AI Article Synopsis
- A comprehensive molecular phylogeny of the Pithecellobium clade within the subfamily Caesalpinioideae is presented, covering five genera and 33 species from the southern U.S. to northeastern South America.
- Researchers aimed to test the monophyly of this group and its genera while uncovering their sister group relationships through an analysis of nuclear ribosomal DNA sequences.
- The findings support the monophyly of the Pithecellobium clade and confirm the monophyletic status of some genera, while discovering that others are non-monophyletic, leading to their reclassification and the establishment of two new genera.
Article Abstract
We present the most complete molecular phylogeny to date of the Pithecellobium clade of subfamily Caesalpinioideae. This neotropical group was informally recognised (as the Pithecellobium alliance) at the end of the 20 century by Barneby and Grimes (1996) and includes five genera and 33 species distributed from the southern United States and Caribbean Islands to north-eastern South America. Our aims were to further test the monophyly of the group and its genera and to identify sister group relationships within and amongst the genera. A phylogenetic analysis of nuclear ribosomal DNA sequences (ITS and ETS) was performed. The results provide further support for the monophyly of the Pithecellobium clade. The genera , and were strongly supported as monophyletic. and were found to be non-monophyletic, prompting their re-circumscriptions and the description of two new genera: and . New combinations are made for the three species transferred to the new genera.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9849026 | PMC |
| http://dx.doi.org/10.3897/phytokeys.205.82728 | DOI Listing |
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