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The Snapdragon Genomes Reveal the Evolutionary Dynamics of the S-Locus Supergene.
Zhu, Sihui; Zhang, Yu'e; Copsy, Lucy; Han, Qianqian; Zheng, Dongfeng; Coen, Enrico; Xue, Yongbiao.
Afiliación
  • Zhu S; National Genomics Data Center & CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, China.
  • Zhang Y; China National Center for Bioinformation, Beijing, China.
  • Copsy L; University of Chinese Academy of Sciences, Beijing, China.
  • Han Q; State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, and the Innovation Academy of Seed Design, Chinese Academy of Sciences, Beijing, China.
  • Zheng D; John Innes Centre, Norwich, United Kingdom.
  • Coen E; University of Chinese Academy of Sciences, Beijing, China.
  • Xue Y; State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, and the Innovation Academy of Seed Design, Chinese Academy of Sciences, Beijing, China.
Mol Biol Evol ; 40(4)2023 04 04.
Article en En | MEDLINE | ID: mdl-37014787
The genus Antirrhinum has been used as a model to study self-incompatibility extensively. The multi-allelic S-locus, carrying a pistil S-RNase and dozens of S-locus F-box (SLF) genes, underlies the genetic control of self-incompatibility (SI) in Antirrhinum hispanicum. However, there have been limited studies on the genomic organization of the S-locus supergene due to a lack of high-quality genomic data. Here, we present the chromosome-level reference and haplotype-resolved genome assemblies of a self-incompatible A. hispanicum line, AhS7S8. For the first time, 2 complete A. hispanicum S-haplotypes spanning ∼1.2 Mb and containing a total of 32 SLFs were reconstructed, whereas most of the SLFs derived from retroelement-mediated proximal or tandem duplication ∼122 Mya. Back then, the S-RNase gene and incipient SLFs came into linkage to form the pro-type of type-1 S-locus in the common ancestor of eudicots. Furthermore, we detected a pleiotropic cis-transcription factor (TF) associated with regulating the expression of SLFs, and two miRNAs may control the expression of this TF. Interspecific S-locus and intraspecific S-haplotype comparisons revealed the dynamic nature and polymorphism of the S-locus supergene mediated by continuous gene duplication, segmental translocation or loss, and TE-mediated transposition events. Our data provide an excellent resource for future research on the evolutionary studies of the S-RNase-based self-incompatibility system.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Antirrhinum Tipo de estudio: Prognostic_studies Idioma: En Revista: Mol Biol Evol Asunto de la revista: BIOLOGIA MOLECULAR Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Antirrhinum Tipo de estudio: Prognostic_studies Idioma: En Revista: Mol Biol Evol Asunto de la revista: BIOLOGIA MOLECULAR Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos