Data from: A novel phylogenomics pipeline reveals extensive topological conflict in the evolution of the angiosperm order Cucurbitales
Data files
Jul 07, 2026 version files 37.55 MB
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AppendixS1.zip
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AppendixS2.zip
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AppendixS3.zip
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AppendixS4.zip
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AppendixS5.zip
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AppendixS6.zip
5.77 MB
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README.md
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Abstract
High-throughput sequencing data, such as target capture, RNA-Seq, genome skimming, and high-depth whole-genome sequencing, are used for phylogenomic analyses. Integrating these mixed data types into a single phylogenomic dataset requires several bioinformatic tools and significant computational resources. Here, we present Captus, a novel pipeline to analyze mixed data efficiently. Captus assembles these data types, searches for loci of interest, and produces paralog-filtered alignments. If reference target loci are not available for the studied taxon, Captus can also be used to discover new putative homologs via sequence clustering. Compared to other software, Captus allows the recovery of a greater number of more complete loci across more species. We apply Captus to assemble a comprehensive dataset, comprising the four types of sequencing data for the angiosperm order Cucurbitales, a clade of about 3,100 species in eight mainly tropical plant families, including begonias (Begoniaceae) and gourds (Cucurbitaceae). Our phylogenomic results support the currently accepted circumscription of Cucurbitales except for the position of the holoparasitic Apodanthaceae, which group with Rafflesiaceae in Malpighiales. A subset of mitochondrial gene regions supports the earlier divergence of Apodanthaceae in Cucurbitales. However, the nuclear regions and the majority of mitochondrial regions place Apodanthaceae in Malpighiales. Within Cucurbitaceae, we confirm the monophyly of all currently accepted tribes but also reveal hybridization and incomplete lineage sorting both in Cucurbitales and within Cucurbitaceae. We show that contradicting results among earlier phylogenetic studies in Cucurbitales can be reconciled when accounting for gene tree conflict and demonstrate the efficiency of Captus for complex datasets.
https://doi.org/10.5061/dryad.xpnvx0krp
Description of the data and file structure
AppendixS1.zip
- Appendix S1. Plastome segments used as reference targets provided as a file in FASTA format Plastome38.fasta
AppendixS2.zip
- Appendix S2. Newly found nuclear putative homologs used as reference targets provided as a file in FASTA format RNA5435.fasta
AppendixS3.zip
- Appendix S3. Estimated species trees in NEWICK format using coalescence (ASTRAL-Pro) or concatenation (IQ-TREE). Naming of the coalescent trees indicates the program used to estimate the gene trees (FastTree or IQ-TREE), the target file (Angiosperms353, Mega353, or RNA5435), and the Captus paralog filter (informed, naive, or unfiltered). Naming of concatenation species trees indicates the target file used (Angiosperms353, Mega353, or Plastome38), and the Captus paralog filter (informed or naive).
AppendixS4.zip
- Appendix S4. Alignments and trees of the mitochondrial regions in NEXUS format.
AppendixS5.zip
- Appendix S5. Benchmarking data: Trimmed gene alignments in FASTA format and their estimated gene and species trees in NEWICK format. Naming indicates the pipeline used (Captus, HybPiper-BLASTx, HybPiper-DIAMOND), the Captus paralog filter (informed, naive, or unfiltered), and whether paralogs were included for HybPiper or not (with_paralogs or without_paralogs).
AppendixS6.zip
- Appendix S6. Reference targets sets used in the decontamination of Lemurosicyos variegata (Supplementary Method). Nuclear proteins (Cucumber_V3_chr_201810.pep.fa), plastome proteins (Cucumis_sativus_PTD.faa), mitochondrial proteins (Cucumis_sativus_MIT.faa), and non-coding sequences (Cucurbitales_NC.fna).
Code/software
Captus: https://github.com/edgardomortiz/Captus
Captus' documentation: https://edgardomortiz.github.io/captus.docs/
