Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • Data from: Complex Reticulation in Backbone Subfamily Relationships in Leguminosae

    Metadata Updated: July 11, 2025

    Contradictory lines of evidence have made it difficult to resolve the phylogenetic history of the legume diversification era; this is true for the backbone topology, and for the number and timing of whole genome duplications (WGDs). By analyzing the transcriptomic data for 473 gene families in 76 species covering all six accepted legume subfamilies, we assessed the phylogenetic relationships of the legume backbone and uncovered evidence of independent whole genome duplications in each of the six legume subfamilies. Three subfamilies — Cercidoideae, Dialioideae, and Caesalpinioideae — bear evidence of an allopolyploid duplication pattern suggestive of ancient hybridization. In Cercidoideae and Dialioideae, the hybridization appears to be within-subfamily, with the basal genera Cercis and Poeppigia appearing to be unduplicated descendants of one of the parental lineages; in Caesalpinioideae, the hybridization appears to involve a member of the Papilionoid lineage, and some other lineage, potentially extinct. Three independent lines of evidence, consisting of a concatenated superalignment, concordance factor analysis of the set of gene family alignments and topologies, and direct inference of reticulation events via maximum pseudolikelihood implemented by PhyloNet, converged on a single backbone hypothesis and the above hypotheses of reticulate evolution.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date July 11, 2025
    Metadata Updated Date July 11, 2025

    Metadata Source

    Harvested from USDA JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 11, 2025
    Metadata Updated Date July 11, 2025
    Publisher Agricultural Research Service
    Maintainer
    Identifier 10.15482/USDA.ADC/26254778.v2
    Data Last Modified 2025-06-13
    Public Access Level public
    Bureau Code 005:18
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id a5f7309b-b900-45a4-942a-4ce3062acffd
    Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
    Harvest Source Title USDA JSON
    License https://opendefinition.org/licenses/odc-pddl/
    Program Code 005:040
    Source Datajson Identifier True
    Source Hash 11f6d48ab40f19262413a178d1864ef43b2eb7b2e3b42f996cf5847fd1ce9f40
    Source Schema Version 1.1
    Temporal 2020-01-01/2024-07-01

    Didn't find what you're looking for? Suggest a dataset here.