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| 1 | Characterization of interspecific hybrids and backcross progenies from a cross between Oryza minuta and Oryza sativa显示文摘Oryza minuta, a tetraploid wild relative of cultivated rice, is an important source for the genetic improvement. Interspecific hybrids were obtained from the cross of O. sativa L. (IR24) and O. minuta (Acc. No. 101133) with 5.58% crossability, which ranged from 0.11% to 1.62% in the backcross generations. The chromosome numbers of the backcross progenies were 24 to 48. Seven yield-related traits of the parents, hybrid F1, and backcross progenies were evaluated. Simple sequence repeat markers analysis showed that the polymorphism ratio of SSR bands between IR24 and Acc. No. 101133 was 93.2%. The average donor segment number, length, donor genome size, and percentage of donor genome of 92 BC3F1 plants (2n=24) were 24.1, 17.8 cM, 438.4 cM and 26.2%, respectively. They were complex variation and uneven among the chromosomes. These introgression lines could be used to identify the favorable genes of O. minuta and provide a new platform for the genetic improvement of cultivated rice. | GUO SiBin, QIN FaLan, ZHANG DuanPin & LIN XingHua· National Key Laboratory of Crop Genetic Improvement, National Center of Crop Molecular Breeding, Huazhong Agricultural University, Wuhan 430070, China | 2009 | Science China(Life Sciences)2009，52，12： | 9 |
| 2 | Fine Mapping of Xa2, a Bacterial Blight Resistance Gene in Rice显示文摘 | Qi He Dongbo Li Yongsheng Zhu Mingpu Tan Duanpin Zhang Xinghua Lin | 2006 | Molecular Breeding2006，，1： | 1 |
| 3 | Identification and fine mapping of the new bacterial blight resistance gene, Xa31(t) , in rice显示文摘 | Chuntai Wang Guoshong Wen Xinghua Lin Xuequn Liu Duanpin Zhang | 2009 | European Journal of Plant Pathology2009，，2： | 1 |
| 4 | Mapping of a gene for photoperiod-sensitive genic male sterility in Nongken 58s on chromosome 5 of rice显示文摘A photoperiod-sensitive genic male sterile(PGMS)rice was found in 1973 as a sponta-neous mutant of Nongken 58,a japonica vari-ety.Pollen fertility of Nongken 58s(N58s)iscompletely sterile when grown under long-dayconditions,whereas fertile under short-dayconditions.This PGMS was found to be con-trolled by one or two recessive gene(s),ofwhich one gene(pms)was linked to a markergene(d-1)on chromosome 5.In order to identify a more precise | LIN Xinghua,YU Gongxin,ZHANG Duanpin,XIE Yuefeng,QIN Falan,State key laboratory in genetic improve ment of crops ,Huahong,Agri Univ,Wuhan 430070,China | 1996 | Chinese Rice Research Newsletter1996，4，3： | 0 |
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