Fine Mapping of qPAA8,a Gene Controlling Panicle Apical Development in Rice

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	Fine Mapping of qPAA8,a Gene Controlling Panicle Apical Development in Rice
	Cheng Zhijun 1; Mao Bigang 1; Gao Suwei 1; Zhang Ling 1; Wang Jiulin 1; Lei Cailin 1; Zhang Xin 2; Wu Fuqing 1; Guo Xiuping 1; Wan Jianmin 1
刊名	Journal of Integrative Plant Biology
	2011
卷号	53 期号:9 页码:710-718
关键词	Rice Inflorescences Phenotypes Political systems Breeds (animals) Accounting Quantitative trait loci
ISSN号	1672-9072
英文摘要	In rice,one detrimental factor influencing single panicle yield is the frequent occurrence of panicle apical abortion(PAA)under unfavorable climatic conditions.Until now,no detailed genetic information has been available to avoid PAA in rice breeding.Here,we show that the occurrence of PAA is associated with the accumulation of excess hydrogen peroxide.Quantitative trait loci(QTLs)mapping for PAA in an F2 population derived from the cross of L-05261(PAA line)譏RAT129(non-PAA variety)identified seven QTLs over a logarithm of the odd(LOD)threshold of 2.5,explaining approximately 50.1%of phenotypic variance for PAA in total.Five of the QTLs with an increased effect from L-05261,were designated as qPAA3-1,qPAA3-2,qPAA4,qPAA5 and qPAA8,and accounted for 6.8%,5.9%,4.2%,13.0%and 12.2% of phenotypic variance,respectively.We found that the PAA in the early heading plants was mainly controlled by qPAA8.Subsequently,using the sub-populations specific for qPAA8 based on markerassisted selection,we further narrowed qPAA8 to a 37.6-kb interval delimited by markers RM22475 and 8-In112.These results are beneficial for PAA gene clone.
学科主题	生物工程学(生物技术)
语种	英语
内容类型	期刊论文
源URL	[http://ir.nais.net.cn/handle/2HMLN22E/131249]
专题	作物科学研究所
作者单位	1.Institute of Crop Science,Chinese Academy of Agriculture Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081; 2.Chinese Academy of Agriculture Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement,Institute of Crop Science, Beijing, 100081
推荐引用方式 GB/T 7714	Cheng Zhijun,Mao Bigang,Gao Suwei,et al. Fine Mapping of qPAA8,a Gene Controlling Panicle Apical Development in Rice[J]. Journal of Integrative Plant Biology,2011,53(9):710-718.
APA	Cheng Zhijun.,Mao Bigang.,Gao Suwei.,Zhang Ling.,Wang Jiulin.,...&Wan Jianmin.(2011).Fine Mapping of qPAA8,a Gene Controlling Panicle Apical Development in Rice.Journal of Integrative Plant Biology,53(9),710-718.
MLA	Cheng Zhijun,et al."Fine Mapping of qPAA8,a Gene Controlling Panicle Apical Development in Rice".Journal of Integrative Plant Biology 53.9(2011):710-718.