Extensive sympatry, cryptic diversity and introgression throughout the Indo-Pacific distribution of two coral species complexes

Latest version published on Aug 8, 2018
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The identification of species is one of the most basic, and yet critically important, issues in biology with far-reaching potential implications for fields such as biodiversity conservation, population ecology and epidemiology. Morphology has long been the primary tool biologists have used to categorize life. However, we now know that a significant portion of natural diversity is morphologically hidden, and therefore, we must integrate nonmorphological tools into the description of biodiversity. Here, we demonstrate the utility of multilocus population genetic data for identifying and characterizing cryptic species complexes, even when species share large amounts of genetic variability. Specifically, we have used DNA sequence data from 12 genomic regions to characterize two widespread species complexes in the coral genus Acropora: A. cytherea and A. hyacinthus. These two morphospecies have each been sampled from 5 to 7 locations throughout their Indo-Pacific distributions, and with the use of structure and hierarchical clustering, we demonstrate the presence of at least six widespread cryptic species within these two morphospecies complexes. After identifying cryptic lineages, we then utilize the genetic data to examine the history of introgressive hybridization within and between these morphospecies complexes. Our data indicate that these two complexes form a global syngameon with consistent patterns of introgression between species across large geographic distributions.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 20 records.

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Versions

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How to cite

Researchers should cite this work as follows:

Southwestern Pacific OBIS (2015). Extensive sympatry, cryptic diversity and introgression throughout the geographic distribution of two coral species complexes. Southwestern Pacific OBIS, National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, 20 records, Online http://nzobisipt.niwa.co.nz/resource.do?r=smpatry_of_coral released on April 7, 2015.

Rights

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This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

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Keywords

Occurrence; Specimen

Contacts

Who created the resource:

Kevin Mackay
Marine Database Manager
NIWA NZ

Who can answer questions about the resource:

Jason Ladner
Department of Biology
Standford University Hopkins Marine Station US

Who filled in the metadata:

Kevin Mackay
Marine Database Manager
NIWA NZ

Who else was associated with the resource:

Author
Jason T. Ladner
Department of Biology
Standford University Hopkins Marine Station US
Author
Stephen R. Palumbi
Department of Biology
Standford University Hopkins Marine Station US

Geographic Coverage

Indo-Pacific region

Bounding Coordinates South West [-19.16, -169.655], North East [7.908, 39.11]

Taxonomic Coverage

Two widespread species complexes in the coral genus Acropora

Species  Acropora cytherea,  Acropora hyacinthus

Bibliographic Citations

  1. LADNER, J. T. and PALUMBI, S. R. (2012), Extensive sympatry, cryptic diversity and introgression throughout the geographic distribution of two coral species complexes. Molecular Ecology, 21: 2224–2238. doi: 10.1111/j.1365-294X.2012.05528.x

Additional Metadata

marine, harvested by iOBIS

Alternative Identifiers https://nzobisipt.niwa.co.nz/resource?r=smpatry_of_coral