Chromosome-level genome assembly of the diploid oat species Avena longiglumis

Qing Liu; Gui Xiong; Ziwei Wang; Yongxing Wu; Tieyao Tu; Trude Schwarzacher; John Seymour Heslop-Harrison

doi:10.1038/s41597-024-03248-6

Scientific Data (Apr 2024)

Chromosome-level genome assembly of the diploid oat species Avena longiglumis

Qing Liu,
Gui Xiong,
Ziwei Wang,
Yongxing Wu,
Tieyao Tu,
Trude Schwarzacher,
John Seymour Heslop-Harrison

Affiliations

Qing Liu: State Key Laboratory of Plant Diversity and Specialty Crops / Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences
Gui Xiong: State Key Laboratory of Plant Diversity and Specialty Crops / Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences
Ziwei Wang: School of Biology and Agriculture, Shaoguan University
Yongxing Wu: College of Agriculture, South China Agricultural University
Tieyao Tu: State Key Laboratory of Plant Diversity and Specialty Crops / Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences
Trude Schwarzacher: State Key Laboratory of Plant Diversity and Specialty Crops / Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences
John Seymour Heslop-Harrison: State Key Laboratory of Plant Diversity and Specialty Crops / Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences

DOI: https://doi.org/10.1038/s41597-024-03248-6
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 9

Abstract

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Abstract Diploid wild oat Avena longiglumis has nutritional and adaptive traits which are valuable for common oat (A. sativa) breeding. The combination of Illumina, Nanopore and Hi-C data allowed us to assemble a high-quality chromosome-level genome of A. longiglumis (ALO), evidenced by contig N50 of 12.68 Mb with 99% BUSCO completeness for the assembly size of 3,960.97 Mb. A total of 40,845 protein-coding genes were annotated. The assembled genome was composed of 87.04% repetitive DNA sequences. Dotplots of the genome assembly (PI657387) with two published ALO genomes were compared to indicate the conservation of gene order and equal expansion of all syntenic blocks among three genome assemblies. Two recent whole-genome duplication events were characterized in genomes of diploid Avena species. These findings provide new knowledge for the genomic features of A. longiglumis, give information about the species diversity, and will accelerate the functional genomics and breeding studies in oat and related cereal crops.

Published in Scientific Data

ISSN: 2052-4463 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/sdata/

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