Improvement of Yield and Its Related Traits for Backbone Hybrid Rice Parent Minghui 86 Using Advanced Backcross Breeding Strategies

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	Improvement of Yield and Its Related Traits for Backbone Hybrid Rice Parent Minghui 86 Using Advanced Backcross Breeding Strategies
	Zhang Hongjun 1; Wang Hui 1; Ye Guoyou 2; Qian Yiliang 1; Shi Yingyao 3; Xia Jiafa 4; Li Zefu 4; Zhu Linghua 1; Gao Yongming 1; Li Zhikang 1
刊名	Journal of Integrative Agriculture
	2013
卷号	12 期号:4 页码:561-570
关键词	rice (Qryza sativa L.) quantitative trait locus (QTL) selective introgression population yield
ISSN号	2095-3119
英文摘要	How to overcome yield stagnation is a big challenge to rice breeders. An effective method for quickly developing new cultivars is to further improve an outstanding cultivar. In this study, three advanced backcross populations under yield selection that consist of 123 BC_2F_(2:4) introgression lines (ILs) were developed by crossing Minghui 86 (recurrent parent, RP) with three high-yielding varieties (donors), namely, ZDZ057, Fuhui 838, and Teqing, respectively. The progeny testing allowed the identification of 12 promising ILs that had significantly higher mean grain yields than Minghui 86 in two environments. A total of 55 QTLs that affect grain yield and its related traits were identified, which included 50 QTLs that were detected using the likelihood ratio test based on stepwise regression (RSTEP-LRT) method, and eight grain yield per plant (GY) QTLs were detected using chi-squared (X~2) test. Among these QTLs, five QTLs were simultaneously detected in different populations and 22 QTLs were detected in both environments. The beneficial donor alleles for increased GY and its related traits were identified in 63.6% (35 out of 55) of the QTLs. These promising ILs and QTLs identified will provide the elite breeding materials and genetic information for further improvement of the grain yield for Minghui 86 through pyramiding breeding.
学科主题	农作物
语种	中文
内容类型	期刊论文
源URL	[http://ir.nais.net.cn/handle/2HMLN22E/131299]
专题	作物科学研究所
作者单位	1.Ministry of Agriculture & National Development and Reform Commission/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic Improvement, Beijing, 100081; 2.International Rice Research Institute, Philippines, 7777; 3.College of Agriculture, Anhui Agricultural University, Anhui, 230036; 4.Rice Research Institute, Anhui Academy of Agricultural Sciences, Anhui, 230031
推荐引用方式 GB/T 7714	Zhang Hongjun,Wang Hui,Ye Guoyou,et al. Improvement of Yield and Its Related Traits for Backbone Hybrid Rice Parent Minghui 86 Using Advanced Backcross Breeding Strategies[J]. Journal of Integrative Agriculture,2013,12(4):561-570.
APA	Zhang Hongjun.,Wang Hui.,Ye Guoyou.,Qian Yiliang.,Shi Yingyao.,...&Li Zhikang.(2013).Improvement of Yield and Its Related Traits for Backbone Hybrid Rice Parent Minghui 86 Using Advanced Backcross Breeding Strategies.Journal of Integrative Agriculture,12(4),561-570.
MLA	Zhang Hongjun,et al."Improvement of Yield and Its Related Traits for Backbone Hybrid Rice Parent Minghui 86 Using Advanced Backcross Breeding Strategies".Journal of Integrative Agriculture 12.4(2013):561-570.