Genome structure and evolution of Antirrhinum majus L

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 c...

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Veröffentlicht in:Nature plants 2019-02, Vol.5 (2), p.174-183
Hauptverfasser: Li, Miaomiao, Zhang, Dongfen, Gao, Qiang, Luo, Yingfeng, Zhang, Hui, Ma, Bin, Chen, Chunhai, Whibley, Annabel, Zhang, Yu’e, Cao, Yinghao, Li, Qun, Guo, Han, Li, Junhui, Song, Yanzhai, Zhang, Yue, Copsey, Lucy, Li, Yan, Li, Xiuxiu, Qi, Ming, Wang, Jiawei, Chen, Yan, Wang, Dan, Zhao, Jinyang, Liu, Guocheng, Wu, Bin, Yu, Lili, Xu, Chunyan, Li, Jiang, Zhao, Shancen, Zhang, Yijing, Hu, Songnian, Liang, Chengzhi, Yin, Ye, Coen, Enrico, Xue, Yongbiao
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container_title Nature plants
container_volume 5
creator Li, Miaomiao
Zhang, Dongfen
Gao, Qiang
Luo, Yingfeng
Zhang, Hui
Ma, Bin
Chen, Chunhai
Whibley, Annabel
Zhang, Yu’e
Cao, Yinghao
Li, Qun
Guo, Han
Li, Junhui
Song, Yanzhai
Zhang, Yue
Copsey, Lucy
Li, Yan
Li, Xiuxiu
Qi, Ming
Wang, Jiawei
Chen, Yan
Wang, Dan
Zhao, Jinyang
Liu, Guocheng
Wu, Bin
Yu, Lili
Xu, Chunyan
Li, Jiang
Zhao, Shancen
Zhang, Yijing
Hu, Songnian
Liang, Chengzhi
Yin, Ye
Coen, Enrico
Xue, Yongbiao
description 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 ψS -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. This study reports a near-complete genome of Antirrhinum majus L., provides insights into gene and genome duplication events, and reveals the genetic basis underlying complex traits of snapdragon, such as flower asymmetry and self-incompatibility.
doi_str_mv 10.1038/s41477-018-0349-9
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subjects 45
45/23
631/208/212
631/449
Antirrhinum - genetics
Antirrhinum majus
Asymmetry
Biological Evolution
Biomedical and Life Sciences
Chromosomes
Cultivars
Flowers
Flowers - anatomy & histology
Flowers - genetics
Flowers - physiology
Gene Duplication
Genes
Genetics
Genome, Plant
Genomes
Genomics
Incompatibility
Life Sciences
Molecular Sequence Annotation
Nucleotide sequence
Phylogeny
Plant growth
Plant Proteins - genetics
Plant Sciences
Plantaginaceae
Reproduction (copying)
Self-incompatibility
Self-Incompatibility in Flowering Plants - genetics
title Genome structure and evolution of Antirrhinum majus L
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