Título
Re-establishment of the genus Pseudalbizzia (Leguminosae, Caesalpinioideae, mimosoid clade): the New World species formerly placed in Albizia
Autor
GABRIELA AVILES PERAZA
Erik Koenen
Ricarda Riina
Colin Hughes
Jens Ringelberg
GERMAN CARNEVALI FERNANDEZ CONCHA
Ivón Mercedes Ramírez Morillo
Lilia Lorena Can Itza
Iván Tamayo-Cen
Jorge Humberto Ramírez Prado
Xavier Cornejo
Sawai Mattapha
RODRIGO STEFANO DUNO
Nivel de Acceso
Acceso Abierto
Referencia de datos
datasetDOI/doi: 10.3897/phytokeys.205.76821
Materias
Resumen o descripción
Following recent mimosoid phylogenetic and phylogenomic studies demonstrating the non-monophyly of the genus Albizia, we present a new molecular phylogeny focused on the neotropical species in the genus, with much denser taxon sampling than previous studies. Our aims were to test the monophyly of the neotropical section Arthrosamanea, resolve species relationships, and gain insights into the evolution of fruit morphology. We perform a Bayesian phylogenetic analysis of sequences of nuclear internal and external transcribed spacer regions and trace the evolution of fruit dehiscence and lomentiform pods. Our results find further support for the non-monophyly of the genus Albizia, and confirm the previously proposed segregation of
Hesperalbizia, Hydrochorea, Balizia and Pseudosamanea. All species that were sampled from section Arthrosamanea form a clade that is sister to a clade composed of Jupunba, Punjuba, Balizia and Hydrochorea. We find that lomentiform fruits are independently derived from indehiscent septate fruits in both Hydrochorea and section Arthrosamanea. Our results show that morphological adaptations to hydrochory, associated with shifts into seasonally flooded habitats, have occurred several times independently in different geographic areas and different lineages within the ingoid clade. This suggests that environmental conditions have likely played a key role in the evolution of fruit types in Albizia and related genera. We resurrect the name Pseudalbizzia to accommodate the species of section Arthrosamanea, except for two species that were not sampled here but have been shown in other studies to be more closely related to other ingoid genera and we restrict the name Albizia s.s. to the species from Africa, Madagascar, Asia, Australia, and the Pacific. Twenty-one new nomenclatural combinations in Pseudalbizzia are proposed, including 16 species and 5 infraspecific varietal names. In addition to the type species Pseudalbizzia berteroana, the genus has 17 species distributed across tropical regions of the Americas, including the Caribbean. Finally, a new infrageneric classification into five sections is proposed and a distribution map of the species of Pseudalbizzia is presented.
Fecha de publicación
2022
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
PhytoKeys, 205, 371-400, 2022.
Idioma
Inglés
Sugerencia de citación
Aviles Peraza G, Koenen EJM, Riina R, Hughes CE, Ringelberg JJ, Carnevali Fernández-Concha G, Ramírez Morillo IM, Can Itza LL, Tamayo-Cen I, Ramírez Prado JH, Cornejo X, Mattapha S, Duno de Stefano R (2022) Re-establishment of the genus Pseudalbizzia (Leguminosae, Caesalpinioideae, mimosoid clade): the New World species formerly placed in Albizia. In: Hughes CE, de Queiroz LP, Lewis GP (Eds) Advances in Legume Systematics 14. Classification of Caesalpinioideae Part 1: New generic delimitations. PhytoKeys 205: 371–400. https://doi.org/10.3897/phytokeys.205.76821
Repositorio Orígen
Repositorio Institucional CICY
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