Cryptic diversity in coastal Australasia: a morphological and mitonuclear genetic analysis of habitat-forming sibling species


Rius, Marc and Teske, Peter R. (2013) Cryptic diversity in coastal Australasia: a morphological and mitonuclear genetic analysis of habitat-forming sibling species Zoological Journal of the Linnean Society, 168, (3), pp. 597-611. (doi:10.1111/zoj.12036).

Download

Full text not available from this repository.

Description/Abstract

Cryptic diversity represents a major challenge to the accurate assessment of biodiversity, but the combined use of genetic and morphological analyses has proven to be a powerful approach to detect it. This is especially important for groups for which genetic information is not yet available. Here, we studied the highly conspicuous habitat-forming Pyura stolonifera species complex (Tunicata), which, as has recently been revealed, shows surprising levels of cryptic diversity, but whose systematics and biogeographical patterns in Australasia nonetheless remain poorly understood. We first present detailed taxonomic information of all the species associated with the P.?stolonifera species complex. We then proceed to describe the results of an exhaustive survey that included south-east Australia, Tasmania, and New Zealand. Subsequently, we present morphological and mitonuclear genetic analysis of two unresolved lineages that comprise the species Pyura praeputialis and a species that is formally described here (Pyura doppelgangera sp. nov.). Although the ranges of these two species overlap on mainland Australia, we found no sites at which both species live in sympatry, and there was no morphological or genetic evidence of hybridization. Taken together, the present study illustrates the usefulness of a combined morphogenetic approach in unravelling overlooked marine diversity in a relatively well-studied region.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1111/zoj.12036
ISSNs: 0024-4082 (print)
Keywords: adenine nucleotide transporter (ANT) intron, ascidiacea, cytochrome c oxidase subunit I (COI), phylogeny, pyuridae
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QH Natural history > QH426 Genetics
Organisations: Ocean Biochemistry & Ecosystems
ePrint ID: 354663
Date :
Date Event
8 July 2013e-pub ahead of print
July 2013Published
Date Deposited: 17 Jul 2013 09:30
Last Modified: 17 Apr 2017 15:15
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/354663

Actions (login required)

View Item View Item