02585nas a2200265 4500008004100000022001400041245010700055210006900162300001400231490000700245520173400252653003401986653001702020653002802037653002102065653001502086653001802101100002202119700002802141700002202169700002402191700002202215700001602237856006602253 2017 eng d a1365-269900aHistorical biogeography of Boraginales: West Gondwanan vicariance followed by long-distance dispersal?0 aHistorical biogeography of Boraginales West Gondwanan vicariance a158–1690 v443 a

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.

10aAncestral area reconstruction10aBoraginaceae10ahistorical biogeography10aMolecular dating10avicariance10aWest Gondwana1 aLuebert, Federico1 aCouvreur, Thomas, L. P.1 aGottschling, Marc1 aHilger, Hartmut, H.1 aMiller, James, S.1 aWeigend, M. uhttp://onlinelibrary.wiley.com/doi/10.1111/jbi.12841/abstract02602nas a2200241 4500008004100000245017500041210007100216250001600287260003200303300001400335490000800349520178600357653002102143653000802164653002402172653001302196653002002209100002202229700002102251700002402272700001602296856004802312 2016 en d00aNo longer shipwrecked—Selkirkia (Boraginaceae) back on the mainland with generic rearrangements in South American “Omphalodes” based on molecular data0 aNo longer shipwrecked—iSelkirkiai Boraginaceae back on the mainl a24 Aug 2016 bMagnolia Pressc24 Aug 2016 a231–2510 v2703 a

The genus Omphalodes (Boraginaceae) has recently been shown to be polyphyletic. Two distantly related lineages have already been segregated into the genera Memoremea (Central Europe) and Nihon (East Asia), respectively. We expanded the taxon sampling in the Omphalodeae and confirm that the genus is still paraphyletic to the two monotypic genera Selkirkia from the Juan Fernández Islands off the coast of Chile and Myosotidium from Chatham Island off the coast of New Zealand, plus two South American species currently assigned to Cynoglossum, and one species recently segregated from the latter genus as Mapuchea. Four clades are retrieved in a narrowly delimited Omphalodes group: 1) Iberodes, the annual southwestern European species of Omphalodes s.l. that have been recently segregated into this genus, 2) Omphalodes s.str., perennial western Eurasian species (including the type species of the genus), 3) the North American species of Omphalodes, and 4) the southern hemispheric Myosotidium as sister to a monophyletic group with Mapuchea plus the two other South American species of “Cynoglossum” and the island shrub Selkirkia berteroi. We argue that the taxa of this latter clade are best placed into an expanded genus Selkirkia. Selkirkia then represents a morphologically coherent entity with glochidiate nutlets. Its considerable difference in vegetative morphology to Myosotidium is easily explained by the highly divergent habitats the respective plants occupy. Lectotypifications, illustrations, and descriptions are provided for Myosotidium and the species of the expanded genus Selkirkia.

10aisland woodiness10aITS10amolecular phylogeny10aTaxonomy10atrnL–trnL–F1 aHolstein, Norbert1 aChacón, Juliana1 aHilger, Hartmut, H.1 aWeigend, M. uhttps://boraginales.myspecies.info/node/11600864nas a2200229 4500008004100000245017600041210006900217300001400286490000700300100002100307700002200328700002400350700002700374700002000401700002000421700002000441700003000461700001900491700002500510700001600535856008300551 2016 eng d00aThe borage family (Boraginaceae s.str.): A revised infrafamilial classification based on new phylogenetic evidence, with emphasis on the placement of some enigmatic genera0 aborage family Boraginaceae sstr A revised infrafamilial classifi a523–5460 v651 aChacón, Juliana1 aLuebert, Federico1 aHilger, Hartmut, H.1 aOvchinnikova, Svetlana1 aSelvi, Federico1 aCecchi, Lorenzo1 aGuilliams, Matt1 aHasenstab-Lehman, Kristen1 aSutorý, Karel1 aSimpson, Michael, G.1 aWeigend, M. uhttp://www.ingentaconnect.com/content/iapt/tax/2016/00000065/00000003/art00007