ArticleDNA research : an international journal for rapid publication of reports on genes and genomes2022
Chromosomal-level genome assembly of the orchid tree Bauhinia variegata (Leguminosae; Cercidoideae) supports the allotetraploid origin hypothesis of Bauhinia.
Article in DNA research : an international journal for rapid publication of reports on genes and genomes, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 13 citations in OpenAlex.
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- Legume genome structures and histories inferred from Cercis canadensis and Chamaecrista fasciculata genomes.The Plant journal : for cell and molecular biology · 2026Article
- From assemblies to ancestry: Genomic advances illuminates legume evolution.Genetics and molecular biology · 2026Article
- Chromosome-scale genome assembly of Flemingia macrophylla.Scientific data · 2025Article
- The haplotype-resolved T2T genome for Bauhinia × blakeana sheds light on the genetic basis of flower heterosis.GigaScience · 2025Article
- The complete mitochondrial genome ofMitochondrial DNA. Part B, Resources · 2024Article
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11 authors at 2 institutions in 1 country.
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Abstract
Cercidoideae, one of the six subfamilies of Leguminosae, contains one genus Cercis with its chromosome number 2n = 14 and all other genera with 2n = 28. An allotetraploid origin hypothesis for the common ancestor of non-Cercis genera in this subfamily has been proposed; however, no chromosome-level genomes from Cercidoideae have been available to test this hypothesis. Here, we conducted a chromosome-level genome assembly of Bauhinia variegata to test this hypothesis. The assembled genome is 326.4 Mb with the scaffold N50 of 22.1 Mb and contains 37,996 protein-coding genes. The Ks distribution between gene pairs in the syntenic regions indicates two whole-genome duplications (WGDs): one is B. variegata-specific, and the other is shared among core eudicots. Although Ks between gene pairs generated by the recent WGD in Bauhinia is greater than that between Bauhinia and Cercis, the WGD was not detected in Cercis, which can be explained by an accelerated evolutionary rate in Bauhinia after divergence from Cercis. Ks distribution and phylogenetic analysis for gene pairs generated by the recent WGD in Bauhinia and their corresponding orthologs in Cercis support the allopolyploidy origin hypothesis of Bauhinia. The genome of B. variegata also provides a genomic resource for dissecting genetic basis of its ornamental traits.
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