Seed Plant Genera Endemic to the Caribbean Island Biodiversity Hotspot: A Review and a Molecular Phylogenetic Perspective

Francisco‐Ortega, Javier; Santiago‐Valentín, Eugenio; Acevedo‐Rodríguez, Pedro; Lewis, Carl E.; Pipoly, John J.; Meerow, Alan W.; Maunder, Mike

doi:10.1663/0006-8101(2007)73[183:spgett]2.0.co;2

Cited by 46 publications

(34 citation statements)

References 10 publications

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“…Other lines of evidence come from paleontological studies and more recently from molecular phylogenetics. Paleobotanical studies are rather fragmentary and are in need of modern interpretation (Graham, 2003), while molecular studies cover only a small fraction of the West Indian genera of plants (Francisco-Ortega et al, 2007). Although there is no comprehensive flora of the West Indies as to allow an indepth analysis of their floristic affinities, there have been some efforts conducive to the formulation of general patterns of floristic affinities.…”

Section: Floristics Affinitiesmentioning

confidence: 99%

Floristic Richness and Affinities in the West Indies

Acevedo‐Rodríguez

Strong

2008

Bot. Rev

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Comparison of the common floristic elements between the West Indies and the surrounding continents shows a mosaic of affinities that are stronger to Central America and South America as a whole than with either one of them separately or with North America. However, since only 28% of the total West Indian seed plant flora is shared with other geographic regions of the world, the referred exercise is of limited value. Numerous tables are provided to show the distribution of genera throughout the archipelago. The application of phylogenetic studies into the service of biogeography is herein regarded as the next necessary step in elucidating the origins and affinities of the West Indian flora.Resumen El estudio comparativo de los elementos florísticos que existen en común entre las Indias Occidentales y los continentes circundantes muestran un mosaico de afinidades más cercanas a Centro América y Sur América en su totalidad, que con cualquiera de ellos por separado o con Norte América. Sin embargo, este estudio es de valor limitado ya que solo el 28% del total de la flora de plantas con semillas en las Indias Occidentales es compartido con otras regiones del mundo. En este estudio, se muestran numerosas tablas resumiendo los valores de endemismos, la distribución de los géneros dentro y fuera del archipiélago, así como los géneros más especiosos. La utilización de estudios filogenéticos al servicio de la biogeografía en las Indias Occidentales es considerado como el próximo paso esencial para la elucidación del origen y de las afinidades de la flora Antillana.

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Section: Floristics Affinitiesmentioning

confidence: 99%

Floristic Richness and Affinities in the West Indies

Acevedo‐Rodríguez

Strong

2008

Bot. Rev

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“…3; Trénel et al, 2007). This five-gene dataset was also used to estimate divergence times for the Cyclospatheae based on penalized likelihood and Bayesian dating methods, making this study one of the few to use time estimates on biogeographical analysis of West Indian plant genera (Francisco-Ortega et al, 2007). Lineage age estimates ranged from 2-7 Mya indicating a recent radiation of the tribe in the Pliocene just after the modern geography of the Caribbean was established (Graham, 2003;Trénel et al, 2007).…”

Section: Cyclospatheaementioning

confidence: 99%

“…There is however, an increasing interest in the application of plant phylogenetics to complement our understanding of the biogeography of this region (e.g. McDowell & Bremer, 1998;Graham, 2003;Fritsch & McDowell, 2003;Santiago-Valentin & Olmstead, 2004;Francisco-Ortega et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Molecular Phylogenetic Studies of Caribbean Palms (Arecaceae) and Their Relationships to Biogeography and Conservation

2008

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The Caribbean Islands are one of the world's 34 biodiversity hotspots, remarkable for its biological richness and the high level of threat to its flora and fauna. The palms (family Arecaceae) are well represented in the West Indies, with 21 genera (three endemic) and 135 species (121 endemic). We provide an overview of phylogenetic knowledge of West Indian Palms, including their relationships within a plastid DNA-based phylogeny of the Arecaceae. We present new data used to reconstruct the phylogeny of tribe Cryosophileae, including four genera found in the West Indies, based on partial sequences of the low-copy nuclear genes encoding phosphoribulokinase (PRK) and subunit 2 of RNA polymerase II (RPB2). Recently published phylogenetic studies of tribe Cocoseae, based on PRK sequences, and tribes Cyclospatheae and Geonomateae, based on PRK and RPB2 sequences, also provide information on the phylogenetic relationships of West Indian palms. Results of these analyses show many independent origins of the West Indian Palm flora. These phylogenetic studies reflect the complex envolutionary history of the West Indies and no single biogeographical pattern emerges for these palms. The present day distributions of West Indian palms suggest complicated evolutionary interchange among islands, as well as between the West Indies and surrounding continents. We identified six palm lineages that deserve conservation priority. Species-level phylogenies are needed for Copernicia, Sabal, and Roystonea before we can build a more complete understanding of the origin and diversification of West Indian palms.Resumen Las Islas del Caribe constituyen uno de los 34 "hotspots" de biodiversidad del mundo, notables por su riqueza biológica y el alto grado de amenaza de su flora y fauna. La familia Arecaceae esta bien representada en Las Antillas con 21 géneros (tres endémicos) y 135 especies (121 endémicas). Presentamos una síntesis del conocimiento filogénetico de las palmas de Las Antillas incluyendo su posición dentro de la filogenia de la familia Arecaceae basada en ADN cloroplástico. Construímos una nueva filogenia para la tribu Cryosophileae, Bot. Rev. (2008) 74:78-102

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“…The American mainland species and the Caribbean species constitute unequivocally sister groups (Fig. 2), a topology that is not infrequent among plants (Francisco-Ortega et al 2007;Morrone 2014). Outgroup comparison (i.e., Lepidocordia that is likewise distributed in Central America and northern South America) and the statistical analyses of historical biogeography indicate that the ancestor of Rochefortia has been distributed over the American mainland (likely Central America as inferred from the BBM ancestral area reconstruction).…”

Section: Discussionmentioning

confidence: 88%

Strong biogeographic signal in the phylogenetic relationships of Rochefortia Sw. (Ehretiaceae, Boraginales)

2014

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Dioecious and thorny Rochefortia Sw. is a poorly known though distinct element of the Ehretiaceae comprising woody plants restricted to the Caribbean and the adjacent American mainland. The approximately ten species display a great morphological variability and overlapping taxonomic boundaries, which makes it difficult to differentiate them (particularly in the Caribbean region). We investigated the phylogenetic relationships of Rochefortia using DNA sequence data from one nuclear locus (Internal Transcribed Spacer) and three chloroplast DNA loci (rps16, trnL-trnF, trnS-trnG). The monophyly of Rochefortia was confirmed, with a sister group relationship between an American mainland clade and a Caribbean clade. The latter segregates into three, morphologically rather variable lineages, distributed either in the Lesser Antilles or in the eastern Greater Antilles or in the western Greater Antilles. Thus, geographic occurrence rather than morphology is indicative of taxonomic delimitation in Rochefortia.

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Seed Plant Genera Endemic to the Caribbean Island Biodiversity Hotspot: A Review and a Molecular Phylogenetic Perspective

Cited by 46 publications

References 10 publications

Floristic Richness and Affinities in the West Indies

Floristic Richness and Affinities in the West Indies

Molecular Phylogenetic Studies of Caribbean Palms (Arecaceae) and Their Relationships to Biogeography and Conservation

Strong biogeographic signal in the phylogenetic relationships of Rochefortia Sw. (Ehretiaceae, Boraginales)

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