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genome architecture and tetrasomic inheritance of autotetraploid potato

Molecular Plant 2022年第7期15卷 1211-1226页

作者： Zhigui Bao Canhui Li Guangcun Li Pei Wang Zhen Peng Lin Cheng Hongbo Li Zhiyang Zhang Yuying Li Wu Huang Mingwang Ye Daofeng Dong Zhukuan Cheng Peter VanderZaag Evert Jacobsen Christian W.B.Bachem Suomeng Dong Chunzhi Zhang Sanwen Huang Qian Zhou Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureGenome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China Key Laboratory for potato Biology of Yunnan Province The CAAS-YNNU-YINMORE Joint Academy of Potato ScienceYunnan Normal UniversityKunming 650500China Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Tuber and Root CropMinistry of Agriculture and Rural AffairsBeijing100081.China Plant Breeding Wageningen University and ResearchDroevendaalsesteeg 16708 PB Wageningenthe Netherlands Vegetable Research Institute Shandong Academy of Agricultural SciencesJinan 250100China State Key Lab of Plant Genomics Institute of Genetics and Developmental BiologyInnovation Academy for Seed DesignChinese Academy of SciencesBeijing 100101China Sunrise potato Storage Ltd. AllistonON L9R1V3Canada Department of Plant Pathology and Key Laboratory of Plant Immunity Nanjing Agricultural UniversityNanjing 210095China Peng Cheng Laboratory Shenzhen 518055China

potato(Solanum tuberosum)is the most consumed non-cereal food *** commercial potato cultivars are autotetraploids with highly heterozygous genomes,severely hampering genetic analyses and *** leveraging the state-of-the-art sequencing technologies and polyploid graph binning,we achieved a chromosome-scale,haplotype-resolved genome assembly of a cultivated potato,Cooperation-88(C88).lntra-haplotype comparative analyses revealed extensive sequence and expression differences in this tetraploid *** identified haplotype-specific pericentromeres on chromosomes,suggesting a distinct evolutionary trajectory of potato homologous ***,we detected double reduction events that are unevenly distributed on haplotypes in 1021 of 1034 selfing progeny,a feature of autopolyploid *** distinguishing maternal and paternal haplotype sets in C88,we simulated the origin of heterosis in cultivated tetraploid with a survey of 3110 tetra-allelic loci with deleterious mutations,which were masked in the heterozygous condition bytwo *** study provides insights into the genomic architecture of autopolyploids and will guide their breeding.

关键词： potato genome polyploid genome haplotype-resolved assembly haplotype diversity potato centromere

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