PT - JOURNAL ARTICLE AU - Robert Bukowski AU - Xiaosen Guo AU - Yanli Lu AU - Cheng Zou AU - Bing He AU - Zhengqin Rong AU - Bo Wang AU - Dawen Xu AU - Bicheng Yang AU - Chuanxiao Xie AU - Longjiang Fan AU - Shibin Gao AU - Xun Xu AU - Gengyun Zhang AU - Yingrui Li AU - Yinping Jiao AU - John Doebley AU - Jeffrey Ross-Ibarra AU - Vince Buffalo AU - M. Cinta Romay AU - Edward S. Buckler AU - Yunbi Xu AU - Jinsheng Lai AU - Doreen Ware AU - Qi Sun TI - Construction of the third generation <em>Zea mays</em> haplotype map AID - 10.1101/026963 DP - 2016 Jan 01 TA - bioRxiv PG - 026963 4099 - http://biorxiv.org/content/early/2016/09/16/026963.short 4100 - http://biorxiv.org/content/early/2016/09/16/026963.full AB - Background Characterization of genetic variations in maize has been challenging, mainly due to deterioration of collinearity between individual genomes in the species. An international consortium of maize research groups combined resources to develop the maize haplotype version 3 (HapMap 3), built from whole genome sequencing data from 1,218 maize lines, covering pre-domestication and domesticated Zea mays varieties across the world.Results A new computational pipeline was set up to process over 12 trillion bp of sequencing data, and a set of population genetics filters were applied to identify over 83 million variant sites.Conclusions We identified polymorphisms in regions where collinearity is largely preserved in the maize species. However, the fact that the B73 genome used as the reference only represents a fraction of all haplotypes is still an important limiting factor.