Data for: Evolution and diversity of the orchid genus Dendrobium
收藏NIAID Data Ecosystem2026-05-02 收录
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http://datadryad.org/dataset/doi%253A10.5061%252Fdryad.rxwdbrvjk
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资源简介：
Orchids constitute one of the most diverse families of angiosperms, yet their genome evolution and diversity remain unclear. To thoroughly explore the genome diversity of Dendrobium orchids, we selected representative species from 12 major Dendrobium sections that are the representatives of the genus in terms of life forms (lithophyte or epiphyte), floral morphology, flowering time, geographical distribution, and traditional utility. We first constructed a high-confidence phylogenetic tree and calculated the divergence times using single-copy orthologous families from 27 different plant species. Since whole genome duplication (WGD) and chromosome rearrangement events are considered important factors in genome evolution and speciation, we then investigated WGD events and karyotypic evolution within the Dendrobium genus.
Methods
1, The orthologous genes were identified by OrthoFinder (v2.5.4) with default parameters.
2, Based on the previously reported telomere-centric model, the Ancestral Dendrobium Karyotype (ADK) was reconstructed. The karyotype evolutionary trajectories from the ADK to the modern chromosomes were examined using WGDI.
3, The intra-species gene synteny and collinearity were determined by MCScanX.
创建时间：
2024-12-11
