Molecular phylogeny and evolution of the cone snails (Gastropoda, Conoidea)

Type Article
Date 2014-09
Language English
Author(s) Puillandre N.1, Bouchet P.1, Duda T. F., Jr.2, 3, 4, Kauferstein S.5, Kohn A. J.6, Olivera B. M.7, Watkins M.8, Meyer C.9
Affiliation(s) 1 : UPMC MNHN EPHE, ISyEB Inst, Dept Systemat & Evolut, Museum Natl Hist Nat,UMR CNRS 7205, F-75231 Paris, France.
2 : Univ Michigan, Dept Ecol & Evolutionary Biol, Ann Arbor, MI 48109 USA.
3 : Univ Michigan, Museum Zool, Ann Arbor, MI 48109 USA.
4 : Smithsonian Trop Res Inst, Balboa, Ancon, Panama.
5 : Goethe Univ Frankfurt, Inst Legal Med, D-60596 Frankfurt, Germany.
6 : Univ Washington, Dept Biol, Seattle, WA 98195 USA.
7 : Univ Utah, Dept Biol, Salt Lake City, UT 84112 USA.
8 : Univ Utah, Dept Pathol, Salt Lake City, UT 84112 USA.
9 : Smithsonian Inst, Natl Museum Nat Hist, Dept Invertebrate Zool, Washington, DC 20013 USA.
Source Molecular Phylogenetics And Evolution (1055-7903) (Academic Press Inc Elsevier Science), 2014-09 , Vol. 78 , P. 290-303
DOI 10.1016/j.ympev.2014.05.023
WOS© Times Cited 134
Keyword(s) Ancestral state reconstruction, Conidae, Conus, COI, 16SrRNA, 12SrRNA

We present a large-scale molecular phylogeny that includes 320 of the 761 recognized valid species of the cone snails (Conus), one of the most diverse groups of marine molluscs, based on three mitochondrial genes (COI, 16S rDNA and 12S rDNA). This is the first phylogeny of the taxon to employ concatenated sequences of several genes, and it includes more than twice as many species as the last published molecular phylogeny of the entire group nearly a decade ago. Most of the numerous molecular phylogenies published during the last 15 years are limited to rather small fractions of its species diversity. Bayesian and maximum likelihood analyses are mostly congruent and confirm the presence of three previously reported highly divergent lineages among cone snails, and one identified here using molecular data. About 85% of the species cluster in the single Large Major Cade; the others are divided between the Small Major Cade (similar to 12%), the Conus califomicus lineage (one species), and a newly defined clade (similar to 3%). We also define several subclades within the Large and Small major clades, but most of their relationships remain poorly supported. To illustrate the usefulness of molecular phylogenies in addressing specific evolutionary questions, we analyse the evolution of the diet, the biogeography and the toxins of cone snails. All cone snails whose feeding biology is known inject venom into large prey animals and swallow them whole. Predation on polychaete worms is inferred as the ancestral state, and diet shifts to molluscs and fishes occurred rarely. The ancestor of cone snails probably originated from the Indo-Pacific; rather few colonisations of other biogeographic provinces have probably occurred. A new classification of the Conidae, based on the molecular phylogeny, is published in an accompanying paper.

Full Text
File Pages Size Access
14 3 MB Access on demand
376 KB Access on demand
7 273 KB Access on demand
28 KB Access on demand
18 KB Access on demand
15 KB Access on demand
2 25 KB Access on demand
2 195 KB Access on demand
Author's final draft 44 1 MB Open access
Top of the page