Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 May;137(3):377-393.
doi: 10.1007/s10265-024-01523-6. Epub 2024 Feb 19.

From forest to savanna and back to forest: Evolutionary history of the genus Dimorphandra (Fabaceae)

Vinicius Delgado da Rocha  1 , Thaís Carolina da Silva Dal'Sasso  1   2 , Christina Cleo Vinson Williams  3 , Marcelo Fragomeni Simon  4 , Marcelo Leandro Bueno  5 , Luiz Orlando de Oliveira  6
Affiliations

From forest to savanna and back to forest: Evolutionary history of the genus Dimorphandra (Fabaceae)

Vinicius Delgado da Rocha et al. J Plant Res. 2024 May.

Abstract

The tree genus Dimorphandra (Fabaceae), which contains 26 species divided into three subgenera, was studied using DNA sequence data from six chloroplast genome regions (cpDNA) and the nuclear internal transcribed spacer (ITS). The analyses, which included Bayesian phylogenies and haplotype networks, ancestral area reconstructions, and ecological niche modeling, allowed for exploring the evolutionary history of Dimorphandra. Within the subgenus Phaneropsia, the cpDNA sequence data were more closely-related to species from the genus Mora, while the ITS sequence data displayed a closer phylogenetic relationship with the subgenus Pocillum. This incongruence may be due to incomplete lineage sorting associated with ancient polymorphisms. The Amazonian Dimophandra lineages were highly polymorphic and divergent, while those from the Cerrado and the Atlantic Forest had low levels of polymorphisms. The Amazon likely gave rise to the Dimophandra lineage that produced the Cerrado species, while a Cerrado lineage likely gave rise to the Atlantic Forest species. Habitat shifts were identified as a key factor in shaping the late evolutionary history of Dimorphandra.

Keywords: Amazon; Atlantic Forest; Cerrado; Evolution; Habitat shifts; Molecular phylogeny.

PubMed Disclaimer

References

    1. Aguiar AJC, Melo GAR, Vasconcelos TNC et al (2019) Biogeography and early diversification of Tapinotaspidini oil-bees support presence of Paleocene savannas in South America. Mol Phylogenet Evol 143:1–10. https://doi.org/10.1016/j.ympev.2019.106692 - DOI
    1. Allouche O, Tsoar A, Kadmon R (2006) Assessing the accuracy of species distribution models: prevalence, kappa, and the true skill statistic (TSS). J App Ecol 43:223–232. https://doi.org/10.1111/j.1365-2664.2006.01214.x - DOI
    1. Amshoff GJH (1939) On South American Papilionaceae. Mededelingen Van Het Botanisch Museum En Herbarium Van De Rijksuniversiteit Te Utrecht 52:7–9
    1. Antonelli A, Zizka A, Carvalho FA et al (2018) Amazonia is the primary source of Neotropical biodiversity. Proc Natl Acad Sci USA 115:6034–6039. https://doi.org/10.1073/pnas.1713819115 - DOI - PMC - PubMed
    1. Araújo MB, New M (2007) Ensemble forecasting of species distributions. Trends Ecol Evol 22:42–47. https://doi.org/10.1016/j.tree.2006.09.010 - DOI - PubMed

LinkOut - more resources