Reference health
Symmetry Breaking and the Evolution of Development
67/67 checkable references clean · checked 2026-07-25
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
13 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 67 checked references that resolve
resolves10.1073/pnas.93.25.14279
From symmetry to asymmetry: Phylogenetic patterns of asymmetry variation in animals and their evolutionary significance
resolves10.1023/A:1006773408919
Organic Selection: Proximate Environmental Effects on the Evolution of Morphology and Behaviour
resolves10.1111/j.0014-3820.2003.tb00354.x
PERSPECTIVE: GENETIC ASSIMILATION AND A POSSIBLE EVOLUTIONARY PARADOX: CAN MACROEVOLUTION SOMETIMES BE SO FAST AS TO PASS US BY?
resolves10.1101/gad.1053803
A two-cilia model for vertebrate left-right axis specification: Figure 1.
resolves10.1017/S1464793103006298
Developmental mechanism and evolutionary origin of vertebrate left/right asymmetries
resolves10.1046/j.1525-142x.2001.003002109.x
Developmental system drift and flexibility in evolutionary trajectories
resolves10.1046/j.1525-142x.2000.00054.x
Limbs and tail as evolutionarily diverging duplicates of the main body axis
resolves10.1016/S0960-9822(98)70062-4
Embryonic axis specification in nematodes: evolution of the first step in development
resolves10.1146/annurev.genet.35.102401.090832
Conservation and Divergence in Molecular Mechanisms of Axis Formation
resolves10.1242/dev.00436
The zebrafish<i>nodal</i>-related gene<i>southpaw</i>is required for visceral and diencephalic left-right asymmetry
resolves10.1006/dbio.2000.9754
Retinoid Signaling Is Required to Complete the Vertebrate Cardiac Left/Right Asymmetry Pathway
resolves10.1016/S0960-9822(02)01222-8
FGF8 Acts as a Right Determinant during Establishment of the Left-Right Axis in the Rabbit
resolves10.1016/S0169-5347(97)01222-6
Phylotypic stage or phantom: is there a highly conserved embryonic stage in vertebrates?
resolves10.1177/154411130401500403
T<scp>he</scp> E<scp>mbryonic</scp> O<scp>rigins of</scp> L<scp>eft-</scp>R<scp>ight</scp> A<scp>symmetry</scp>
resolves10.1038/40140
Mutation of an axonemal dynein affects left–right asymmetry in inversus viscerum mice
resolves10.1038/nature00849
Determination of left–right patterning of the mouse embryo by artificial nodal flow
resolves10.1007/s00429-002-0269-2
Morphological left-right asymmetry of Hensen's node precedes the asymmetric expression of Shh and Fgf8 in the chick embryo
resolves10.1016/j.cub.2004.04.002
The T Box Transcription Factor No Tail in Ciliated Cells Controls Zebrafish Left-Right Asymmetry
resolves10.1002/1096-8628(20010715)101:4<339::AID-AJMG1442>3.0.CO;2-P
Cilia propel the embryo in the right direction
resolves10.1046/j.1525-142X.2002.02030.x
An amphioxus<i>nodal</i>gene (<i>AmphiNodal</i> ) with early symmetrical expression in the organizer and mesoderm and later asymmetrical expression associated with left–right axis formation
resolves10.1007/s00427-002-0242-3
HrNodal, the ascidian nodal-related gene, is expressed in the left side of the epidermis, and lies upstream of HrPitx
resolves10.1046/j.1525-142X.2002.02021.x
Pitx homeobox genes in<i>Ciona</i>and amphioxus show left–right asymmetry is a conserved chordate character and define the ascidian adenohypophysis
resolves10.1002/1097-0185(20000701)259:3<248::AID-AR30>3.0.CO;2-K
Cardiac looping in the chick embryo: A morphological review with special reference to terminological and biomechanical aspects of the looping process
resolves10.1046/j.1525-142X.2002.02018.x
Analyzing evolutionary patterns in amniote embryonic development*
resolves10.1046/j.1463-6395.2002.00101.x
Floor plate, glia and other support cells in the anterior nerve cord of amphioxus larvae
resolves10.1212/WNL.53.6.1260
Structural and functional brain asymmetries in human situs inversus totalis
resolves10.1016/S0168-9525(98)01641-2
TGFβ inhibitors: new and unexpected requirements in vertebrate development
resolves10.1146/annurev.ecolsys.29.1.293
POSSIBLE LARGEST-SCALE TRENDS IN ORGANISMAL EVOLUTION: Eight “Live Hypotheses”
resolves10.1016/S0092-8674(03)00511-7
Two Populations of Node Monocilia Initiate Left-Right Asymmetry in the Mouse
resolves10.1126/science.264.5159.710
Effects of Manipulated Diet on Size and Performance of Brachyuran Crab Claws
resolves10.1002/ajpa.1330940205
Hand dominance and bilateral asymmetry in the structure of the second metacarpal
resolves10.1002/ajpa.1330930102
Postcranial robusticity in <i>Homo</i>. II: Humeral bilateral asymmetry and bone plasticity
resolves10.1163/20021975-99990176
The Systematics and Taxonomy of Fiddler Crabs: A Phylogeny of the Genus Uca
resolves10.2307/1447535
Phylogenetic Systematics and Biogeography of Phallostethid Fishes (Atherinomorpha, Phallostethidae) of Northwestern Borneo, with Description of a New Species
resolves10.1086/286163
Evolution of Mirror Images by Sexually Asymmetric Mating Behavior in Hermaphroditic Snails
resolves10.1016/j.cub.2004.08.018
Body Handedness Is Directed by Genetically Determined Cytoskeletal Dynamics in the Early Embryo
resolves10.1016/S0022-5193(88)80189-9
The evolution of viviparity in reptiles: A physiological model and its ecological consequences
resolves10.1111/j.1558-5646.1991.tb04417.x
A PRELIMINARY TEST OF THE ADAPTIVE SIGNIFICANCE OF ENVIRONMENTAL SEX DETERMINATION IN REPTILES
resolves10.1038/nature02703
Evolutionary change from induced to constitutive expression of an indirect plant resistance
The 13 references without a DOI — listed, not checked
no DOI — not checkedA. S. Wilkins The Evolution of Developmental Pathways (Sinauer Sunderland MA 2002).
no DOI — not checkedH. Meinhardt, Int. J. Dev. Biol.45, 177 (2001).
no DOI — not checkedA. R. Palmer in Variation B. Hallgrímsson B. K. Hall Eds. (Academic Press New York in press).
no DOI — not checkedG. de Jong, R. H. Crozier, Nature424, 16 (2003).
no DOI — not checkedD. Duboule, in The Evolution of Developmental Mechanisms (Development, Suppl.), M. Akam, P. W. H. Holland, P. W. Ingham, G. Wray, Eds. (Company of Biologists, Cambridge, 1994), pp. 135–142.
no DOI — not checkedE. E. Ruppert, in Microscopic Anatomy of Invertebrates: Hemichordata, Chaetognatha, and Invertebrate Chordates, F. W. Harrison, E. E. Ruppert, Eds. (Wiley, New York, 1997), vol. 15, pp. 349–504.
no DOI — not checkedR. P. S. Jefferies The Ancestry of the Vertebrates (British Museum Natural History London 1986).
no DOI — not checkedP. Burighel, R. A. Cloney, in Microscopic Anatomy of Invertebrates: Hemichordata, Chaetognatha, and the Invertebrate Chordates, F. W. Harrison, E. E. Ruppert, Eds. (Wiley, New York, 1997), vol. 15, pp. 221–347.
no DOI — not checkedH. F. Nijhout, G. Davidowitz, in Developmental Instability (DI): Causes and Consequences, M. Polak, Ed. (Oxford Univ. Press, Oxford, 2003), pp. 3–13.
no DOI — not checkedJ. Crane, Zoologica (NY)52, 49 (1967).
no DOI — not checkedJ. Piaget, Rev. Suisse Zool.36, 263 (1929).
no DOI — not checkedS. A. Cook, M. P. Johnson, Evolution22, 496 (1968).
no DOI — not checkedA. Eaves W. Gallin and L. Hammond made helpful comments on early drafts; K. Witkowska and Bamfield Marine Sciences Centre librarians provided library assistance; and many colleagues offered valuable references and feedback during this paper's extended ontogeny. I acknowledge sustained research funding from National Sciences and Engineering Research Council of Canada (A7245) and sabbatical leave support from the University of Alberta.
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-25 — re-checked daily as this page is visited; titles and statuses come from Crossref and DataCite and are not part of the signed record
Embed this badge
Both snippets point at the live badge image and link back to this page. The badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.
<a href="https://citestamp.com/citestamped/10.1126/science.1103707"><img src="https://citestamp.com/citestamped/10.1126/science.1103707/badge.svg" alt="CiteStamped reference-health badge" width="460" height="64"></a>
[](https://citestamp.com/citestamped/10.1126/science.1103707)