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Telomere-to-telomere Genome Assembly of two representative Asian and European pear cultivars

文献类型： 外文期刊

作者： Qi, Yongjie 1 ; Shan, Dai 2 ; Cao, Yufen 3 ; Ma, Na 1 ; Lu, Liqing 1 ; Tian, Luming 3 ; Feng, Zhan 2 ; Ke, Fanjun 4 ; Jian, Jianbo 2 ; Gao, Zhenghui 1 ; Xu, Yiliu 1 ;

作者机构： 1.Anhui Acad Agr Sci, Inst Hort, Key Lab Hort Crop Germplasm Innovat & Utilizat, Coconstruct Minist & Prov, Hefei 230031, Peoples R China

2.BGI Genom, Shenzhen 518083, Peoples R China

3.Chinese Acad Agr Sci CAAS, Xingcheng 125100, Peoples R China

4.Anhui Univ Chinese Med, Hefei 230012, Peoples R China

5.Shantou Univ, Marine Biol Inst, Shantou 515063, Peoples R China

期刊名称：SCIENTIFIC DATA （ 影响因子：6.9； 五年影响因子：8.7 ）

ISSN：

年卷期： 2024 年 11 卷 1 期

页码：

收录情况： SCI

摘要： As the third most important temperate fruit, Pear (Pyrus spp.) exhibits a remarkable genetic diversity and is classified into two mainly categories known as Asian pear and European pear. Although several pear genomes are available, most of the released versions are fragmented and not chromosome-level high-quality. In this study, we report two high-quality genomes for Pyrus bretschneideri Rhed. cv. 'Danshansuli' (DS) and Pyrus communis L. cv. 'Conference' (KFL), which represent the predominant Asian and European cultivars, respectively, with nearly telomere-to-telomere (T2T) gap-free level. The finally assembled genome sizes for DS and KFL were 510.98 Mb and 510.71 Mb, respectively, with Contig N50 of 29.47 Mb and 30.47 Mb, where each chromosome was represented by a single contig. The DS and KFL genomes yielded a total of 46,394 and 44,702 protein-coding genes, respectively. Among these genes, the functional annotation accounted for 96.47% and 96.46% in the DS and KFL genomes. The two novels nearly T2T genomic information offers an invaluable resource for comparative genomics, genetic diversity analysis, molecular breeding strategies, and functional exploration.

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