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United States Department of Agriculture

Agricultural Research Service

Research Project: Genetic Characterization, Genetic Improvement, and Best Horticultural Management Practices for Subtropical/Tropical Ornamental Germplasm

Location: Subtropical Horticulture Research

Title: Molecular Systematics of Threatened Seed Plant Species Endemic in the Caribbean Islands

Authors
item Oleas, Nora -
item Jestrow, Brett -
item Calonje, Michael -
item Peguero, Brígido -
item Jiménez, Francisco -
item Rodríguez-Peña, Rosa -
item Oviedo, Ramona -
item Santiago-Valentín, Eugenio -
item Meerow, Alan
item Abdo, Melissa -
item Maunder, Michael -
item Griffith, Patrick -
item Francisco-Ortega, Javier -

Submitted to: Botanical Review
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 15, 2012
Publication Date: August 27, 2013
Citation: Oleas, N., Jestrow, B., Calonje, M., Peguero, B., Jiménez, F., Rodríguez-Peña, R., Oviedo, R., Santiago-Valentín, E., Meerow, A.W., Abdo, M., Maunder, M., Griffith, P., Francisco-Ortega, J. 2013. Molecular Systematics of Threatened Seed Plant Species Endemic in the Caribbean Islands. Botanical Review. DOI: doi:10.1007/s12229-013-9130-y.

Interpretive Summary: A review of available Caribbean Island red-list species (Critically Endangered and Endangered categories based on the IUCN guidelines is presented. A database of at least 1,300 endemic species that are either Critically Endangered or Endangered sensu IUCN was created, and their relationships based on DNA sequences analyzed. There are molecular systematic studies available for 112 of them. Six of these species (in six genera) are the only members of early divergent lineages that are most closely related to groups composed of a large number of clades. Seven of the species (in seven genera) belong to groups that have a small number of taxa but are most closely related to species/genus-rich groups. Ten of the species (in six genera) are most closely related to taxa restricted to South America or nested in groups endemic to this region. Fifty-seven of the species (in 35 genera) are most closely related to Caribbean Island endemics species. Four of the species belong to groups that are linked to groups from Africa.

Technical Abstract: A review of available Caribbean Island red-lists species (CR and EN categories based on the IUCN guidelines from 2001, and E category established according to the IUCN guidelines from 1980) is presented. A database of at least 1,300 endemic species that are either Critically Endangered or Endangered sensu IUCN was created. There are molecular systematic studies available for 112 of them. Six of these species (in six genera) are the only members of early divergent lineages that are sister to groups composed of a large number of clades. Seven of the species (in seven genera) belong to clades that have a small number of taxa but are sister to species/genus-rich clades. Ten of the species (in six genera) are sister to taxa restricted to South America or nested in clades endemic to this region. Fifty-seven of the species (in 35 genera) are sister to Caribbean Island endemics species. Four of the species belong to clades that are sister to clades from Africa. Erigeron belliastroides is sister to the Galapagos genus Darwiniothamnus. The phylogenetic placement of three of the threatened species resulted in changes in their taxonomic placement; they belong to polyphyletic or paraphyletic genera.

Last Modified: 9/21/2014
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