dc.contributor.author	Cánovas, Fernando G.
dc.contributor.author	Mota, Catarina
dc.contributor.author	Serrão, Ester
dc.contributor.author	Pearson, G. A.
dc.date.accessioned	2012-03-01T22:02:10Z
dc.date.available	2012-03-01T22:02:10Z
dc.date.issued	2011-12-21
dc.date.updated	2012-03-01T20:02:20Z
dc.description.abstract	Understanding the processes driving speciation in marine ecosystems remained a challenge until recently, due to the unclear nature of dispersal boundaries. However, recent evidence for marine adaptive radiations and ecological speciation, as well as previously undetected patterns of cryptic speciation is overturning this view. Here, we use multi-gene phylogenetics to infer the family-level evolutionary history of Fucaceae (intertidal brown algae of the northern Pacific and Atlantic) in order to investigate recent and unique patterns of radiative speciation in the genus Fucus in the Atlantic, in contrast with the mainly monospecific extant genera. Results We developed a set of markers from 13 protein coding genes based on polymorphic cDNA from EST libraries, which provided novel resolution allowing estimation of ancestral character states and a detailed reconstruction of the recent radiative history. Phylogenetic reconstructions yielded similar topologies and revealed four independent trans-Arctic colonization events by Fucaceae lineages, two of which also involved transitions from hermaphroditism to dioecy associated with Atlantic invasions. More recently, reversion of dioecious ancestral lineages towards hermaphroditism has occurred in the genus Fucus, particularly coinciding with colonization of more extreme habitats. Novel lineages in the genus Fucus were also revealed in association with southern habitats. These most recent speciation events occurred during the Pleistocene glaciations and coincided with a shift towards selfing mating systems, generally southward shifts in distribution, and invasion of novel habitats. Conclusions Diversification of the family occurred in the Late-Mid Miocene, with at least four independent trans-Artic lineage crossings coincident with two reproductive mode transitions. The genus Fucus arose in the Pliocene but radiated within a relatively short time frame about 2.5 million years ago. Current species distributions of Fucus suggest that climatic factors promoted differentiation between the two major clades, while the recent and rapid species radiation in the temperate clade during Pleistocene glacial cycles coincided with several potential speciation drivers.	por
dc.description.version	info:eu-repo/semantics/publishedVersion
dc.identifier.citation	BMC Evolutionary Biology. 2011 Dec 21;11(1):371	por
dc.identifier.doi	http://dx.doi.org/10.1186/1471-2148-11-371
dc.identifier.other	AUT: ESE00527;
dc.identifier.uri	http://hdl.handle.net/10400.1/920
dc.language.iso	eng	por
dc.language.rfc3066	eng
dc.peerreviewed	yes	por
dc.rights.holder	Canovas et al.; licensee BioMed Central Ltd.
dc.title	Driving south: a multi-gene phylogeny of the brown algal family Fucaceae reveals relationships and recent drivers of a marine radiation	por
dc.type	journal article
dspace.entity.type	Publication
person.familyName	Mota
person.familyName	Serrao
person.familyName	Pearson
person.givenName	Catarina
person.givenName	Ester A.
person.givenName	Gareth Anthony
person.identifier	C-6686-2012
person.identifier	113536
person.identifier.ciencia-id	5B13-B26E-B1EC
person.identifier.ciencia-id	3315-9919-1A52
person.identifier.orcid	0000-0002-5440-9157
person.identifier.orcid	0000-0003-1316-658X
person.identifier.orcid	0000-0002-0768-464X
person.identifier.rid	M-4281-2013
person.identifier.rid	J-3911-2013
person.identifier.scopus-author-id	26432721100
person.identifier.scopus-author-id	7004093604
person.identifier.scopus-author-id	55916875600
rcaap.rights	openAccess	por
rcaap.type	article	por
relation.isAuthorOfPublication	13562257-7d6a-40de-9213-ed8fecf15309
relation.isAuthorOfPublication	45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication	0a10c448-c7f5-4c3b-9488-3917c707e35e
relation.isAuthorOfPublication.latestForDiscovery	0a10c448-c7f5-4c3b-9488-3917c707e35e

Driving south: a multi-gene phylogeny of the brown algal family Fucaceae reveals relationships and recent drivers of a marine radiation

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