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Gap-free X and Y chromosome assemblies of Salix arbutifolia reveal an evolutionary change from male to female heterogamety in willows, without a change in the position of the sex-determining locus.
Wang, Yi; Gong, Guang-Nan; Wang, Yuan; Zhang, Ren-Gang; Hörandl, Elvira; Zhang, Zhi-Xiang; Charlesworth, Deborah; He, Li.
Afiliación
  • Wang Y; Eastern China Conservation Centre for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai, 201602, China.
  • Gong GN; Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, 100091, China.
  • Wang Y; Eastern China Conservation Centre for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai, 201602, China.
  • Zhang RG; Eastern China Conservation Centre for Wild Endangered Plant Resources, Shanghai Chenshan Botanical Garden, Shanghai, 201602, China.
  • Hörandl E; Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China.
  • Zhang ZX; Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), University of Goettingen, 37073, Göttingen, Germany.
  • Charlesworth D; Laboratory of Systematic Evolution and Biogeography of Woody Plants, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing, 100091, China.
  • He L; Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3FL, UK.
New Phytol ; 242(6): 2872-2887, 2024 Jun.
Article en En | MEDLINE | ID: mdl-38581199
ABSTRACT
In the Vetrix clade of Salix, a genus of woody flowering plants, sex determination involves chromosome 15, but an XY system has changed to a ZW system. We studied the detailed genetic changes involved. We used genome sequencing, with chromosome conformation capture (Hi-C) and PacBio HiFi reads to assemble chromosome level gap-free X and Y of Salix arbutifolia, and distinguished the haplotypes in the 15X- and 15Y-linked regions, to study the evolutionary history of the sex-linked regions (SLRs). Our sequencing revealed heteromorphism of the X and Y haplotypes of the SLR, with the X-linked region being considerably larger than the corresponding Y region, mainly due to accumulated repetitive sequences and gene duplications. The phylogenies of single-copy orthogroups within the SLRs indicate that S. arbutifolia and Salix purpurea share an ancestral SLR within a repeat-rich region near the chromosome 15 centromere. During the change in heterogamety, the X-linked region changed to a W-linked one, while the Z was derived from the Y.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Cromosomas de las Plantas / Salix Idioma: En Revista: New Phytol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Cromosomas de las Plantas / Salix Idioma: En Revista: New Phytol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido