Construction of Reference Chromosome-Scale Pseudomolecules for Potato: Integrating the Potato Genome with Genetic and Physical Maps
文献类型: 外文期刊
第一作者: Sharma, Sanjeev Kumar
作者: Sharma, Sanjeev Kumar;McLean, Karen;Waugh, Robbie;Bryan, Glenn J.;Bolser, Daniel;Martin, David Michael Alan;de Boer, Jan;Visser, Richard G. F.;Bachem, Christian W. B.;Sonderkaer, Mads;Amoros, Walter;Munive, Susan;Simon, Reinhard;Bonierbale, Merideth;Carboni, Martin Federico;Feingold, Sergio E.;D'Ambrosio, Juan Martin;de la Cruz, German;Di Genova, Alex;Maass, Alejandro;Di Genova, Alex;Maass, Alejandro;Douches, David S.;Hamilton, John P.;Eguiluz, Maria;Guzman, Frank;Lozano, Roberto;Martinez, Diana;Ponce, Olga;Ramirez, Manuel;Torres, Yerisf;Orjeda, Gisella;Guo, Xiao;Li, Guangcun;Hackett, Christine A.;Li, Ying;Thomson, Susan J.;Zhang, Zhonghua;Huang, Sanwen;Mejia, Nilo;Nagy, Istvan;Milbourne, Dan;Jacobs, Jeanne M. E.;Jacobs, Jeanne M. E.;Veilleux, Richard E.
作者机构:
关键词: Solanaceae;genome anchoring;scaffold orientation;sequence-tagged sites;pseudomolecules;potato;genetic map;physical map
期刊名称:G3-GENES GENOMES GENETICS ( 影响因子:3.154; 五年影响因子:3.369 )
ISSN: 2160-1836
年卷期: 2013 年 3 卷 11 期
页码:
收录情况: SCI
摘要: The genome of potato, a major global food crop, was recently sequenced. The work presented here details the integration of the potato reference genome (DM) with a new sequence-tagged site marker-based linkage map and other physical and genetic maps of potato and the closely related species tomato. Primary anchoring of the DM genome assembly was accomplished by the use of a diploid segregating population, which was genotyped with several types of molecular genetic markers to construct a new similar to 936 cM linkage map comprising 2469 marker loci. In silico anchoring approaches used genetic and physical maps from the diploid potato genotype RH89-039-16 (RH) and tomato. This combined approach has allowed 951 superscaffolds to be ordered into pseudomolecules corresponding to the 12 potato chromosomes. These pseudomolecules represent 674 Mb (similar to 93%) of the 723 Mb genome assembly and 37,482 (similar to 96%) of the 39,031 predicted genes. The superscaffold order and orientation within the pseudomolecules are closely collinear with independently constructed high density linkage maps. Comparisons between marker distribution and physical location reveal regions of greater and lesser recombination, as well as regions exhibiting significant segregation distortion. The work presented here has led to a greatly improved ordering of the potato reference genome superscaffolds into chromosomal pseudomolecules.
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