| Title |
Head patterning and Hox gene expression in an onychophoran and its implications for the arthropod head problem
|
|---|---|
| Published in |
Development Genes and Evolution, June 2010
|
| DOI | 10.1007/s00427-010-0329-1 |
| Pubmed ID | |
| Authors |
Bo Joakim Eriksson, Noel N. Tait, Graham E. Budd, Ralf Janssen, Michael Akam |
| Abstract |
The arthropod head problem has puzzled zoologists for more than a century. The head of adult arthropods is a complex structure resulting from the modification, fusion and migration of an uncertain number of segments. In contrast, onychophorans, which are the probable sister group to the arthropods, have a rather simple head comprising three segments that are well defined during development, and give rise to the adult head with three pairs of appendages specialised for sensory and food capture/manipulative purposes. Based on the expression pattern of the anterior Hox genes labial, proboscipedia, Hox3 and Deformed, we show that the third of these onychophoran segments, bearing the slime papillae, can be correlated to the tritocerebrum, the most anterior Hox-expressing arthropod segment. This implies that both the onychophoran antennae and jaws are derived from a more anterior, Hox-free region corresponding to the proto and deutocerebrum of arthropods. Our data provide molecular support for the proposal that the onychophoran head possesses a well-developed appendage that corresponds to the anterior, apparently appendage-less region of the arthropod head. |
Mendeley readers
The data shown below were compiled from readership statistics for 65 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 2 | 3% |
| Colombia | 1 | 2% |
| Germany | 1 | 2% |
| Norway | 1 | 2% |
| Canada | 1 | 2% |
| Japan | 1 | 2% |
| United States | 1 | 2% |
| Unknown | 57 | 88% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 14 | 22% |
| Researcher | 13 | 20% |
| Student > Bachelor | 8 | 12% |
| Professor > Associate Professor | 6 | 9% |
| Student > Doctoral Student | 3 | 5% |
| Other | 11 | 17% |
| Unknown | 10 | 15% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 40 | 62% |
| Biochemistry, Genetics and Molecular Biology | 7 | 11% |
| Earth and Planetary Sciences | 5 | 8% |
| Unknown | 13 | 20% |
Attention Score in Context
This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 31 July 2017.
All research outputs
#7,855,444
of 23,815,455 outputs
Outputs from Development Genes and Evolution
#150
of 495 outputs
Outputs of similar age
#34,668
of 96,018 outputs
Outputs of similar age from Development Genes and Evolution
#2
of 3 outputs
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So far Altmetric has tracked 495 research outputs from this source. They receive a mean Attention Score of 4.3. This one is in the 38th percentile – i.e., 38% of its peers scored the same or lower than it.
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