File:Vertebra ossification sequence.jpg
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Summary of ossification sequences in the first 11 mammalian vertebral elements
For each taxon, circles indicate centra, and squares indicate left and right neural arches.
Colours represent the order of ossification.
Hox expression boundaries in the mouse[1] and vertebral segment identity are shown at right. Note the conserved timing of V7 centrum ossification across mammals, including sloths, and the overlap in Hox5-6 expression in the V6–V9 region of the sloth neck.
- bradypus - three-toed sloths are the only members of this genus
- dasypus - armadillo genus in the Dasypodidae family
- Links: vertebra | Axial Skeleton | Homeobox
Reference
Hautier L, Weisbecker V, Sánchez-Villagra MR, Goswami A & Asher RJ. (2010). Skeletal development in sloths and the evolution of mammalian vertebral patterning. Proc. Natl. Acad. Sci. U.S.A. , 107, 18903-8. PMID: 20956304 DOI.
Copyright
Proceedings National Academy of Sciences (PNAS) Liberalization of PNAS copyright policy: Noncommercial use freely allowed Note original Author should be contacted for permission to reuse for Educational purposes. See also PNAS Author Rights and Permission FAQs
- Cozzarelli NR, Fulton KR, Sullenberger DM. Liberalization of PNAS copyright policy: noncommercial use freely allowed. Proc Natl Acad Sci U S A. 2004 Aug 24;101(34):12399. PMID15314225 "Our guiding principle is that, while PNAS retains copyright, anyone can make noncommercial use of work in PNAS without asking our permission, provided that the original source is cited."
Original file name: Fig. 4. http://www.pnas.org/content/107/44/18903/F4.expansion.html
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:51, 8 November 2010 | | 651 × 800 (97 KB) | S8600021 (talk | contribs) | ==Summary of ossification sequences in the first 11 mammalian vertebral elements== For each taxon, circles indicate centra, and squares indicate left and right neural arches. Colours represent the order of ossification. Hox expression boundaries in t |
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