BACKGROUND: The Ampelopsis clade (Ampelopsis and its close allies) of the grape family Vitaceae contains ca. 43 species disjunctly distributed in Asia, Europe, North America, South America, Africa, and Australia, and is a rare example to study both the Northern and the Southern Hemisphere intercontinental disjunctions. We reconstruct the temporal and spatial diversification of the Ampelopsis clade to explore the evolutionary processes that have resulted in their intercontinental disjunctions in six continents. RESULTS: The Bayesian molecular clock dating and the likelihood ancestral area analyses suggest that the Ampelopsis clade most likely originated in North America with its crown group dated at 41.2 Ma (95% HPD 23.4-61.0 Ma) in the middle Eocene. Two independent Laurasian migrations into Eurasia are inferred to have occurred in the early Miocene via the North Atlantic land bridges. The ancestor of the Southern Hemisphere lineage migrated from North America to South America in the early Oligocene. The Gondwanan-like pattern of intercontinental disjunction is best explained by two long-distance dispersals: once from South America to Africa estimated at 30.5 Ma (95% HPD 16.9-45.9 Ma), and the other from South America to Australia dated to 19.2 Ma (95% HPD 6.7-22.3 Ma). CONCLUSIONS: The global disjunctions in the Ampelopsis clade are best explained by a diversification model of North American origin, two Laurasian migrations, one migration into South America, and two post-Gondwanan long-distance dispersals. These findings highlight the importance of both vicariance and long distance dispersal in shaping intercontinental disjunctions of flowering plants.
BACKGROUND: The Ampelopsis clade (Ampelopsis and its close allies) of the grape family Vitaceae contains ca. 43 species disjunctly distributed in Asia, Europe, North America, South America, Africa, and Australia, and is a rare example to study both the Northern and the Southern Hemisphere intercontinental disjunctions. We reconstruct the temporal and spatial diversification of the Ampelopsis clade to explore the evolutionary processes that have resulted in their intercontinental disjunctions in six continents. RESULTS: The Bayesian molecular clock dating and the likelihood ancestral area analyses suggest that the Ampelopsis clade most likely originated in North America with its crown group dated at 41.2 Ma (95% HPD 23.4-61.0 Ma) in the middle Eocene. Two independent Laurasian migrations into Eurasia are inferred to have occurred in the early Miocene via the North Atlantic land bridges. The ancestor of the Southern Hemisphere lineage migrated from North America to South America in the early Oligocene. The Gondwanan-like pattern of intercontinental disjunction is best explained by two long-distance dispersals: once from South America to Africa estimated at 30.5 Ma (95% HPD 16.9-45.9 Ma), and the other from South America to Australia dated to 19.2 Ma (95% HPD 6.7-22.3 Ma). CONCLUSIONS: The global disjunctions in the Ampelopsis clade are best explained by a diversification model of North American origin, two Laurasian migrations, one migration into South America, and two post-Gondwanan long-distance dispersals. These findings highlight the importance of both vicariance and long distance dispersal in shaping intercontinental disjunctions of flowering plants.
Authors: Hengchang Wang; Michael J Moore; Pamela S Soltis; Charles D Bell; Samuel F Brockington; Roolse Alexandre; Charles C Davis; Maribeth Latvis; Steven R Manchester; Douglas E Soltis Journal: Proc Natl Acad Sci U S A Date: 2009-02-17 Impact factor: 11.205
Authors: Mike Thiv; Timotheüs van der Niet; Frank Rutschmann; Mats Thulin; Thomas Brune; Hans Peter Linder Journal: Am J Bot Date: 2010-12-23 Impact factor: 3.844
Authors: Thomas L P Couvreur; Pierre Sepulchre; Gilles Dauby; Anne Blach-Overgaard; Vincent Deblauwe; Steven Dessein; Vincent Droissart; Oliver J Hardy; David J Harris; Steven B Janssens; Alexandra C Ley; Barbara A Mackinder; Bonaventure Sonké; Marc S M Sosef; Tariq Stévart; Jens-Christian Svenning; Jan J Wieringa; Adama Faye; Alain D Missoup; Krystal A Tolley; Violaine Nicolas; Stéphan Ntie; Frédiéric Fluteau; Cécile Robin; Francois Guillocheau; Doris Barboni Journal: Biol Rev Camb Philos Soc Date: 2020-09-13
Authors: Katherine A Carter; Aaron Liston; Nahla V Bassil; Lawrence A Alice; Jill M Bushakra; Brittany L Sutherland; Todd C Mockler; Douglas W Bryant; Kim E Hummer Journal: Front Plant Sci Date: 2019-12-20 Impact factor: 5.753