Analysis of QTLs for seed low temperature germinability and anoxia germinability in rice (Oryza sativa L.)
文献类型: 外文期刊
第一作者: Jiang, L
作者: Jiang, L;Liu, SJ;Hou, MY;Tang, JY;Chen, LM;Zhai, HQ;Wan, JM
作者机构:
关键词: anoxic germinability;low temperature germinability;QTL;rice;SSR
期刊名称:FIELD CROPS RESEARCH ( 影响因子:5.224; 五年影响因子:6.19 )
ISSN: 0378-4290
年卷期: 2006 年 98 卷 1 期
页码:
收录情况: SCI
摘要: Direct seeding instead of transplanting for rice (Oryza sativa L.) has increasingly been used in northern and eastern China because of labor and cost saving. However, poor germinability is still one of the major problems faced in the adoption of direct seeding under low temperature (low temperature germinability: LTG) and anoxia (anoxia germinability: AG) condition. To gain an understanding of the genetic control of seed germinability under these unfavourable conditions, two rice lines, USSR5 (japonica type) and N22 (indica type) and F-2 individuals derived from the cross USSR5 x N22 were tested for LTG and AG. USSR5 and N22 differ significantly for both LTG and AG. The LTG of the F-2 individuals ranged from 0 to 100% after a 10 days incubation. AG ranged from 0.0 to 4.0 cm shoot length. Based on segregation in the F-2 population, a linkage map was constructed using 121 SSR markers. The map covered 1821.5 cM, with a mean inter-marker distance of 16.7 cM. Eleven putative QTLs for LTG were detected, one on each of chromosomes 3-5, 7, 9-11, and four on chromosome 5. The USSR5 alleles in all these QTLs acted to increase LTG. Two QTLs for AG were located on chromosomes 5 and 11, respectively, at both of which the USSR5 alleles acted to increase AG. We propose that USSR5 could make a major contribution to improving LTG and AG in rice breeding programs. (c) 2006 Elsevier B.V. All rights reserved.
分类号:
- 相关文献
作者其他论文 更多>>
-
QTL analysis for rice grain length and fine mapping of an identified QTL with stable and major effects
作者:Wan, XY;Wan, JM;Jiang, L;Wang, JK;Zhai, HQ;Weng, JF;Wang, HL;Lei, CL;Wang, JL;Zhang, X;Cheng, ZJ;Guo, XP
关键词:
-
EUI1, encoding a putative cytochrome P450 monooxygenase, regulates internode elongation by modulating gibberellin responses in rice
作者:Luo, AD;Qian, Q;Yin, HF;Liu, XQ;Yin, CX;Lan, Y;Tang, JY;Tang, ZS;Cao, SY;Wang, XJ;Xia, K;Fu, XD;Luo, D;Chu, CC
关键词:cytochrome P450 monooxygenase;elongated;uppermost internode 1;gibberellin;internode elongation;rice
-
Site-specific DNA excision in transgenic rice with a cell-permeable Cre recombinase
作者:Cao, MX;Huang, JQ;Yao, QH;Liu, SJ;Wang, CL;Wei, ZM
关键词:NITS;cell-permeable Cre recombinase;marker-free;transgenic rice plants;biosafety
-
Identification of QTLs underlying resistance to a virulent strain of Xanthomonas oryzae pv. oryzae in rice cultivar DV85
作者:Wang, CM;Su, CC;Zhai, HQ;Wan, JM
关键词:bacterial blight;Xanthomonas oryzae pv. oryzae (Xoo) quantitative trait loci (QTLs);resistance gene;mapping population;rice (Oryza sativa L.)
-
Accumulation of gamma-aminobutyric acid in giant-embryo rice grain in relation to glutamate decarboxylase activity and its gene expression during water soaking
作者:Liu, LL;Zhai, HQ;Wan, JM
关键词:
-
Characterization of the rice floral organ number mutant fon3
作者:Jiang, L;Qian, Q;Mao, L;Zhou, QY;Zhai, WX
关键词:development;floral organ number;fon3 mutant;rice (Oryza sativa L.)
-
A new locus for resistance to brown planthopper identified in the indica rice variety DV85
作者:Su, CC;Wan, J;Zhai, HQ;Wang, CM;Sun, LH;Yasui, H;Yoshimura, A
关键词:Oryza sativa;Nilaparvata lugens;brown planthopper resistance;quantitative trait locus analysis;recombinant inbred lines