Identification of genomic region associated with rice weevil resistance in sorghum [Sorghum bicolor (L.) Moench]

文献类型: 外文期刊

第一作者: Zhai, Guowei

作者: Zhai, Guowei;Wang, Hua;Li, Sujuan;Liu, Heqing;Shao, Jianfeng;Tao, Yuezhi;Zou, Guihua

作者机构:

关键词: Quantitative trait loci;Rice weevil resistance;Sorghum

期刊名称:JOURNAL OF STORED PRODUCTS RESEARCH ( 影响因子:2.643; 五年影响因子:2.829 )

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收录情况: SCI

摘要: The rice weevil Sitophilus oryzae (L.) is an important pest of stored sorghum (Sorghum bicolor L. Moench). Quantitative trait loci (QTL) associated with rice weevil resistance was analyzed using a F-10 recombinant inbred line (RIL) population derived from the cross 654 (susceptible) x LTR108 (resistant). Grain weight losses (GWL), flour production (FP), and percentage kernels damaged (PKD) were evaluated across two trails. A total of 21 QTLs for GWL, FP, and PKD were identified. The phenotypic variation explained by individual QTL varied from 4.14% to 15.51%. Both parents contributed resistance alleles. Several main effect QTLs affecting GWL, FP, and PKD were mapped to the same regions on chromosome 2. The identification of genomic regions associated with rice weevil resistance will be useful to understand the resistance mechanism and improve rice weevil resistance of sorghum by marker-aided approaches. (C) 2016 Elsevier Ltd. All rights reserved.

分类号: TS2

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