RT Journal Article
T1 The roles of vicariance and isolation by distance in shaping biotic diversification across an ancient archipelago: evidence from a Seychelles caecilian amphibian
A1 Maddock, Simon T.
A1 Nussbaum, Ronald A.
A1 Day, Julia J.
A1 Latta, Leigh
A1 Miller, Mark
A1 Fisk, Debra L.
A1 Wilkinson, Mark
A1 Rodrigues Passos Rocha, Sara
A1 Gower, David J.
A1 Pfrender, Michael E.
K1 2409 Genética
K1 2415 Biología Molecular
AB Background: Island systems offer excellent opportunities for studying the evolutionary histories of species by virtue of their restricted size and easily identifiable barriers to gene flow. However, most studies investigating evolutionary patterns and processes shaping biotic diversification have focused on more recent (emergent) rather than ancient oceanic archipelagos. Here, we focus on the granitic islands of the Seychelles, which are unusual among island systems because they have been isolated for a long time and are home to a monophyletic radiation of caecilian amphibians that has been separated from its extant sister lineage for ca. 65–62 Ma. We selected the most widespread Seychelles caecilian species, Hypogeophis rostratus, to investigate intraspecific morphological and genetic (mitochondrial and nuclear) variation across the archipelago (782 samples from nine islands) to identify patterns and test processes that shaped their evolutionary history within the Seychelles.
PB BMC Evolutionary Biology
SN 14712148
YR 2020
FD 2020-08-26
LK http://hdl.handle.net/11093/3422
UL http://hdl.handle.net/11093/3422
LA eng
NO BMC Evolutionary Biology, 20, 110 (2020)
NO National Science Foundation | Ref. BSR 88-17453
DS Investigo
RD 08-sep-2024