Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars
Abstract The sunflower (Helianthus annuus L.), belonging to the Asteraceae family, is the world’s fourth most important oil crop. Sunflower cultivars are categorized into oilseed and confectionery types. Here, we present chromosome-level genome assemblies of two Chinese sunflower cultivars-oilseed a...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Data |
| Online Access: | https://doi.org/10.1038/s41597-024-04097-z |
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| author | Liuxi Yi Haizhu Bao Yang Wu Yingnan Mu Chao Du Jingwen Peng Xuechun Yan Yongsheng Chen Haifeng Yu |
| author_facet | Liuxi Yi Haizhu Bao Yang Wu Yingnan Mu Chao Du Jingwen Peng Xuechun Yan Yongsheng Chen Haifeng Yu |
| author_sort | Liuxi Yi |
| collection | DOAJ |
| description | Abstract The sunflower (Helianthus annuus L.), belonging to the Asteraceae family, is the world’s fourth most important oil crop. Sunflower cultivars are categorized into oilseed and confectionery types. Here, we present chromosome-level genome assemblies of two Chinese sunflower cultivars-oilseed and confectionery-using PacBio HiFi and Hi-C sequencing. The oilseed cultivar, OXS, has a genome assembly spanning 3.03 Gb with 99.58% of sequences anchored to 17 chromosomes and a contig N50 length of 154.78 Mb. The first published confectionery cultivar genome, YDS, mirrors this closely with a 3.02 Gb assembly, contig N50 length of 153.87 Mb and 99.40% of sequences mapped similarly. Gene completeness reached 98.2% for OXS and 98.4% for YDS, with LTR Assembly Index scores of 24.73 and 25.85, respectively. Comparative genomics identified rapidly evolving gene families linked to synthesis, growth, and stress defense. Additionally, we found high collinearity between the YDS and OXS genomes, despite three significant inversions, and detected 15,056 large deletions and insertions. These findings lay a robust foundation for advanced genomic research and breeding innovations in sunflowers. |
| format | Article |
| id | doaj-art-abd0f03c958a4c6ca2a9bdaf944fc318 |
| institution | Kabale University |
| issn | 2052-4463 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Data |
| spelling | doaj-art-abd0f03c958a4c6ca2a9bdaf944fc3182025-01-12T12:07:41ZengNature PortfolioScientific Data2052-44632025-01-011211910.1038/s41597-024-04097-zChromosome-level genome assemblies of sunflower oilseed and confectionery cultivarsLiuxi Yi0Haizhu Bao1Yang Wu2Yingnan Mu3Chao Du4Jingwen Peng5Xuechun Yan6Yongsheng Chen7Haifeng Yu8Agricultural college, Inner Mongolia Agricultural UniversityAgricultural college, Inner Mongolia Agricultural UniversityAgricultural college, Inner Mongolia Agricultural UniversityInstitute of Crop Science, Inner Mongolia Academy of Agricultural & Animal Husbandry SciencesBayan Nur Institute of Agriculture and Animal Husbandry ScienceBayan Nur Institute of Agriculture and Animal Husbandry ScienceBayan Nur Institute of Agriculture and Animal Husbandry ScienceAgricultural college, Inner Mongolia Agricultural UniversityInstitute of Crop Science, Inner Mongolia Academy of Agricultural & Animal Husbandry SciencesAbstract The sunflower (Helianthus annuus L.), belonging to the Asteraceae family, is the world’s fourth most important oil crop. Sunflower cultivars are categorized into oilseed and confectionery types. Here, we present chromosome-level genome assemblies of two Chinese sunflower cultivars-oilseed and confectionery-using PacBio HiFi and Hi-C sequencing. The oilseed cultivar, OXS, has a genome assembly spanning 3.03 Gb with 99.58% of sequences anchored to 17 chromosomes and a contig N50 length of 154.78 Mb. The first published confectionery cultivar genome, YDS, mirrors this closely with a 3.02 Gb assembly, contig N50 length of 153.87 Mb and 99.40% of sequences mapped similarly. Gene completeness reached 98.2% for OXS and 98.4% for YDS, with LTR Assembly Index scores of 24.73 and 25.85, respectively. Comparative genomics identified rapidly evolving gene families linked to synthesis, growth, and stress defense. Additionally, we found high collinearity between the YDS and OXS genomes, despite three significant inversions, and detected 15,056 large deletions and insertions. These findings lay a robust foundation for advanced genomic research and breeding innovations in sunflowers.https://doi.org/10.1038/s41597-024-04097-z |
| spellingShingle | Liuxi Yi Haizhu Bao Yang Wu Yingnan Mu Chao Du Jingwen Peng Xuechun Yan Yongsheng Chen Haifeng Yu Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars Scientific Data |
| title | Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars |
| title_full | Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars |
| title_fullStr | Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars |
| title_full_unstemmed | Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars |
| title_short | Chromosome-level genome assemblies of sunflower oilseed and confectionery cultivars |
| title_sort | chromosome level genome assemblies of sunflower oilseed and confectionery cultivars |
| url | https://doi.org/10.1038/s41597-024-04097-z |
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