Title |
Dynamic expression of ancient and novel molluscan shell genes during ecological transitions
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Published in |
BMC Ecology and Evolution, September 2007
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DOI | 10.1186/1471-2148-7-160 |
Pubmed ID | |
Authors |
Daniel J Jackson, Gert Wörheide, Bernard M Degnan |
Abstract |
The Mollusca constitute one of the most morphologically and ecologically diverse metazoan phyla, occupying a wide range of marine, terrestrial and freshwater habitats. The evolutionary success of the molluscs can in part be attributed to the evolvability of the external shell. Typically, the shell first forms during embryonic and larval development, changing dramatically in shape, colour and mineralogical composition as development and maturation proceeds. Major developmental transitions in shell morphology often correlate with ecological transitions (e.g. from a planktonic to benthic existence at metamorphosis). While the genes involved in molluscan biomineralisation are beginning to be identified, there is little understanding of how these are developmentally regulated, or if the same genes are operational at different stages of the mollusc's life. |
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Germany | 2 | 2% |
France | 2 | 2% |
Australia | 1 | <1% |
Brazil | 1 | <1% |
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Russia | 1 | <1% |
Other | 1 | <1% |
Unknown | 107 | 88% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 26 | 21% |
Student > Ph. D. Student | 21 | 17% |
Student > Master | 11 | 9% |
Student > Doctoral Student | 9 | 7% |
Professor | 9 | 7% |
Other | 25 | 20% |
Unknown | 21 | 17% |
Readers by discipline | Count | As % |
---|---|---|
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Biochemistry, Genetics and Molecular Biology | 13 | 11% |
Earth and Planetary Sciences | 7 | 6% |
Environmental Science | 5 | 4% |
Engineering | 3 | 2% |
Other | 5 | 4% |
Unknown | 22 | 18% |