NWIPB OpenIR
QTug.sau-3B Is a Major Quantitative Trait Locus for Wheat Hexaploidization
Hao, Ming ; Luo, Jiangtao ; Zeng, Deying ; Zhang, Li ; Ning, Shunzong ; Yuan, Zhongwei ; Yan, Zehong ; Zhang, Huaigang ; Zheng, Youliang ; Feuillet, Catherine ; Choulet, Frederic ; Yen, Yang ; Zhang, Lianquan ; Liu, Dengcai
2014-10-01
发表期刊G3-GENES GENOMES GENETICS ; Hao, M; Luo, JT; Zeng, DY; Zhang, L; Ning, SZ; Yuan, ZW; Yan, ZH; Zhang, HG; Zheng, YL; Feuillet, C; Choulet, F; Yen, Y; Zhang, LQ; Liu, DC.QTug.sau-3B Is a Major Quantitative Trait Locus for Wheat Hexaploidization,G3-GENES GENOMES GENETICS,2014,4(10):1943
摘要Meiotic nonreduction resulting in unreduced gametes is thought to be the predominant mechanism underlying allopolyploid formation in plants. Until now, however, its genetic base was largely unknown. The allohexaploid crop common wheat (Triticum aestivum L.), which originated from hybrids of T. turgidum L. with Aegilops tauschii Cosson, provides a model to address this issue. Our observations of meiosis in pollen mother cells from T. turgidumxAe. tauschii hybrids indicated that first division restitution, which exhibited prolonged cell division during meiosis I, was responsible for unreduced gamete formation. A major quantitative trait locus (QTL) for this trait, named QTug.sau-3B, was detected on chromosome 3B in two T. turgidumxAe. tauschii haploid populations. This QTL is situated between markers Xgwm285 and Xcfp1012 and covered a genetic distance of 1 cM in one population. QTug.sau-3B is a haploid-dependent QTL because it was not detected in doubled haploid populations. Comparative genome analysis indicated that this QTL was close to Ttam-3B, a collinear homolog of tam in wheat. Although the relationship between QTug.sau-3B and Ttam requires further study, high frequencies of unreduced gametes may be related to reduced expression of Ttam in wheat.; Meiotic nonreduction resulting in unreduced gametes is thought to be the predominant mechanism underlying allopolyploid formation in plants. Until now, however, its genetic base was largely unknown. The allohexaploid crop common wheat (Triticum aestivum L.), which originated from hybrids of T. turgidum L. with Aegilops tauschii Cosson, provides a model to address this issue. Our observations of meiosis in pollen mother cells from T. turgidumxAe. tauschii hybrids indicated that first division restitution, which exhibited prolonged cell division during meiosis I, was responsible for unreduced gamete formation. A major quantitative trait locus (QTL) for this trait, named QTug.sau-3B, was detected on chromosome 3B in two T. turgidumxAe. tauschii haploid populations. This QTL is situated between markers Xgwm285 and Xcfp1012 and covered a genetic distance of 1 cM in one population. QTug.sau-3B is a haploid-dependent QTL because it was not detected in doubled haploid populations. Comparative genome analysis indicated that this QTL was close to Ttam-3B, a collinear homolog of tam in wheat. Although the relationship between QTug.sau-3B and Ttam requires further study, high frequencies of unreduced gametes may be related to reduced expression of Ttam in wheat.
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/16950
专题中国科学院西北高原生物研究所
推荐引用方式
GB/T 7714
Hao, Ming,Luo, Jiangtao,Zeng, Deying,et al. QTug.sau-3B Is a Major Quantitative Trait Locus for Wheat Hexaploidization[J]. G3-GENES GENOMES GENETICS, Hao, M; Luo, JT; Zeng, DY; Zhang, L; Ning, SZ; Yuan, ZW; Yan, ZH; Zhang, HG; Zheng, YL; Feuillet, C; Choulet, F; Yen, Y; Zhang, LQ; Liu, DC.QTug.sau-3B Is a Major Quantitative Trait Locus for Wheat Hexaploidization,G3-GENES GENOMES GENETICS,2014,4(10):1943,2014.
APA Hao, Ming.,Luo, Jiangtao.,Zeng, Deying.,Zhang, Li.,Ning, Shunzong.,...&Liu, Dengcai.(2014).QTug.sau-3B Is a Major Quantitative Trait Locus for Wheat Hexaploidization.G3-GENES GENOMES GENETICS.
MLA Hao, Ming,et al."QTug.sau-3B Is a Major Quantitative Trait Locus for Wheat Hexaploidization".G3-GENES GENOMES GENETICS (2014).
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