A major QTL associated with preharvest sprouting in rapeseed (Brassica napus L.)

被引:12
作者
Feng, Faqiang [1 ]
Liu, Pingwu [1 ]
Hong, Dengfeng [1 ]
Yang, Guangsheng [1 ]
机构
[1] Huazhong Agr Univ, Coll Plant Sci & Technol, Natl Ctr Oil Crop Improvement Wuhan, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China
基金
国家高技术研究发展计划(863计划);
关键词
Brassica napus; Preharvest sprouting (PHS); Quantitative trait loci (QTL); QUANTITATIVE TRAIT LOCI; CONTROLLING SEED DORMANCY; RICE ORYZA-SATIVA; GRAIN DORMANCY; WEEDY RICE; GENETIC-ANALYSIS; CHROMOSOME; 4A; MAPPING QTLS; OILSEED RAPE; INBRED LINES;
D O I
10.1007/s10681-009-9921-8
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Preharvest sprouting (PHS) is one of the most important factors affecting the cereal production worldwide, in regions characterized by rainfall and high humidity during harvest season. It is sometimes a problem in rapeseed (Brassica napus L.), especially in production of commercial F-1 hybrids. To detect quantitative trait loci (QTL) controlling PHS, a F-2 population consisting of 269 F-2:3 lines was created from the cross between a PHS-tolerant line (117AB) and a PHS-susceptible line (7,605). A linkage map was constructed using 35 Simple Sequence Repeat markers and 242 Amplified Fragment Length Polymorphism markers. PHS was measured as a percentage of sprouted seeds on the mother plant, 7 days after physiological maturity. Five putative QTLs for PHS were detected and located on LG2 (N11) and LG7 (N3), respectively. Phenotypic variance explained by each QTL ranged from 4.11 to 50.78% and the five putative QTLs explained about 75.63% of the total phenotypic variance. A major QTL was identified on LG2 (N11) flanked by P3C4180 and C6C13160, which explained 50.78% of the total phenotypic variance. Meanwhile, we detected four significant epistatic interactions with a total contribution of 17.16% of the total phenotypic variance.
引用
收藏
页码:57 / 68
页数:12
相关论文
共 61 条
[1]  
Alonso-Blanco C, 2003, GENETICS, V164, P711
[2]   RFLP ANALYSIS OF GENOMIC REGIONS ASSOCIATED WITH RESISTANCE TO PREHARVEST SPROUTING IN WHEAT [J].
ANDERSON, JA ;
SORRELLS, ME ;
TANKSLEY, SD .
CROP SCIENCE, 1993, 33 (03) :453-459
[3]   Genetic variability of preharvest sprouting - the South African situation [J].
Barnard, A ;
van Deventer, CS ;
Maartens, H .
EUPHYTICA, 2005, 143 (03) :291-296
[4]   Cloning of DOG1, a quantitative trait locus controlling seed dormancy in Arabidopsis [J].
Bentsink, Leonie ;
Jowett, Jemma ;
Hanhart, Corrie J. ;
Koornneef, Maarten .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (45) :17042-17047
[5]   Seed germination and dormancy [J].
Bewley, JD .
PLANT CELL, 1997, 9 (07) :1055-1066
[6]   Genomic regions affecting seed shattering and seed dormancy in rice [J].
Cai, HW ;
Morishima, H .
THEORETICAL AND APPLIED GENETICS, 2000, 100 (06) :840-846
[7]  
CHANG TT, 1969, BOT BULL ACAD SINICA, V10, P1
[8]   A major QTL controlling seed dormancy and pre-harvest sprouting resistance on chromosome 4A in a Chinese wheat landrace [J].
Chen, Cui-Xia ;
Cai, Shi-Bin ;
Bai, Gui-Hua .
MOLECULAR BREEDING, 2008, 21 (03) :351-358
[9]   Identification of quantitative trait loci associated with pre-harvest sprouting resistance in rice (Oryza sativa L.) [J].
Dong, YJ ;
Tsuzuki, E ;
Kamiunten, H ;
Terao, H ;
Lin, DZ ;
Matsuo, M ;
Zheng, YF .
FIELD CROPS RESEARCH, 2003, 81 (2-3) :133-139
[10]  
Doyle J. J., 1987, PHYTOCHEM B, V19, P11