title: Mapping QTLs for Fertility Restoration of Different Cytoplasmic Male Sterility Types in Rice Using TwoOryza sativa ×O. rufipogonBackcross Inbred Line Populations.
abstract: Hybrid rice breeding using cytoplasmic male sterility/fertility restoration (CMS/Rf) systems plays an important role in ensuring global food security. Two backcross inbred line (BIL) populations derived from either Xieqingzao B (XB)//XB/Dongxiang wild rice (DWR) (XXD) or XB//DWR/XB (XDX) were used to detect quantitative trait loci (QTLs) for fertility restoration of Dwarf wild abortive- (DA-), Indonesia Paddy- (ID-), and DWR-type CMS in rice. Lines with ID- and DA-type CMS were testcrossed with both the XXD- and XDX-BILs, while the line with DWR-type CMS was testcrossed with the XDX-BILs only. A total of 16 QTLs for fertility restoration of CMS systems were identified, including three for DWR-type CMS, six for DA-type CMS, and seven for ID-type CMS. All of the additive alleles in the QTLs were derived fromOryza rufipogon. Eleven QTLs were clustered in five chromosomal regions, indicating that commonRfloci restored different CMS systems, and the favorableO.rufipogonalleles could be used to develop restorer lines for various CMS types by marker-assisted selection.
authors.affiliation: College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China; Rice Research Institute, Jiangxi Academy of Agricultural Sciences and Nanchang National Sub-Center for Rice Improvement, Nanchang, Jiangxi 330200, China.
authors.forename: Biao-Lin
authors.initials: BL
authors.lastname: Hu
authors.affiliation: College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
authors.forename: Jian-Kun
authors.identifier: 0000-0002-3398-7126
authors.initials: JK
authors.lastname: Xie
authors.affiliation: Rice Research Institute, Jiangxi Academy of Agricultural Sciences and Nanchang National Sub-Center for Rice Improvement, Nanchang, Jiangxi 330200, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wan
authors.affiliation: College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
authors.forename: Jin-Wei
authors.initials: JW
authors.lastname: Zhang
authors.affiliation: College of Life Science, Jiangxi Normal University, Nanchang, Jiangxi 330022, China.
authors.forename: Fan-Tao
authors.initials: FT
authors.lastname: Zhang
authors.affiliation: Rice Research Institute, Jiangxi Academy of Agricultural Sciences and Nanchang National Sub-Center for Rice Improvement, Nanchang, Jiangxi 330200, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Li
mesh_terms: D002874:Chromosome Mapping; D032461:Chromosomes, Plant / Q000235:genetics; D003433:Crosses, Genetic; D003593:Cytoplasm / Q000235:genetics*; D005298:Fertility; D005828:Genetics, Population; D007178:Inbreeding; D012275:Oryza / Q000235:genetics*; D010641:Phenotype; D051479:Plant Infertility / Q000235:genetics*; D040641:Quantitative Trait Loci / Q000235:genetics*