文献类型： 外文期刊

作者： Zheng, H. J. ¹ ; Wu, A. Z. ¹ ; Zheng, C. C. ³ ; Wang, Y. F. ² ; Cai, R. ¹ ; Shen, X. F. ² ; Xu, R. R. ³ ; Liu, P. ³ ; Kong, ¹ ;

作者机构： 1.Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 201101, Peoples R China

2.Shanghai Acad Agr Sci, Crop Breeding & Cultivat Res Inst, Shanghai 201106, Peoples R China

3.Shandong Agr Univ, Key Lab Crop Biol Shandong Prov, Tai An 271018, Shandong, Peoples R China

关键词： Zea mays

期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）

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收录情况： SCI

摘要： A maize genetic linkage map derived from 115 simple sequence repeat (SSR) markers was constructed from an F population. The F was generated from a cross between a stay-green inbred line (Q319) and a normal inbred line (Mo17). The map resolved 10 linkage groups and spanned 1431.0 cM in length with an average genetic distance of 12.44 cM between two neighbouring loci. A total of 14 quantitative trait loci (QTL) were detected for stay-green traits at different postflowering time intervals and identified by composite interval mapping. The respective QTL contribution to phenotypic variance ranged from 5.40% to 11.49%, with trait synergistic action from Q319. Moreover, maize stay-green traits were closely correlated to grain yield. Additional QTL analyses indicated that multiple intervals of stay-green QTL overlapped with yield QTL.