期刊
NATURE PLANTS
卷 5, 期 2, 页码 174-+出版社
NATURE PORTFOLIO
DOI: 10.1038/s41477-018-0349-9
关键词
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资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB27010302]
- Ministry of Science and Technology of China [2013CB945102]
- National Natural Science Foundation of China [31401045, 31221063]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2017140]
- BBSRC [BBS/E/J/000PR9787, BBS/E/J/000PR9773] Funding Source: UKRI
Snapdragon (Antirrhinum majus L.), a member of the Plantaginaceae family, is an important model for plant genetics and molecular studies on plant growth and development, transposon biology and self-incompatibility. Here we report a near-complete genome assembly of A. majus cultivar JI7 (A. majus cv. JI7) comprising 510 Megabases (Mb) of genomic sequence and containing 37,714 annotated protein-coding genes. Scaffolds covering 97.12% of the assembled genome were anchored on eight chromosomes. Comparative and evolutionary analyses revealed that a whole-genome duplication event occurred in the Plantaginaceae around 46-49 million years ago (Ma). We also uncovered the genetic architectures associated with complex traits such as flower asymmetry and self-incompatibility, identifying a unique duplication of TCP family genes dated to around 46-49 Ma and reconstructing a near-complete psi S-locus of roughly 2 Mb. The genome sequence obtained in this study not only provides a representative genome sequenced from the Plantaginaceae but also brings the popular plant model system of Antirrhinum into the genomic age.
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