Title |
The Hox genes Ultrabithorax and abdominal-A specify three different types of abdominal appendage in the springtail Orchesella cincta (Collembola)
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Published in |
EvoDevo, January 2014
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DOI | 10.1186/2041-9139-5-2 |
Pubmed ID | |
Authors |
Barbora Konopova, Michael Akam |
Abstract |
In Drosophila and many other insects, the Hox genes Ultrabithorax (Ubx) and abdominal-A (abd-A) suppress limb formation on most or all segments of the abdomen. However, a number of basal hexapod lineages retain multiple appendages on the abdomen. In the collembolans or springtails, three abdominal segments develop specialized organs that originate from paired appendage primordia which fuse at the midline: the first abdominal segment bears the collophore (ventral tube), involved in osmoregulation; the fourth segment bears the furca, the leaping organ, and the third segment bears the retinaculum, which retains the furca at rest. Ubx and abd-A are known to be expressed in the springtail abdomen, but what role they play in specifying these distinct abdominal appendages is not known. This is largely because no genetic model has been established in collembolans or any other non-insect hexapod. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United Kingdom | 3 | 60% |
Unknown | 2 | 40% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 5 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Germany | 1 | 2% |
France | 1 | 2% |
Norway | 1 | 2% |
Australia | 1 | 2% |
Brazil | 1 | 2% |
United Kingdom | 1 | 2% |
New Zealand | 1 | 2% |
Japan | 1 | 2% |
United States | 1 | 2% |
Other | 0 | 0% |
Unknown | 46 | 84% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 12 | 22% |
Researcher | 9 | 16% |
Student > Bachelor | 9 | 16% |
Professor > Associate Professor | 4 | 7% |
Student > Doctoral Student | 3 | 5% |
Other | 10 | 18% |
Unknown | 8 | 15% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 33 | 60% |
Biochemistry, Genetics and Molecular Biology | 8 | 15% |
Environmental Science | 1 | 2% |
Veterinary Science and Veterinary Medicine | 1 | 2% |
Social Sciences | 1 | 2% |
Other | 0 | 0% |
Unknown | 11 | 20% |