Advanced Backcross QTL Analysis for the Whole Plant Growth Duration Salt Tolerance in Rice (Oryza sativa L.)

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	Advanced Backcross QTL Analysis for the Whole Plant Growth Duration Salt Tolerance in Rice (Oryza sativa L.)
	Chai Lu 1; Zhang Jian 1; Pan Xiaobiao 2; Zhang Fan 1; Zheng Tianqing 1; Zhao Xiuqing 1; Wang Wensheng 1; Ali Jauhar 3; Xu Jianlong 1; Li Zhikang 1
刊名	Journal of Integrative Agriculture
	2014
卷号	13 期号:8 页码:1609-1620
关键词	rice whole plant growth duration salt tolerance quantitative trait loci (QTLs) epistasis
ISSN号	2095-3119
英文摘要	Salinity is a major factor limiting rice yield in coastal areas of Asia. To facilitate breeding salt tolerant rice varieties, the whole-plant growth duration salt tolerance (ST) was genetically dissected by phenotyping two sets of BC_2F_5 introgression lines (ILs) for four yield traits under severe natural salt stress and non-stress ifled conditions using SSR markers and the methods of advanced backcross QTL (AB-QTL) analysis and selective introgression. Many QTLs affecting four yield traits under salt stress and non-stress conditions were identiifed, most (>90%) of which were clustered in 13 genomic regions of the rice genome and involved in complex epistasis. Most QTLs affecting yield traits were differentially expressed under salt stress and non-stress conditions. Our results suggested that genetics complementarily provides an adequate explanation for the hidden genetic diversity for ST observed in both IL populations. Some promising Huanghuazhan (HHZ) ILs with favorable donor alleles at multiple QTLs and signiifcantly improved yield traits under salt stress and non-stress conditions were identiifed, providing excellent materials and relevant genetic information for improving rice ST by marker-assisted selection (MAS) or genome selection.
学科主题	农业基础科学 ; 农作物
语种	中文
内容类型	期刊论文
源URL	[http://ir.nais.net.cn/handle/2HMLN22E/131147]
专题	作物科学研究所
作者单位	1.Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081; 2.Crop Research Institute, Taizhou Academy of Agricultural Sciences of Zhejiang Province, Linhai, 317000; 3.International Rice Research Institute, DAPO 777, The Philippines, Metro Malina
推荐引用方式 GB/T 7714	Chai Lu,Zhang Jian,Pan Xiaobiao,et al. Advanced Backcross QTL Analysis for the Whole Plant Growth Duration Salt Tolerance in Rice (Oryza sativa L.)[J]. Journal of Integrative Agriculture,2014,13(8):1609-1620.
APA	Chai Lu.,Zhang Jian.,Pan Xiaobiao.,Zhang Fan.,Zheng Tianqing.,...&Li Zhikang.(2014).Advanced Backcross QTL Analysis for the Whole Plant Growth Duration Salt Tolerance in Rice (Oryza sativa L.).Journal of Integrative Agriculture,13(8),1609-1620.
MLA	Chai Lu,et al."Advanced Backcross QTL Analysis for the Whole Plant Growth Duration Salt Tolerance in Rice (Oryza sativa L.)".Journal of Integrative Agriculture 13.8(2014):1609-1620.