Multilocus phylogeography of the sea snake Hydrophis curtus reveals historical vicariance and cryptic lineage diversity

摘要: ANDERSSubmitted: 13 December 2013Accepted: 16 June 2014doi:10.1111/zsc.12070Ukuwela, K. D. B., de Silva, A., Mumpuni, Fry, B. G. & Sanders, L. (2014). Multilocusphylogeography of the sea snake Hydrophis curtus reveals historical vicariance and crypticlineage diversity. — Zoologica Scripta, 00, 000–000.The Indo-Australian archipelago (IAA) supports world’s highest diversity marine fish,invertebrates reptiles. Many fish invertebrates show congruent phy-logeographic patterns, supporting a view that region’s complex geo-climatic history hasplayed an important role in generating its exceptional biodiversity. Here, we examine popu-lation genetic structure viviparous snake, curtus, to assess how past andpresent barriers gene flow IAA have contributed species ina fully reptile. Mitochondrial anonymous nuclear sequences ten microsatel-lite loci were used identify patterns population expan-sion, reconstruct dated genealogies levels recent flow. These markersrevealed strong concordant geographic within H. with prominent geneticbreak between populations broadly distributed Indian Ocean West Pacific.These estimated diverged late Pliocene or early Pleistocene,and microsatellite admixture analyses suggested limited themdespite current lack dispersal, indicating possible cryptic species. Subse-quent divergence mid–late Pleistocene was detected Pacific cladeamong Phuket-Thailand region, South-East Asia Australia, andtwo these also showed signals range expansions. Our resultsshow climatic fluctuations during Plio-Pleistocene generated high crypticgenetic add similar findings for diverse other groups inthe IAA.Corresponding author: Kanishka Ukuwela, School Earth Environmental Sciences,University Adelaide, Darling Building, SA 5005, Australia. E-mail: kanishkauku@yahoo.comKanishka Sciences, University Adelaide,Darling kanishkauku@yahoo.comAnslem Amphibia Reptile research Organization Sri Lanka, 15/1, Dolosbage Rd.,Gampola, Lanka. kalds@sltnet.lkMumpuni, Museum Zoology Bogor, Puslit Biology-LIPI, Cibinong, Indonesia. mumpuni@lipi.go.idBryan Venom Evolution Laboratory, Biological Queensland,Brisbane, QLD 4072, bgfry@uq.edu.auKate DarlingBuilding, kate.sanders@adelaide.edu.au