摘要
快速叶绿素荧光参数可以准确快速地探测植株光能转化利用效率。以404份玉米自交系组成的自然群体为材料,利用5.6×105个覆盖全基因组的SNP标记,对5个叶绿素荧光参数进行全基因组关联分析。在4个大田种植环境下,共检测到41个与快速叶绿素荧光参数显著关联的SNP位点,其中8个SNP位点与ETo/TRo显著关联,6个SNP位点与ABS/CSo显著关联,18个SNP位点与TRo/ABS显著关联,4个SNP位点与ETo/CSo显著关联,5个SNP位点与PIcs显著关联。研究结果对于挖掘玉米叶绿素荧光参数相关基因,揭示光合作用遗传机理和开展分子标记辅助选择具有重要意义。
Fast chlorophyll fluorescence parameters are widely used to characterize the photosynthetic efficiency of plants. In this study, the genome-wide association analysis was used to detect key single-nucleotide polymorphisms （SNPs） associated with fast chlorophyll fluorescence parameters using more than 560 000 SNPs in a maize panel consisting of 404 inbred lines. In four field environments, 41 SNPs were detected to be associated with five fast chlorophyll fluorescence pa-rameters, including ABS/CSo,ETo/CSo, TRo/ABS, ETo/TRo, and Pics. Among these identified SNPs which was 8 , 6 , 18, 4, and 5 SNPs were significantly associated with ETo/TRo, ABS/CSTRo/ABS, ETo/CSo, and Pics respectively. These significant SNPs will help discover genes for chlorophyll fluorescence parameters, better understand the genetic basisof photosynthesis, and assist in developing marker-assisted selection breeding programs in maize.
出处
《江苏农业学报》
CSCD
北大核心
2016年第4期746-751,共6页
Jiangsu Journal of Agricultural Sciences
基金
江苏省自然科学基金项目(BK20141272)
国家自然科学基金项目(31571669
91535106)
江苏省产学研合作前瞻性联合研究项目(BY2016069-09)
江苏省农业科技支撑项目(BE2014353)
江苏省高校优势学科建设项目
关键词
玉米
快速叶绿素荧光参数
关联分析
自交系
SNP标记
maize
fast chlorophyll fluorescence parameters （JIP parameters）
association analysis
inbred line
single-nucleotide polymorphism （ SNP） marker
