Just because the shoe fits doesn't mean you should wear it: complex evolutionary patterns in the reef fish genus Naso

Horne, John B., Van Herwerden, Lynne, and Choat, J. Howard (2011) Just because the shoe fits doesn't mean you should wear it: complex evolutionary patterns in the reef fish genus Naso. In: Abstracts from Society for Integrative and Comparative Biology Annual Meeting, p. 1. From: Society for Integrative and Comparative Biology Annual Meeting, 3-7 January 2011, Salt Lake City, UT, USA.

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Abstract

Some Indo-Pacific coral reef fish species have been reported to have multiple sympatric lineages sometimes called non-geographic or temporal clades. To date, these patterns are only found in non-recombining mtDNA but occur across different taxa in several families. They appear to belong primarily to widespread species with high dispersal potentials. However, notwithstanding the number of recent case studies that feature non-geographic clades, the biological significance of this pattern is still unclear. At one extreme, these parallel lineages may be previously isolated populations that are currently admixed, or cryptic species existing in sympatry. At the other extreme, the divergence between these lineages could be no more than what is expected to arise in a large panmictic population over time. Here I present a comparative phylogeography of five unicornfish congeners, all exhibiting non-geographic population structuring, and conclude that one explanation does not fit all.

Item ID: 18105
Item Type: Conference Item (Abstract / Summary)
Date Deposited: 21 Feb 2012 00:33
FoR Codes: 06 BIOLOGICAL SCIENCES > 0604 Genetics > 060401 Anthropological Genetics @ 100%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960899 Flora, Fauna and Biodiversity of Environments not elsewhere classified @ 100%
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