Reference health
Genetic diversity in Cypripedium calceolus (Orchidaceae) with a focus on north-western Europe, as revealed by plastid DNA length polymorphisms
2 of 30 checkable references need attention · checked 2026-07-22
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.
15 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 work10.2307/2444471
does not resolve to a known work10.2307/2444695
The 28 checked references that resolve
resolves10.1093/oxfordjournals.molbev.a026036
Median-joining networks for inferring intraspecific phylogenies
resolves10.1111/j.1095-8339.2008.00856.x
Morphometric and population genetic analyses elucidate the origin, evolutionary significance and conservation implications of<i>Orchis</i> × <i>angusticruris</i>(<i>O. purpurea</i> × <i>O. simia</i>), a hybrid orchid new to Britain
resolves10.1006/anbo.2000.1253
Nuclear DNA Amounts in Angiosperms and their Modern Uses—807 New Estimates
resolves10.1046/j.1095-8339.2002.00036.x
Allozyme differentiation and genetic structure of the Lady's slipper (Cypripedium calceolus) island populations in north-east Poland
resolves10.2307/1222975
Silica gel: An ideal material for field preservation of leaf samples for DNA studies
resolves10.1111/j.1095-8339.2009.00965.x
Contrasting levels of genetic diversity between the historically rare orchid<i>Cypripedium japonicum</i>and the historically common orchid<i>Cypripedium macranthos</i>in South Korea
resolves10.1139/g04-063
Hypervariable plastid locus variation and intron evolution in the<i>Anacamptis palustris</i>lineage
resolves10.1007/s10592-006-9209-7
Genetic variation in time and space: the use of herbarium specimens to reconstruct patterns of genetic variation in the endangered orchid Anacamptis palustris
resolves10.1093/genetics/131.2.479
Analysis of molecular variance inferred from metric distances among DNA haplotypes: application to human mitochondrial DNA restriction data.
resolves10.1093/aob/mci017
The Effects of Nuclear DNA Content (C-value) on the Quality and Utility of AFLP Fingerprints
resolves10.1038/sj.hdy.6800399
Population genetic structure in European populations of Spiranthes romanzoffiana set in the context of other genetic studies on orchids
resolves10.1139/g01-113
Genome size and microsatellites: the effect of nuclear size on amplification potential
resolves10.1111/j.1469-8137.2007.02179.x
A spatially explicit analysis of seedling recruitment in the terrestrial orchid <i>Orchis purpurea</i>
resolves10.1111/j.1469-8137.2007.02223.x
Spatial aspects of seed dispersal and seedling recruitment in orchids
resolves10.1046/j.1469-8137.2003.00694.x
Relationship between genetic structure and seed and pollen dispersal in the endangered orchid<i>Spiranthes spiralis</i>
resolves10.1046/j.1523-1739.1998.96489.x
Identifying Populations for Conservation on the Basis of Genetic Markers
resolves10.2307/25065911
Evolution and temporal diversification of western European polyploid species complexes in
<i>Dactylorhiza</i>
(Orchidaceae)
resolves10.1093/genetics/144.3.1237
Measwring and Testing Genetic Differentiation With Ordered <i>Versus</i> Unordered Alleles
resolves10.3732/ajb.91.9.1419
<i>Dactylorhiza</i> (Orchidaceae) in European Russia: combined molecular and morphological analysis
resolves10.1111/j.1095-8339.2005.00380.x
Evolution of Dactylorhiza baltica (Orchidaceae) in European Russia: evidence from molecular markers and morphology
resolves10.2307/2446640
The tortoise and the hare: choosing between noncoding plastome and nuclear <i>Adh</i> sequences for phylogeny reconstruction in a recently diverged plant group
resolves10.1007/BF00037152
Universal primers for amplification of three non-coding regions of chloroplast DNA
resolves10.1093/nar/18.22.6531
DNA polymorphisms amplified by arbitrary primers are useful as genetic markers
The 15 references without a DOI — listed, not checked
no DOI — not checkedThe various contrivances by which orchids are fertilised by insects
no DOI — not checkedA rapid DNA isolation procedure for small quantities of fresh leaf tissue
no DOI — not checkedLady's slipper orchid
no DOI — not checkedPlastid microsatellites in Cypripedium calceolus (Orchidaceae): genetic fingerprints from herbarium specimens
no DOI — not checkedOrchid conservation genetics in the molecular age
no DOI — not checkedMolecular techniques for orchid conservation genetic studies
no DOI — not checkedHow does hybridization influence the decision making process in conservation? The genus Orchis (Orchidaceae) as a case history
no DOI — not checkedA variable minisatellite sequence in the chloroplast genome of Sorbus L
no DOI — not checkedPatterns of aspartate aminotransferase variation in relation to population size, founder effect, and phytogeographic history in Cypripedium calceolus. Proceedings of the Estonian Academy of Sciences
no DOI — not checkedHistorical data from specimens in the herbarium, National Botanic Gardens, Glasnevin, Dublin (DBN), especially on Cypripedium calceolus
no DOI — not checkedConservation genetics of rare and endangered British orchids
no DOI — not checkedMolecular techniques employed in the assessment of genetic diversity: a review focusing on orchid conservation
no DOI — not checkedArlequin: a software for population genetics data analysis
no DOI — not checkedWild orchids of Britain
no DOI — not checkedPAUP* 4·0b10: Phylogenetic analysis using parsimony (* and other methods)
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