The pineapple reference genome: Telomere-to-telomere assembly, manually curated annotation, and comparative analysis
文献类型： 外文期刊
作者： Feng, Junting 1 ; Zhang, Wei 1 ; Chen, Chengjie 1 ; Liang, Yinlong 1 ; Li, Tangxiu 4 ; Wu, Ya 1 ; Liu, Hui 3 ; Wu, Jing 1 ; Lin, Wenqiu 6 ; Li, Jiawei 1 ; He, Yehua 3 ; He, Junhu 1 ; Luan, Aiping 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Natl Key Lab Trop Crop Breeding, Lab Crop Gene Resources & Germplasm Enhancement So, Haikou 571101, Peoples R China
2.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Natl Key Lab Trop Crop Breeding, Sanya Res Inst, Haikou 572024, Peoples R China
3.South China Agr Univ, Coll Hort, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangdong Lab Lingnan Modern Agr, Guangzhou 510642, Peoples R China
4.Hainan Univ, Nanfan Res Inst, Hainan Key Lab Sustainable Utilizat Trop Bioresour, Trop Agr & Forestry, Sanya 572025, Peoples R China
5.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Peoples R China
6.Chinese Acad Trop Agr Sci, South Subtrop Crop Res Inst, Zhanjiang 524091, Peoples R China
关键词： pineapple; reference genome; MYB transcription factor; genome database
期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：9.3； 五年影响因子：9.3 ）
ISSN： 1672-9072
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Pineapple is the third most crucial tropical fruit worldwide and available in five varieties. Genomes of different pineapple varieties have been released to date; however, none of them are complete, with all exhibiting substantial gaps and representing only two of the five pineapple varieties. This significantly hinders the advancement of pineapple breeding efforts. In this study, we sequenced the genomes of three varieties: a wild pineapple variety, a fiber pineapple variety, and a globally cultivated edible pineapple variety. We constructed the first gap-free reference genome (Ref) for pineapple. By consolidating multiple sources of evidence and manually revising each gene structure annotation, we identified 26,656 protein-coding genes. The BUSCO evaluation indicated a completeness of 99.2%, demonstrating the high quality of the gene structure annotations in this genome. Utilizing these resources, we identified 7,209 structural variations across the three varieties. Approximately 30.8% of pineapple genes were located within +/- 5 kb of structural variations, including 30 genes associated with anthocyanin synthesis. Further analysis and functional experiments demonstrated that the high expression of AcMYB528 aligns with the accumulation of anthocyanins in the leaves, both of which may be affected by a 1.9-kb insertion fragment. In addition, we developed the Ananas Genome Database, which offers data browsing, retrieval, analysis, and download functions. The construction of this database addresses the lack of pineapple genome resource databases. In summary, we acquired a seamless pineapple reference genome with high-quality gene structure annotations, providing a solid foundation for pineapple genomics and a valuable reference for pineapple breeding. A telomere-to-telomere genome assembly for pineapple integrating germplasm collections, phenotyping, sequencing, and gene structural annotations with manual inspections are provided in the Ananas Genome Database and enabled the identification of high-confidence structural variants and a regulatory gene for red leaves.image
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