Analysis of QTLs for yield-related traits in Yuanjiang common wild rice (Oryza rufipogon Griff.)

被引：64

作者：

Fu, Qiang ^{[1
,2
]}

Zhang, Peijiang ^{[2
]}

Tan, Lubin ^{[1
]}

Zhu, Zuofeng ^{[1
]}

Ma, Dan ^{[1
]}

Fu, Yongcai ^{[1
]}

Zhan, Xinchun ^{[2
]}

Cai, Hongwei ^{[1
]}

Sun, Chuanqing ^{[1
]}

机构：

[1] China Agr Univ, Key Lab Crop Genet Improvement & Genome,Dept Plan, Beijing Key Lab Crop Genet Improvement,Lab Crop H, State Key Lab Plant Physiol & Biochem,Natl Ctr Ev, Beijing 100193, Peoples R China

[2] Anhui Acad Agr Sci, Inst Rice Res, Hefei 230031, Peoples R China

来源：

JOURNAL OF GENETICS AND GENOMICS | 2010年 / 37卷 / 02期

关键词：

common wild rice; yield-related traits; advanced backcross population; QTL; ADVANCED BACKCROSS POPULATION; SATIVA VARIETY IR64; CULTIVATED RICE; MICROSATELLITE MARKERS; INTROGRESSION LINES; O-RUFIPOGON; LOCI; IDENTIFICATION; L; GRAIN;

D O I：

10.1016/S1673-8527(09)60033-3

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Using an accession of common wild rice (Oryza rujipogon Griff.) collected from Yuanjiang County, Yunnan Province, China, as the donor and an elite cultivar 93-11, widely used in two-line indica hybrid rice production in China, as the recurrent parent, ail advanced backcross populations were developed. Through genotyping of 187 SSR markers and investigation of six yield-related traits of two generations (BC(4)F(2) and BC(4)F(4)), a total of 26 QTLs were detected by employing single point analysis and interval mapping in both generations. Of the 26 QTLs, the alleles of 10 (38.5%) QTLs originating from O. rufipogon had shown a beneficial effect for yield-related traits in the 93-11 genetic background. In addition, five QTLs controlling yield and its components were newly identified, indicating that there are potentially novel alleles in Yuanjiang common wild rice. Three regions underling significant QTLs for several yield-related traits were detected on chromosome 1, 7 and 12. The QTL clusters were founded and corresponding agronomic traits of those QTLs showed highly significant correlation, suggesting the pleiotropism or tight linkage. Fine-mapping and cloning of these yield-related QTLs from wild rice would be helpful to elucidating molecular mechanism of rice domestication and rice breeding in the future.

引用

页码：147 / 157

页数：11

共 47 条

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