• Corpus ID: 82493682

Conservation genetics of the species complex Cochlearia officinalis L. s.l. in Britain

@inproceedings{Gill2008ConservationGO,
  title={Conservation genetics of the species complex Cochlearia officinalis L. s.l. in Britain},
  author={Estelle Gill},
  year={2008}
}
  • E. Gill
  • Published 2008
  • Biology, Environmental Science
The genus Cochlearia is a taxonomically complex genus with a circumpolar distribution. In common with many other post-glacial colonisers it exhibits complex patterns of morphological and ecological variation. The genus has been the subject of continued taxonomic controversy, especially within the species complex C. officinalis s.l. The focus of this study was to investigate whether the three rare putative endemic Cochlearia officinalis s.l. taxa in Britain: C. micacea, C. officinalis subsp… 
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References

SHOWING 1-10 OF 193 REFERENCES
Morphology and taxonomy of the genus Cochlearia (Brassicaceae) in Northern Scandinavia
TLDR
The morphological variation between populations of Cochlearia in Northern Scandinavia has been analysed and four ecotypes are recognized, and the subspecies are kept more or less distinct due to ecological and seasonal isolating mechanisms rather than internal, reproductive barriers.
Cytogenetic studies in Cochlearia L. (Cruciferae). The origins of C. officinalis L. and C. micacea Marshall
Genome analysis has been used to investigate the evolutionary relationships of the tetraploid species in the genus Cochlearia. The results indicate that both C. officinalis L. (2n=24) and C. micacea
Cytotaxonomic studies on the Cochlearia ojJicinalis L. group from inland stations in Britain
TLDR
On the basis of the ecology and chromosome numbers of the above three species, it is suggested that C. officinalis L. sensu lato is best regarded simply as an inland ecotype of C. alpina (Bab.) Wats.
Western ukrainian Cochlearia (Brassicaceae)- : the identity of an isolated edge population
A strongly isolated population of Cochlearia in North-Western Ukraine was analysed using highly discriminating AFLP markers, to clarify the confusing taxonomy of the genus at the eastern edge of its
ISOZYMES, SPECIATION AND EVOLUTION IN THE POLYPLOID COMPLEX COCHLEARIA L. (BRASSICACEAE)
: Within the genus Cochlearia L. sect. Cochlearia three isozyme systems (aspartate aminotransferase, leucine aminopeptidase and phosphoglucomutase) have been analysed at the populational level for
Conservation genetics of the critical plant genus Euphrasia L. in Britain
TLDR
Using molecular markers to evaluate taxon limits and evolutionary processes in British Euphrasia to clarify the most appropriate approach for conservation shows that the major reproductive barrier in the group corresponds to ploidy level, with AFLP and chloroplast data both significantly differentiated between diploid and tetraploid species.
Cytogenetic studies in Cochlearia L. (Cruciferae). The chromosomal constitution of C. danica L.
TLDR
The results of this analysis suggest that C. danica has the genomic constitution A17 A 17 A27 A27 T7 T7.
Cochlearia macrorrhiza (Brassicaceae): A bridging species between Cochlearia taxa from the Eastern Alps and the Carpathians?
TLDR
Genetic differentiation within and between populations is highly structured geographically, and the AFLP data favour a former widespread distribution of C. pyrenaica in mountainous regions and a parallel evolution of high alpine taxa in the Eastern Alps and the Carpathians, respectively.
Taxonomic complexity and breeding system transitions: conservation genetics of the Epipactis leptochila complex (Orchidaceae)
TLDR
Comparisons with published data from the putative progenitor species for the autogamous taxa (the widespread, allogamous E. helleborine) suggest iterative origins of autogamy, rather than the self‐pollinating taxa all being merely mutational variants of a single autogaming lineage.
The Cardamine pratensis (Brassicaceae) group in the Iberian Peninsula: taxonomy, polyploidy and distribution
TLDR
Two diploid taxa from the Iberian Peninsula differ in several quantitative morphological characters, as well as in morphology of rhizome and basal parts of stem, and they are also distinct in AFLP markers, indicating strong genetic differentiation.
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