Haplotype-Resolved Genome Assemblies of Two Oryza longistaminata Accessions: A Resource for Dissecting Beneficial Traits

doi:10.1016/j.rsci.2026.04.008

Rice Science ›› 2026, Vol. 33 ›› Issue (5): 579-583.DOI: 10.1016/j.rsci.2026.04.008

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Haplotype-Resolved Genome Assemblies of Two Oryza longistaminata Accessions: A Resource for Dissecting Beneficial Traits

Wang Tianyi¹^,^#, Yu Xiaoman²^,^#, Xu Qiang³^,^#, Shi Shaomin¹, Chen Xueke¹, Wu Weihong³, Wang Zhangqiang³, Chen Jingguang¹(), Guo Longbiao²(), Ma Jie¹()

¹ School of Agriculture and Biotechnology, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China
² State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China
³ State Key Laboratory of Genome and Multi-omics Technologies, Shenzhen Branch / Guangdong Laboratory for Lingnan Modern Agriculture / Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs / Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China

Received:2026-03-19 Accepted:2026-04-01 Online:2026-09-28 Published:2026-09-30
Contact: Ma Jie (majie26@mail.sysu.edu.cn); Guo Longbiao (guolongbiao@caas.cn); Chen Jingguang (chenjg28@mail.sysu.edu.cn)
About author:^#These authors contributed equally to this work

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Abstract

Wang Tianyi, Yu Xiaoman, Xu Qiang, Shi Shaomin, Chen Xueke, Wu Weihong, Wang Zhangqiang, Chen Jingguang, Guo Longbiao, Ma Jie. Haplotype-Resolved Genome Assemblies of Two Oryza longistaminata Accessions: A Resource for Dissecting Beneficial Traits[J]. Rice Science, 2026, 33(5): 579-583.

Figures/Tables 1

Fig. 1. Genomic features, synteny, and evolutionary analyses of Oryza longistaminata telomere-to-telomere (T2T) genomes. A and B, Landscape of T2T genomes of two O. longistaminata accessions OL01 (A) and OL02 (B). From outer to inner circles: gene density, TIR (terminal inverted repeat) density, LTR (long terminal repeat) density, and GC content. chr, Chromosome. C, Synteny analysis of six O. longistaminata assemblies (OL01-primary, OL01-hap1, OL01-hap2, OL02-primary, OL02-hap1 and OL02-hap2) and a public reference (OL). Comparative genomic alignment of the assembled genomes against the reference genome highlighting regions of conserved synteny and structural variation. D, Gene Ontology enrichment analysis of ‘molecular function’ terms for genes located within highly divergent regions. E, Gene family contraction and expansion analysis of OL01 and OL02 haplotype-resolved genomes compared with African cultivated rice (Oryza glaberrima).

References 27

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Haplotype-Resolved Genome Assemblies of Two Oryza longistaminata Accessions: A Resource for Dissecting Beneficial Traits

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