Title |
Gene duplication and the origins of morphological complexity in pancrustacean eyes, a genomic approach
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Published in |
BMC Ecology and Evolution, April 2010
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DOI | 10.1186/1471-2148-10-123 |
Pubmed ID | |
Authors |
Ajna S Rivera, M Sabrina Pankey, David C Plachetzki, Carlos Villacorta, Anna E Syme, Jeanne M Serb, Angela R Omilian, Todd H Oakley |
Abstract |
Duplication and divergence of genes and genetic networks is hypothesized to be a major driver of the evolution of complexity and novel features. Here, we examine the history of genes and genetic networks in the context of eye evolution by using new approaches to understand patterns of gene duplication during the evolution of metazoan genomes. We hypothesize that 1) genes involved in eye development and phototransduction have duplicated and are retained at higher rates in animal clades that possess more distinct types of optical design; and 2) genes with functional relationships were duplicated and lost together, thereby preserving genetic networks. To test these hypotheses, we examine the rates and patterns of gene duplication and loss evident in 19 metazoan genomes, including that of Daphnia pulex - the first completely sequenced crustacean genome. This is of particular interest because the pancrustaceans (hexapods+crustaceans) have more optical designs than any other major clade of animals, allowing us to test specifically whether the high amount of disparity in pancrustacean eyes is correlated with a higher rate of duplication and retention of vision genes. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United States | 3 | 3% |
Germany | 1 | <1% |
Australia | 1 | <1% |
Portugal | 1 | <1% |
United Kingdom | 1 | <1% |
Sweden | 1 | <1% |
Japan | 1 | <1% |
Iceland | 1 | <1% |
Unknown | 92 | 90% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 31 | 30% |
Researcher | 18 | 18% |
Student > Bachelor | 11 | 11% |
Student > Master | 9 | 9% |
Professor | 7 | 7% |
Other | 19 | 19% |
Unknown | 7 | 7% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 69 | 68% |
Biochemistry, Genetics and Molecular Biology | 17 | 17% |
Nursing and Health Professions | 2 | 2% |
Earth and Planetary Sciences | 2 | 2% |
Neuroscience | 2 | 2% |
Other | 4 | 4% |
Unknown | 6 | 6% |