Phylogenomic data support a non-bifurcating speciation history within the Paleosuchus palpebrosus species complex (Alligatoridae: Caimaninae).
2022
MUNIZ, F. de L. | POLO, E. | CAMPOS, Z. | HERNÁNDEZ- RANGEL, S. M. | FARIAS, I. P. | HRBEK, T.
Evento Online.
Afficher plus [+] Moins [-]anglais. Abstract: In our previous study we detected three Evolutionarily Significant Units and proposed that P. palpebrosus is a species complex. In the present study, we expanded our genomic sampling to 6,733 loci to delimit lineages, test monophyly and resolve phylogenetic relationships between lineages. Cluster analyzes were consistent in indicating four deeply divergent groups - Amazon (A), Madeira (M), Bolivia (B) and Pantanal (P). Species tree estimated with SNAPP (A,(M,(B,P))) was well supported and different from that estimated from the itochondrial cytb gene (A,((M+B),P)). Supertree estimated in ASTRAL-III was consistent with the SNAPP results and confirmed the monophyly of A, P and B+P, although B and M were both not well supported as monophyletic. Additionally, the topology resulting from SNAPP was analyzed in G-PhoCS, which estimated three unidirectional migration bands.
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