@article {122, title = {Historical biogeography of Boraginales: West Gondwanan vicariance followed by long-distance dispersal?}, journal = {Journal of Biogeography}, volume = {44}, year = {2017}, pages = {158{\textendash}169}, abstract = {

Aim To examine the historical biogeography of the Boraginales using molecular dating and ancestral area reconstruction. Location World-wide. Methods We constructed data sets that included all major clades of Boraginales and all orders of asterids using previously published sequences of four plastid markers (trnL-trnF, rps16, ndhF, rbcL). We estimated divergence times using a Bayesian uncorrelated, lognormal relaxed clock approach with four different fossil calibration schemes. Ancestral areas were reconstructed using maximum likelihood methods (Dispersal-Extinction-Cladogenesis). Results Boraginales originated during the Early to Late Cretaceous and started its diversification in the Late Cretaceous. The inferred ancestral area of Boraginales includes the Americas and Africa. The two major clades of Boraginales diversified during the Early Paleogene from African and American ancestors respectively. Early branching families in both clades (Codonaceae and Wellstediaceae in one clade and Hydrophyllacee and Namaceae in the other) may have remained restricted to their areas of origin. The other families started diversifying in several regions of the world during the Eocene (Boraginaceae s.str., Heliotropiaceae, Ehretiaceae) or later (Cordiaceae). Main conclusions Molecular dating and ancestral area reconstruction may be broadly consistent with the idea of a vicariant origin of the two major clades of Boraginales after the break-up of West Gondwana, followed by several independent trans-oceanic dispersal events into most areas of the world. However, uncertainty in both divergence times and ancestral area reconstruction do not rule out the possibility of an origin involving long-distance dispersal.

}, keywords = {Ancestral area reconstruction, Boraginaceae, historical biogeography, Molecular dating, vicariance, West Gondwana}, issn = {1365-2699}, doi = {10.1111/jbi.12841}, url = {http://onlinelibrary.wiley.com/doi/10.1111/jbi.12841/abstract}, author = {Luebert, Federico and Couvreur, Thomas L. P. and Marc Gottschling and Hilger, Hartmut H. and Miller, James S. and M. Weigend} } @article {gottschling_testing_2004, title = {Testing hypotheses on disjunctions present in the primarily woody Boraginales: Ehretiaceae, Cordiaceae, and Heliotropiaceae, inferred from ITS1 sequence data}, journal = {Int. J. Plant Sci.}, volume = {165}, number = {4 Suppl.}, year = {2004}, pages = {S123{\textendash}S135}, abstract = {

Hypotheses on the origin of the current distribution patterns and bicontinental disjunctions of Cordiaceae, Ehretiaceae, and Heliotropiaceae (Primarily Woody Boraginales) are tested by pairwise comparison of Kimura two-parameter distances. Estimated absolute dates of fossils and geological events (plate tectonics, climate changes) were used to calibrate a molecular clock. A mid-Cretaceous origin of the Primarily Woody Boraginales is proposed with an initial diversification in South America. Plate tectonics appear to play a minor role in their phylogeography. Most disjunctions are best explained by the rare events of long-distance dispersal because of the widespread occurrence of drupaceous fruits and their potential for endozoochoria. Furthermore, migrations and extinctions might have played a considerable role in the formation of the current distribution patterns.

}, keywords = {{ITS1}, distribution, divergence rate, Kimura two-parameter distances, long-distance dispersal, paleoclimate, phylogeography, vicariance.}, author = {Marc Gottschling and Diane, N and HH Hilger and M. Weigend} } @article {hilger_euro+med_2005, title = {The {Euro+Med} treatment of Boraginaceae in Willdenowia 34 - a response}, journal = {Willdenowia}, volume = {35}, year = {2005}, pages = {43{\textendash}48}, author = {HH Hilger and Marc Gottschling and Federico Selvi and Bigazzi, M. and E. Langstr{\"o}m and Zippel, E. and Diane, N. and M. Weigend} } @article {gottschling_congruence_2005, title = {Congruence of a phylogeny of Cordiaceae (Boraginales) inferred from {ITS1} sequence data with morphology, ecology, and biogeography}, volume = {92}, year = {2005}, pages = {425{\textendash}437}, keywords = {Boraginales 2013}, author = {Marc Gottschling and Miller, JS and M. Weigend and HH Hilger} } @article {22, title = {Fossil and extant Western Hemisphere Boragineae, and the polyphyly of "Trigonotideae" Riedl (Boraginaceae: Boraginoideae)}, journal = {Systematic Botany}, volume = {35}, year = {2010}, note = {

doi: 10.1600/036364410X518874
0363-6445
doi: 10.1600/036364410X518874

}, month = {2010///}, pages = {409 - 419}, abstract = {null}, url = {http://www.bioone.org/doi/abs/10.1600/036364410X518874}, author = {M. Weigend and Marc Gottschling and Federico Selvi and HH Hilger} } @article {23, title = {Five new species of Lithospermum L. (Boraginaceae tribe Lithospermeae) in Andean South America: Another radiation in the Amotape-Huancabamba zone}, journal = {Taxon}, volume = {59}, year = {2010}, note = {

[1]
[2]
[3]
[4]

}, month = {2010///}, pages = {1161 - 1179}, url = {http://www.ingentaconnect.com/content/iapt/tax/2010/00000059/00000004/art00015}, author = {M. Weigend and Marc Gottschling and HH Hilger and Nicolai M. N{\"u}rk} } @article {25, title = {Marbleseeds are gromwells - Systematics and evolution of Lithospermum and allies (Boraginaceae tribe Lithospermeae) based on molecular and morphological data}, journal = {Molecular Phylogenetics and Evolution}, volume = {52}, year = {2009}, month = {2009///}, pages = {755 - 768}, keywords = {America Fruit Historical biogeography Macromeria Nomosa Onosmodium Phylogeny Pollen morphology Timing}, url = {http://www.sciencedirect.com/science/article/B6WNH-4WBK7BK-3/2/5ef424fa3684d5c985634011154460d5}, author = {M. Weigend and Marc Gottschling and Federico Selvi and HH Hilger} } @article {2, title = {From capsules to nutlets {\textendash} Phylogenetic relationships in the Boraginales}, journal = {Cladistics}, volume = {30}, year = {2014}, month = {2014}, pages = {508-518}, doi = {10.1111/cla.12061}, url = {http://onlinelibrary.wiley.com/doi/10.1111/cla.12061/abstract}, author = {M. Weigend and Federico Luebert and Marc Gottschling and Couvreur, T. L. P. and HH Hilger and James S. Miller} }