants shows that the restorer-maintainer relationship is similar for HL-CMS and BT-CMS, while that is variance for WA-CMS and HL-CMS (or BT-CMS), respectively. Genetic analysis ofRfgenes indicates that HL-or BT-CMS are controlled by single dominantRfgene and WA-CMS is controlled by one or two pairs of dominantRfgenes, which reflects the characters of the gametophytic and sporophytic restoration CMS type. It is concluded that there are at least threeRfloci in different accessions withRfgenes for each CMS type.