Combining the high-throughput maize phenotyping and quantitative trait loci analysis to reveal the dynamic genetic architecture of maize plant growth
作者单位：National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural University National Center of Plant Gene Research (Wuhan)Huazhong Agricultural University College of EngineeringHuazhong Agricultural University MOA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze RiverHuazhong Agricultural University
会议名称：《2016年全国植物生物学大会》
会议日期：2016年
关 键 词：maize high-throughput phenotyping dynamic genetic architecture QTL mapping
摘 要：With the increasing demands in crop breeding for novel traits,plant research community faces to quantitatively analyze the structure and function of large numbers of plants. A clear goal of highthroughput phenotyping is to bridge the gap between genomics and phenomics. In this study,we obtained 106 traits from a maize recombinant inbred line population across 16 development stages using the automatic phenotyping *** results showed that the exponential model had better predication ability for biomass accumulation,even in the early growth stage. QTL mapping with high density genetic linkage map was used to uncover the genetic basis of these complex agronomic traits,and have identified 2265 QTLs for all investigated traits. We also conduct the traits-loci network analysis and 3 house-keeping loci were detected in the hub points for 2 traits. These results reveal the dynamic genetic architecture of maize plant growth thus enhance maize ideotype breeding in the near future.