ANiknejad
commented
8 years ago Thank you, Chris, so far I only recorded the broad possible homology between arthropod head and tardigrade body
Open cmungall opened 8 years ago
ANiknejad
commented
8 years ago Thank you, Chris, so far I only recorded the broad possible homology between arthropod head and tardigrade body
ANiknejad
commented
6 years ago Following discussion with Marc RR @marcrr now this annotation is corrected to Tardigrada, see the commit above
"Our data suggest that nearly the entire tardigrade body axis is homologous to just the head region of arthropods."
...well, @marcrr actually I am still wondering if the annotation should not be maintained on UBERON:0000468|UBERON:0000033" "multi-cellular organism|head" 88770 "Panarthropoda"
because arthropoda head and body of tardigrada are then homologous, and the common ancestor to both arthropoda and tardigrada is Panarthropoda. So far it is the way we build our homology statements, please let me know if I am missing something here
ANN March 2018, annotation on Panarthropoda would be correct with "tardigrada body|head" ,I guess
ANiknejad
commented
6 years ago hi Chris @cmungall
May I suggest to have 'tardigrade body' as a new class? I would help use to report the homology relationship between the head of arthropoda and the whole body of tardigrades. Or are we allowed to use
NCBITaxon:42241 ! Tardigrada
as a class, like it sounds to be the case in the example here below?
[Term] id: UBERON:6000004 name: insect head xref: FBbt:00000004 is_a: UBERON:0000033 ! head relationship: part_of NCBITaxon:50557 ! Insecta
If yes, I suggest to report the annotation
| NCBITaxon:42241, UBERON:0000033 | tardigrada, head | PMID:26776737 "Smith FW, Boothby TC, Giovannini I, Rebecchi L, Jockusch EL, Goldstein B, The Compact Body Plan of Tardigrades Evolved by the Loss of a Large Body Region. Curr Biol (2016)" | ECO:0000075 | gene expression similarity evidence | CIO:0000005 | low confidence from single evidence | 88770 | Panarthropoda | Here, we reveal molecular identities for all of the segments of a tardigrade. Based on our analysis, we conclude that tardigrades have lost a large intermediate region of the body axis-a region corresponding to the entire thorax and most of the abdomen of | bgee | ANN |
|---|
Thank you for your patience. Cheers,
Anne
Smith, F. W., Boothby, T. C., Giovannini, I., Rebecchi, L., Jockusch, E. L., & Goldstein, B. (2016). The Compact Body Plan of Tardigrades Evolved by the Loss of a Large Body Region. Current Biology, 26(2), 224–229. http://dx.doi.org/10.1016/j.cub.2015.11.059
Inferred from gene expression evidence (HOX genes)
Could be broken down into homology assertions for 5 segments; following is a recreation of Figure 4 (not sure I have permission to paste the image)
Ant, antenna; Ch, chelicera; Int, intercalary; J, jaw; L1–L4, legs; Mn, mandible; Mx1, maxilla 1; Oc, ocular; Pp, pedipalp; Sp, slime papilla.
Of course, the homology of the arthropod head is a contentious issue, not sure we should go near this in Uberon, we need a revived PAAO (Pan Arthropod Anatomy Ontology) here. cc @dosumis.