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Diversity of Growth Habits and Their Association with VRN Allele of 81 American Wheat Lines

文献类型: 外文期刊

作者: Ji Gui-su 1 ; Bai Gui-hua 2 ; Zhang Qing-jiang 1 ;

作者机构: 1.Hebei Acad Agr & Forestry Sci, Natl Millet Crops Improvement Ctr, Millet Crops Inst, Shijiazhuang 050031, Peoples R China

2.Kansas State Univ, USDA ARS, Plant Sci & Entomol Res Unit, Manhattan, KS 66503 USA

关键词: wheat;growth habit;identification;VRN allele;diversity

期刊名称:AGRICULTURAL SCIENCES IN CHINA ( 影响因子:0.82; 五年影响因子:0.997 )

ISSN: 1671-2927

年卷期: 2010 年 9 卷 12 期

页码:

收录情况: SCI

摘要: Eighty-one wheat accessions including 50 southern regional performance nursery (SRPN) lines and 31 northern regional performance nursery (NRPN) lines from the United States were tested to evaluate the growth habit by chilling treatments and to estimate the VRN allele variation with 19 pairs of published VRN primers Two spring wheat accessions and 44 semi-spring wheat accessions were confirmed based on their chilling days' requirement and polymorphism was found at VRN loci The Vrn-A1 allele had the highest frequency in the RPN accessions and VA1-CAPs markers identified growth habit of RPN lines No polymorphism was found at the VRN3 loci and some polymorphism at the region of promoter and the first intron of VRN1 was not always consistent to growth habit in the wheat RPN accessions The existence of variation in VRN alleles suggested that singly using the dominant Vrn allele is possible to extend the diversity of wheat accessions and improve their adaption to different environments in autumn-sowing region This information will be useful for the cultivars exploitation and wheat breeding program

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