The HuangZaoSi Maize Genome Provides Insights into Genomic Variation and Improvement History of Maize

查看全文 作　　者：Chunhui [1]Li;Wei [1]Song;Yingfeng [2]Luo;Shenghan [2]Gao;Ruyang [1]Zhang;Zi [1]Shi;Xiaqing [1]Wang;Ronghuan [1]Wang;Fengge [1]Wang;Jidong [1]Wang;Yanxin [1]Zhao;Aiguo [1]Su;Shuai [1]Wang;Xin [3]Li;Meijie [1]Luo;Shuaishuai [1]Wang;Yunxia [1]Zhang;Jianrong [1]Ge;Xinyu [2]Tan;Ye [2]Yuan;Xiaochun [2]Bi;Hang [3]He;Jianbing [4]Yan;Yuandong [1]Wang;Songnian [2,5]Hu;Jiuran [1]Zhao

机构地区：[1]Maize Research Center,Beijing Academy of Agriculture & Forestry Sciences(BAAFS),Beijing Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding,Shuguang Garden Middle Road No.9,Beijing 100097,China;[2]CAS Key Laboratory of Genome Sciences and Information,Beijing Institute of Genomics,Chinese Academy of Sciences,Beijing,China;[3]School of Advanced Agriculture Sciences and School of Life Sciences,State Key Laboratory of Protein and Plant Gene Research,Peking University,Beijing 100871,China;[4]National Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University,Wuhan 430070,China;[5]University of Chinese Academy of Sciences,Beijing,China

出　　处：《Molecular Plant》索引2019年第12卷第3期,共8页

摘　　要：Maize is a globally important crop that was a classic model plant for genetic studies. Here, we report a 2.2 Gb draft genome sequence of an elite maize line, HuangZaoSi (HZS). Hybrids bred from HZS-improved lines (HILs) are planted in more than 60% of maize fields in China. Proteome clustering of six completed sequeneed maize genomes show that 638 proteins fall into 264 HZS-specific gene families with the majority of contributions from tandem duplication events. Resequencing and comparative analysis of 40 HZSrelated lines reveals the breeding history of HILs. More than 60% of identified selective sweeps were clustered in identity.by.descent conserved regions, and yield-related genes/QTLs were enriched in HZS characteristic selected regions. Furthermore, we dem on strated that HZS-specific family genes were not uniformly distributed in the genome but enriched in improvement/function.related genomic regions. This study provides an important and novel resource for maize genome research and expands our knowledge on the breadth of genomic variation and improvement history of maize. 关键词：HZs comparative GENOMIC ANALYSIS TANDEM DUPLICATION PEDIGREE ANALYSIS identity-by-descent

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The HuangZaoSi Maize Genome Provides Insights into Genomic Variation and Improvement History of Maize

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