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The influence of tectonics, sea-level changes and dispersal on migration and diversification of Isonandreae (Sapotaceae)
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2014 (English)In: Botanical journal of the Linnean Society, ISSN 0024-4074, E-ISSN 1095-8339, Vol. 174, no 1, 130-140 p.Article in journal (Refereed) Published
Abstract [en]

Internal transcribed spacer (ITS) ribosomal DNA sequence data were generated for 80 of the c. 200 species of Isonandreae and were added to data from African and Neotropical representatives in subfamily Sapotoideae and outgroups in Sapotaceae. Bayesian dating and ancestral area reconstruction indicated that Isonandreae are derived from within an African grade. Multiple Australasian species or lineages are derived from Sundanian lineages in South-East Asia with stem ages originating from the late Oligocene. Sri Lankan and Indian lineages are also derived from Sundanian lineages. Our results are consistent with migration from Africa into Sundania followed by numerous over-water dispersal events across Wallace's Line into Australasia and migration from Sundania to the Indian subcontinent. Pleistocene speciation indicates that sea-level changes during that epoch could have been responsible for some species diversification in Sundania.

Place, publisher, year, edition, pages
Wiley-Blackwell, 2014. Vol. 174, no 1, 130-140 p.
Keyword [en]
Australasia, dated phylogenetic tree, India, Pleistocene, Sapotoideae, South-East Asia, speciation, Wallace's Line
National Category
Plant Biotechnology
URN: urn:nbn:se:su:diva-99132DOI: 10.1111/boj.12108ISI: 000328307800006OAI: diva2:686881


Available from: 2014-01-13 Created: 2014-01-12 Last updated: 2014-01-13Bibliographically approved

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The Bergius Botanical Garden MuseumDepartment of Ecology, Environment and Plant Sciences
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Botanical journal of the Linnean Society
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