The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approach
The definition of the axis of orientation of the synlophe is modified for the Heligmosomoidea so that one or two axes may be recognized. When two axes are present, their inclinations to the sagittal axis are different on the right and left sides, and we propose to name them right axis and left axis,...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2005-09-01
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| Series: | Parasite |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1051/parasite/2005123195 |
| _version_ | 1797427262243471360 |
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| author | Durette-Desset M.C. Digiani M.C. |
| author_facet | Durette-Desset M.C. Digiani M.C. |
| author_sort | Durette-Desset M.C. |
| collection | DOAJ |
| description | The definition of the axis of orientation of the synlophe is modified for the Heligmosomoidea so that one or two axes may be recognized. When two axes are present, their inclinations to the sagittal axis are different on the right and left sides, and we propose to name them right axis and left axis, respectively. During the course of evolution, starting from a single oblique axis (plesiomorphic state), an independent rotation of this axis on the right and left sides may bring about a double-axis state with a different inclination on both sides (derived state). When the rotation reaches 90° for both sides, the axis becomes simple once again and is superimposed to the frontal axis (most derived state). |
| first_indexed | 2024-03-09T08:41:44Z |
| format | Article |
| id | doaj.art-403f6b6521794af6a51b6992e6f8260d |
| institution | Directory Open Access Journal |
| issn | 1252-607X 1776-1042 |
| language | English |
| last_indexed | 2024-03-09T08:41:44Z |
| publishDate | 2005-09-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Parasite |
| spelling | doaj.art-403f6b6521794af6a51b6992e6f8260d2023-12-02T16:31:18ZengEDP SciencesParasite1252-607X1776-10422005-09-0112319520210.1051/parasite/2005123195parasite2005123p195The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approachDurette-Desset M.C.Digiani M.C.The definition of the axis of orientation of the synlophe is modified for the Heligmosomoidea so that one or two axes may be recognized. When two axes are present, their inclinations to the sagittal axis are different on the right and left sides, and we propose to name them right axis and left axis, respectively. During the course of evolution, starting from a single oblique axis (plesiomorphic state), an independent rotation of this axis on the right and left sides may bring about a double-axis state with a different inclination on both sides (derived state). When the rotation reaches 90° for both sides, the axis becomes simple once again and is superimposed to the frontal axis (most derived state).http://dx.doi.org/10.1051/parasite/2005123195NematodaTrichostrongylinaHeligmosomoideasynlopheaxis of orientationright axisleft axis |
| spellingShingle | Durette-Desset M.C. Digiani M.C. The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approach Parasite Nematoda Trichostrongylina Heligmosomoidea synlophe axis of orientation right axis left axis |
| title | The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approach |
| title_full | The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approach |
| title_fullStr | The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approach |
| title_full_unstemmed | The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approach |
| title_short | The axis of orientation of the synlophe in the Heligmosomoidea (Nematoda, Trichostrongylina): a new approach |
| title_sort | axis of orientation of the synlophe in the heligmosomoidea nematoda trichostrongylina a new approach |
| topic | Nematoda Trichostrongylina Heligmosomoidea synlophe axis of orientation right axis left axis |
| url | http://dx.doi.org/10.1051/parasite/2005123195 |
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