Reference health

Expressed sequence tag analysis in Cycas, the most primitive living seed plant

https://doi.org/10.1186/gb-2003-4-12-r78
CiteStamped reference-health badge
1 of 51 checkable references need attention · checked 2026-07-23

At the dated check, the references listed below either did not resolve in Crossref or DataCite, or carried a retraction notice. Each one is shown with the registry record that put it there.

10 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.

References needing attention

does not resolve to a known work10.2307/2442720
The 50 checked references that resolve
resolves10.1126/science.164.3877.295
Cycads: Fossil Evidence of Late Paleozoic Origin
resolves10.1016/0034-6667(89)90044-4
A review of fossil cycad megasporophylls, with new evidence of Crossozamia pomel and its associated leaves from the lower permian of Taiyuan, China
resolves10.2307/2399901
A Reevaluation of Seed Plant Phylogeny
resolves10.3732/ajb.89.10.1670
Phylogeny of seed plants based on evidence from eight genes
resolves10.2307/2807216
Cladistics of the Spermatophyta
resolves10.1016/S0031-9422(00)86018-5
α-Amino-β-methylaminopropionic acid, a new amino acid from seeds of Cycas circinalis
resolves10.1126/science.3603037
Guam Amyotrophic Lateral Sclerosis-Parkinsonism-Dementia Linked to a Plant Excitant Neurotoxin
resolves10.1007/BF02860136
Toxicity of cycads
resolves10.1016/0031-9422(92)83700-9
Quantification of the neurotoxin 2-amino-3-(methylamino)-propanoic acid (BMAA) in cycadales
resolves10.1016/S0378-8741(02)00170-8
The cycad neurotoxic amino acid, ß-N-methylamino-l-alanine (BMAA), elevates intracellular calcium levels in dissociated rat brain cells
resolves10.1038/24066
Glutamate-receptor genes in plants
resolves10.1104/pp.124.4.1615
Arabidopsis Mutants Resistant to S(+)-β-Methyl-α, β-Diaminopropionic Acid, a Cycad-Derived Glutamate Receptor Agonist
resolves10.1007/BF00989421
Genome size in gymnosperms
resolves10.1006/anbo.1998.0764
Nuclear DNA Amounts in Gymnosperms
resolves10.1038/35048692
Analysis of the genome sequence of the flowering plant Arabidopsis thaliana
resolves10.1016/S1369-5266(02)00235-2
How can we deliver the large plant genomes? Strategies and perspectives
resolves10.1104/pp.010788
Plant Systematics in the Age of Genomics
resolves10.1016/S0092-8674(01)00382-8
The First Plant Genome
resolves10.1126/science.1068275
A Draft Sequence of the Rice Genome ( <i>Oryza sativa</i> L. ssp. <i>japonica</i> )
resolves10.1126/science.1068037
A Draft Sequence of the Rice Genome ( <i>Oryza sativa</i> L. ssp. <i>indica</i> )
resolves10.1007/s00114-002-0308-0
Molecular phylogeny of cycads inferred from rbcL sequences
resolves10.2307/2399221
Phylogenetic Analysis of Seed Plants and the Origin of Angiosperms
resolves10.1093/jat/13.3.169
Quantification of the Putative Neurotoxin 2-Amino-3-(methylamino)propanoic Acid (BMAA) in Cycadales: Analysis of the Seeds of Some Members of the Family Cycadaceae
resolves10.1016/S1360-1385(03)00190-0
Cycads: evolutionary innovations and the role of plant-derived neurotoxins
resolves10.1073/pnas.1132171100
Apparent homology of expressed genes from wood-forming tissues of loblolly pine ( <i>Pinus taeda</i> L.) with <i>Arabidopsis thaliana</i>
resolves10.1023/A:1010652003395
Functional genomics and cell wall biosynthesis in loblolly pine
resolves10.1038/35074138
CONSTANS mediates between the circadian clock and the control of flowering in Arabidopsis
resolves10.1016/0092-8674(95)90288-0
The CONSTANS gene of arabidopsis promotes flowering and encodes a protein showing similarities to zinc finger transcription factors
resolves10.1016/S0167-4781(98)00119-5
Homeoboxes in plant development
resolves10.1016/S0092-8674(00)81651-7
Distinct Mechanisms Promote Polarity Establishment in Carpels of Arabidopsis
resolves10.1016/S0960-9822(01)00392-X
Establishment of polarity in lateral organs of plants
resolves10.1093/emboj/17.1.170
AGO1 defines a novel locus of Arabidopsis controlling leaf development
resolves10.1016/S0962-8924(01)02091-8
COP9 signalosome revisited: a novel mediator of protein degradation
resolves10.1016/S0960-9822(02)00775-3
The COP9 signalosome
resolves10.1104/pp.125.1.77
Weaving the Complex Web of Signal Transduction
resolves10.1093/oxfordjournals.molbev.a004165
Phylogenetic and Expression Analysis of the Glutamate-Receptor–Like Gene Family in Arabidopsis thaliana
resolves10.1093/jexbot/51.347.985
Cysteine synthase (O-acetylserine (thiol) lyase) substrate specificities classify the mitochondrial isoform as a cyanoalanine synthase
resolves10.1093/jexbot/53.368.439
Modulation of cyanoalanine synthase and O‐acetylserine (thiol) lyases A and B activity by β‐substituted alanyl and anion inhibitors
resolves10.1046/j.1471-4159.2002.00976.x
Isolation of various forms of sterol β‐<scp>d</scp>‐glucoside from the seed of <i>Cycas circinalis</i>: neurotoxicity and implications for ALS‐parkinsonism dementia complex
resolves10.1101/gad.13.23.3160
INNER NO OUTER regulates abaxial- adaxial patterning in Arabidopsis ovules
resolves10.1126/science.1072831
Plant Development: Regulation by Protein Degradation
resolves10.1105/tpc.4.12.1507
COP9: a new genetic locus involved in light-regulated development and gene expression in arabidopsis.
resolves10.1111/j.1399-3054.1973.tb04802.x
Chlorophyll Formation in the Dark I. Chlorophyll in Pine Seedlings
resolves10.1104/pp.111.2.627
Developmental and Light-Regulated Expression of Individual Members of the Light-Harvesting Complex b Gene Family in Pinus palustris
resolves10.1126/science.292.5521.1486b
The Identity of Plant Glutamate Receptors
resolves10.1016/S1369-5266(00)00068-6
Unraveling plant metabolism by EST analysis
resolves10.1093/nar/gkg075
Sputnik: a database platform for comparative plant genomics
resolves10.1016/S0022-2836(05)80360-2
Basic local alignment search tool
resolves10.1101/gr.8.3.186
Base-Calling of Automated Sequencer Traces Using <i>Phred.</i> II. Error Probabilities
resolves10.1101/gr.8.3.175
Base-Calling of Automated Sequencer Traces Using<i>Phred.</i> I. Accuracy Assessment
The 10 references without a DOI — listed, not checked
no DOI — not checkedNorstog KJ, Nicholls TJ: The Biology of the Cycads. 1997, Ithaca, NY: Cornell University Press
no DOI — not checkedChamberlain C: The Living Cycads. 1919, Chicago: University of Chicago Press
no DOI — not checkedKurland LT: An appraisal of the neurotoxicity of cycad and the etiology of amotrophic lateral sclerosis on Guam. Fed Proc. 1972, 31: 1540-1543.
no DOI — not checkedSeawright AA, Ng JC, Oelrichs PB, Sani Y, Nolan CC, Lister AT, Holton J, Ray DE, Osborne R: Recent toxicity studies in animals using chemicals derived from cycads. In Biology and Conservation of Cycads - Proceedings of the Fourth International Conference on Cycad Biology 1996. 1999, Beijing: International Academic Publishers
no DOI — not checkedStevenson D: Morphology and systematics of the Cycadales. Mem NY Bot Garden. 1990, 57: 8-55.
no DOI — not checkedSputnik Cycas rumphii. [http://mips.gsf.de/proj/sputnik/cycad]
no DOI — not checkedIndex of full-length sequences. [http://genomics.nybg.org/sequences/full_length]
no DOI — not checkedFoster AS, Gifford EM: Comparative Morphology of Vascular Plants. 1974, San Francisco: WH Freeman, 2
no DOI — not checkedVecScreen. [http://www.ncbi.nlm.nih.gov/VecScreen/UniVec.html]
no DOI — not checkedSlater GSC: Algorithms for the Analysis of ESTs. PhD thesis. 2000, University of Cambridge
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 2026-07-23 — 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/10.1186/gb-2003-4-12-r78"><img src="https://citestamp.com/citestamped/10.1186/gb-2003-4-12-r78/badge.svg" alt="CiteStamped reference-health badge" width="460" height="64"></a>
[![CiteStamped reference-health badge](https://citestamp.com/citestamped/10.1186/gb-2003-4-12-r78/badge.svg)](https://citestamp.com/citestamped/10.1186/gb-2003-4-12-r78)