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DNA evidence for morphological and cryptic Cenozoic speciations in the Anaspididae, 'living fossils' from the Triassic
Citation
Jarman, SN and Elliott, NG, DNA evidence for morphological and cryptic Cenozoic speciations in the Anaspididae, 'living fossils' from the Triassic, Journal of Evolutionary Biology, 13, (4) pp. 624-633. ISSN 1010-061X (2000) [Refereed Article]
DOI: doi:10.1046/j.1420-9101.2000.00207.x
Abstract
The speciation history of Anaspides tasmaniae (Crustacea: Malacostraca) and its close relatives (family Anaspididae) was studied by phylogenetic and molecular clock analyses of mitochondrial DNA sequences. The phylogenetic analyses revealed that the Anaspides morphotype conceals at least three cryptic species belonging to different parts of its range. The occurrence of multiple cryptic phylogenetic species within one morphological type shows that substantial genetic evolution has occurred independently of morphological evolution. Molecular clock dating of the speciation events that generated both the cryptic and the morphological species of Anaspididae indicated continuous speciation within this group since the Palaeocene ~55 million years ago. This relatively constant rate of recent morphological and cryptic speciation within the Anaspididae suggests that the speciation rate in this group does not correlate with its low extinction rate or morphological conservatism.
Item Details
Item Type: | Refereed Article |
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Research Division: | Biological Sciences |
Research Group: | Genetics |
Research Field: | Molecular evolution |
Objective Division: | Environmental Management |
Objective Group: | Marine systems and management |
Objective Field: | Marine biodiversity |
UTAS Author: | Jarman, SN (Dr Simon Jarman) |
ID Code: | 20091 |
Year Published: | 2000 |
Web of Science® Times Cited: | 49 |
Deposited By: | IASOS |
Deposited On: | 2000-08-01 |
Last Modified: | 2011-08-04 |
Downloads: | 0 |
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