Time capsules in natural sediment archives—Tracking phytoplankton population genetic diversity and adaptation over multidecadal timescales in the face of environmental change
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Time capsules in natural sediment archives—Tracking phytoplankton population genetic diversity and adaptation over multidecadal timescales in the face of environmental change. / Ellegaard, Marianne; Godhe, Anna; Ribeiro, Sofia.
In: Evolutionary Applications, Vol. 11, No. 1, 2018, p. 11-16.Research output: Contribution to journal › Review › Research › peer-review
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TY - JOUR
T1 - Time capsules in natural sediment archives—Tracking phytoplankton population genetic diversity and adaptation over multidecadal timescales in the face of environmental change
AU - Ellegaard, Marianne
AU - Godhe, Anna
AU - Ribeiro, Sofia
N1 - Special Issue: Resurrection Ecology
PY - 2018
Y1 - 2018
N2 - Undisturbed records of resting stages produced in the past and stored in coastal sediments are very valuable to science, because they may provide unique insights into past evolutionary and ecological trajectories. Within marine phytoplankton, multidecadal time series of monoclonal strains germinated from resting stages have been established for diatoms (Skeletonema marinoi) and dinoflagellates (Pentapharsodinium dalei), spanning ca. a century. Phenotypic and genotypic analyses of these time series have revealed effects of past environmental changes on population genetic structure. Future perspectives include direct comparisons of phenotypes and genotypic data of populations, for example, by genomewide assays that can correlate phenotypic trends with genotypes and allele frequencies in temporally separated strains. Besides their usefulness as historical records, “seed” banks of phytoplankton resting stages also have the potential to provide an inoculum that influences present populations through “dispersal from the past” (the storage effect) and are important for adaptation to future environments through their standing genetic diversity.
AB - Undisturbed records of resting stages produced in the past and stored in coastal sediments are very valuable to science, because they may provide unique insights into past evolutionary and ecological trajectories. Within marine phytoplankton, multidecadal time series of monoclonal strains germinated from resting stages have been established for diatoms (Skeletonema marinoi) and dinoflagellates (Pentapharsodinium dalei), spanning ca. a century. Phenotypic and genotypic analyses of these time series have revealed effects of past environmental changes on population genetic structure. Future perspectives include direct comparisons of phenotypes and genotypic data of populations, for example, by genomewide assays that can correlate phenotypic trends with genotypes and allele frequencies in temporally separated strains. Besides their usefulness as historical records, “seed” banks of phytoplankton resting stages also have the potential to provide an inoculum that influences present populations through “dispersal from the past” (the storage effect) and are important for adaptation to future environments through their standing genetic diversity.
KW - diatom
KW - dinoflagellate
KW - environmental change
KW - marine
KW - population genetics
KW - resting stage
KW - sediment record
U2 - 10.1111/eva.12513
DO - 10.1111/eva.12513
M3 - Review
C2 - 29302268
AN - SCOPUS:85029001407
VL - 11
SP - 11
EP - 16
JO - Evolutionary Applications
JF - Evolutionary Applications
SN - 1752-4563
IS - 1
ER -
ID: 194908201