Conservation genetics of an arctic species, Saxifraga rivularis L., in Britain

Hollingsworth, Peter; Tebbitt, Mark C.; Watson, Keith J.; Gornall, R. J.

doi:10.1111/j.1095-8339.1998.tb02104.x

Cited by 11 publications

(9 citation statements)

References 37 publications

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“…The low level of within-population variation is consistent with their strongly autogamous breeding system, partly also clonality via runners in S. rivularis, and it is similar to the levels found in many other species in Svalbard (Brochmann and Steen, 1999;Brochmann et al, 2004) as well as in S. rivularis in Britain (Hollingsworth et al, 1998). The low level of among-population variation in each species may reflect bottlenecking during a single immigration event to this isolated, high-arctic archipelago, which was almost fully glaciated at the Weichselian maximum , but it cannot be excluded that the two species immigrated repeatedly from genetically depauperate source populations.…”

Section: Low Levels Of Molecular Diversitysupporting

confidence: 82%

The Saxifraga rivularis complex in Svalbard: Molecules, ploidy and morphology

Guldahl

Gabrielsen

Scheen

et al. 2005

Flora - Morphology, Distribution, Functional Ecology of Plants

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Section: Low Levels Of Molecular Diversitysupporting

confidence: 82%

The Saxifraga rivularis complex in Svalbard: Molecules, ploidy and morphology

Guldahl

Gabrielsen

Scheen

et al. 2005

Flora - Morphology, Distribution, Functional Ecology of Plants

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“…Although smaller populations showed lower levels of diversity, we would not consider that these populations are more strongly threatened by extinction, a view that is supported by the survival of these populations over several thousand years to date, probably due to the stress‐tolerance of the species and the longevity of the individuals. However, to ensure long‐term protection, conservation strategies should particularly aim at the maintenance of the whole overall diversity (Hollingsworth, 1998). Due to the strong geographical differentiation every location has its own genetic characteristics.…”

Section: Discussionmentioning

confidence: 99%

Genetic variation of Saxifraga paniculata Mill. (Saxifragaceae): molecular evidence for glacial relict endemism in central Europe

Reisch

Wingender

2003

Biological Journal of the Linnean Society

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Saxifraga paniculata Mill. is an amphi‐atlantic species that is widely distributed in the Alps but also occurs with disjunct populations in central Europe. These isolated populations are considered to be glacial relicts. In the study presented here, we analysed the genetic variation within and between populations of Saxifraga paniculata in central Europe to test whether the molecular data give evidence for the supposed relict endemism. We used RAPD analysis and the analysis of molecular variance (AMOVA) technique to investigate 30 populations of Saxifraga paniculata from different locations in central Europe and adjacent geographical areas. In the RAPD analysis, 319 fragments could be amplified of which 91.2% were polymorphic. The percentage of polymorphic bands within populations correlated significantly with population size, indicating a higher level of inbreeding in small populations. AMOVA revealed 43.60% of the variation within populations, only 15.45% between populations within locations, and 40.95% between locations. Genetic distance between locations (ΦST) correlated significantly with the geographical distance between locations, giving evidence for geographical isolation. In an UPGMA cluster analysis, based on RAPD data, the populations were grouped together according to their location. The results exhibit a strong genetic differentiation which is obviously due to genetic drift in the isolated populations. Our study therefore gives evidence for glacial relict endemism of Saxifraga paniculata in central Europe. © 2003 The Linnean Society of London, Biological Journal of the Linnean Society, 2003, 80, 11–21.

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“…Amplified fragment length polymorphism (AFLP), isozymes, simple sequence repeats (SSR), random amplified microsatellite polymorphisms (RAMP), random amplified polymorphic DNA (RAPD) and inter simple sequence repeats (ISSR) have all been used to determine genetic diversity in plant populations (Wang et al 1994;Godwin et al 1997;Hollngsworth et al 1998;Blair et al 1999;Amsellem et al 2000;Mengoni et al 2000). Microsatellites or simple sequence repeats are tandemly repeated mono-, di-, tri-, tetra-or pentanucleotide units (Sehgal et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Genetic characterization of Iranian safflower (Carthamus tinctorius) using inter simple sequence repeats (ISSR) markers

Panahi

Neghab

2013

Physiol Mol Biol Plants

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Safflower (Carthamus tinctorious L.) is valued as a source of high quality vegetable oil. 20 ISSR primers were used to assess the genetic diversity of 18 accessions of safflower collected from different geographical regions of Iran. The ISSR primers combinations revealed 57.6 % polymorphism, among 338 genetic loci amplified from the accessions. The sum of effective number of alleles and observed number of alleles were 29.76 and 36.77, respectively. To understand genetic relationships among these cultivars, Jacquards' similarity coefficient and UPGMA clustering algorithm were applied to the ISSR marker data set. ISSR markers grouped accessions into two main clusters and four sub clusters. Also, the principal coordinate analysis (PCoA) supported the cluster analysis results. The results showed these genotypes have high genetic diversity, and can be used for alternative safflower breeding program.

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Conservation genetics of an arctic species, Saxifraga rivularis L., in Britain

Cited by 11 publications

References 37 publications

The Saxifraga rivularis complex in Svalbard: Molecules, ploidy and morphology

The Saxifraga rivularis complex in Svalbard: Molecules, ploidy and morphology

Genetic variation of Saxifraga paniculata Mill. (Saxifragaceae): molecular evidence for glacial relict endemism in central Europe

Genetic characterization of Iranian safflower (Carthamus tinctorius) using inter simple sequence repeats (ISSR) markers

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