GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Environmental response in gene expression and DNA methylation reveals factors influencing the adaptive potential of Arabidopsis lyrata
    eLife Sciences Publications, Ltd ; 2022
    In:  eLife Vol. 11 ( 2022-10-28)
    Details
    In: eLife, eLife Sciences Publications, Ltd, Vol. 11 ( 2022-10-28)
    Abstract: Understanding what factors influence plastic and genetic variation is valuable for predicting how organisms respond to changes in the selective environment. Here, using gene expression and DNA methylation as molecular phenotypes, we study environmentally induced variation among Arabidopsis lyrata plants grown at lowland and alpine field sites. Our results show that gene expression is highly plastic, as many more genes are differentially expressed between the field sites than between populations. These environmentally responsive genes evolve under strong selective constraint – the strength of purifying selection on the coding sequence is high, while the rate of adaptive evolution is low. We find, however, that positive selection on cis-regulatory variants has likely contributed to the maintenance of genetically variable environmental responses, but such variants segregate only between distantly related populations. In contrast to gene expression, DNA methylation at genic regions is largely insensitive to the environment, and plastic methylation changes are not associated with differential gene expression. Besides genes, we detect environmental effects at transposable elements (TEs): TEs at the high-altitude field site have higher expression and methylation levels, suggestive of a broad-scale TE activation. Compared to the lowland population, plants native to the alpine environment harbor an excess of recent TE insertions, and we observe that specific TE families are enriched within environmentally responsive genes. Our findings provide insight into selective forces shaping plastic and genetic variation. We also highlight how plastic responses at TEs can rapidly create novel heritable variation in stressful conditions.
    Type of Medium: Online Resource
    ISSN: 2050-084X
    URL: Article
    DOI: 10.7554/eLife.83115
    Language: English
    Publisher: eLife Sciences Publications, Ltd
    Publication Date: 2022
    detail.hit.zdb_id: 2687154-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Estimating numbers of embryonic lethals in conifers
    Springer Science and Business Media LLC ; 1992
    In:  Heredity Vol. 69, No. 4 ( 1992-10), p. 308-314
    Details
    In: Heredity, Springer Science and Business Media LLC, Vol. 69, No. 4 ( 1992-10), p. 308-314
    Type of Medium: Online Resource
    ISSN: 0018-067X , 1365-2540
    URL: Article
    DOI: 10.1038/hdy.1992.130
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 1992
    detail.hit.zdb_id: 2006446-9
    detail.hit.zdb_id: 2423-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Genetic changes in flowering and morphology in response to adaptation to a high-latitude environment in Arabidopsis lyrata
    Oxford University Press (OUP) ; 2013
    In:  Annals of Botany Vol. 111, No. 5 ( 2013-5), p. 957-968
    Details
    In: Annals of Botany, Oxford University Press (OUP), Vol. 111, No. 5 ( 2013-5), p. 957-968
    Type of Medium: Online Resource
    ISSN: 1095-8290 , 0305-7364
    URL: Article
    DOI: 10.1093/aob/mct055
    RVK:
    WA 15000
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2013
    detail.hit.zdb_id: 1461328-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Comparative gene mapping in Arabidopsis lyrata chromosomes 1 and 2 and the corresponding A. thaliana chromosome 1: recombination rates, rearrangements and centromere location
    Hindawi Limited ; 2006
    In:  Genetical Research Vol. 87, No. 2 ( 2006-04), p. 75-85
    Details
    In: Genetical Research, Hindawi Limited, Vol. 87, No. 2 ( 2006-04), p. 75-85
    Abstract: To add detail to the genetic map of Arabidopsis lyrata , and compare it with that of A. thaliana , we have developed many additional markers in the A. lyrata linkage groups, LG1 and LG2, corresponding to A. thaliana chromosome 1. We used a newly developed method for marker development for single nucleotide polymorphisms present in gene sequences, plus length differences, to map genes in an A. lyrata family, including variants in several genes close to the A. thaliana centromere 1, providing the first data on the location of an A. lyrata centromere; we discuss the implications for the evolution of chromosome 1 of A. thaliana . With our larger marker density, large rearrangements between the two Arabidopsis species are excluded, except for a large inversion on LG2. This was previously known in Capsella ; its presence in A. lyrata suggests that, like most other rearrangements, it probably arose in the A. thaliana lineage. Knowing that marker orders are similar, we can now compare homologous, non-rearranged map distances to test the prediction of more frequent crossing-over in the more inbreeding species. Our results support the previous conclusion of similar distances in the two species for A. lyrata LG1 markers. For LG2 markers, the distances were consistently, but non-significantly, larger in A. lyrata . Given the two species' large DNA content difference, the similarity of map lengths, particularly for LG1, suggests that crossing-over is more frequent across comparable physical distances in the inbreeder, A. thaliana , as predicted.
    Type of Medium: Online Resource
    ISSN: 0016-6723 , 1469-5073
    URL: Article
    DOI: 10.1017/S0016672306008020
    RVK:
    WA 15000
    Language: English
    Publisher: Hindawi Limited
    Publication Date: 2006
    detail.hit.zdb_id: 2412684-6
    detail.hit.zdb_id: 1472156-9
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Quantifying latitudinal clines to light responses in natural populations of Arabidopsis thaliana (Brassicaceae)
    Wiley ; 2002
    In:  American Journal of Botany Vol. 89, No. 10 ( 2002-10), p. 1604-1608
    Details
    In: American Journal of Botany, Wiley, Vol. 89, No. 10 ( 2002-10), p. 1604-1608
    Abstract: Evidence of adaptation in Arabidopsis thaliana (Brassicaceae) phenotypic traits has rarely been shown. We demonstrate latitudinal clines in two A. thaliana traits: hypocotyl responses to red and far‐red light. Natural populations of A. thaliana were sampled along a latitudinal gradient from southern to northern Norway. Seeds from maternal families within each population were subjected to 1 wk of constant red, far‐red, blue, white, and dark treatments. Hypocotyl lengths were measured for each maternal family within each population. Significant variability within and among populations in hypocotyl responses for the various treatments was found. There was a significant latitudinal cline in hypocotyl responses for red and far‐red treatments, with northern populations being more de‐etiolated than southern populations. These results suggest that northern populations are more responsive to red and far‐red light than southern populations. Thus, differentiation of seedling traits in natural populations of A. thaliana seems in part to be mediated by the phytochrome pathway. There was no correlation between hypocotyl responses and flowering time for any treatment. This suggests that flowering time variability and variability in hypocotyl responses may not be governed by genes shared between the pathways, such as those involved in photoreception or the circadian clock.
    Type of Medium: Online Resource
    ISSN: 0002-9122 , 1537-2197
    URL: Article
    DOI: 10.3732/ajb.89.10.1604
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2002
    detail.hit.zdb_id: 2053581-8
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Inflorescence shoot elongation, but not flower primordia formation, is photoperiodically regulated in Arabidopsis lyrata
    Oxford University Press (OUP) ; 2019
    In:  Annals of Botany Vol. 124, No. 1 ( 2019-08-02), p. 91-102
    Details
    In: Annals of Botany, Oxford University Press (OUP), Vol. 124, No. 1 ( 2019-08-02), p. 91-102
    Abstract: Photoperiod contains information about the progress of seasons. Plants use the changing photoperiod as a cue for the correct timing of important life history events, including flowering. Here the effect of photoperiod on flowering in four Arabidopsis lyrata populations originating from different latitudes was studied, as well as expression levels of candidate genes for governing the between-population differences. Methods Flowering of plants from four A. lyrata populations was studied in three different photoperiods after vernalization. Flowering development was separated into three steps: flower primordia formation, inflorescence shoot elongation and opening of the first flower. Circadian expression rhythms of the A. lyrata homologues of GIGANTEA (GI), FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 (FKF1), CONSTANS (CO) and FLOWERING LOCUS T (FT) were studied in three of the populations in the intermediate (14 h) photoperiod treatment. Key Results Most plants in all populations formed visible flower primordia during vernalization. Further inflorescence development after vernalization was strongly inhibited by short days in the northern European population (latitude 61°N), only slightly in the central European population (49°N) and not at all in the North American populations (36°N and 42°N). In the 14 h daylength, where all plants from the three southernmost populations but only 60 % of the northernmost population flowered, the circadian expression rhythm of the A. lyrata FT was only detected in the southern populations, suggesting differentiation in the critical daylength for activation of the long-day pathway. However, circadian expression rhythms of A. lyrata GI, FKF1 and CO were similar between populations. Conclusions The results indicate that in A. lyrata, transition to flowering can occur through pathways independent of long days, but elongation of inflorescences is photoperiodically regulated.
    Type of Medium: Online Resource
    ISSN: 0305-7364 , 1095-8290
    URL: Article
    DOI: 10.1093/aob/mcz035
    RVK:
    WA 15000
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2019
    detail.hit.zdb_id: 1461328-1
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Studying genetics of adaptive variation in model organisms: flowering time variation in Arabidopsis lyrata
    Springer Science and Business Media LLC ; 2005
    In:  Genetica Vol. 123, No. 1-2 ( 2005-02), p. 63-74
    Details
    In: Genetica, Springer Science and Business Media LLC, Vol. 123, No. 1-2 ( 2005-02), p. 63-74
    Type of Medium: Online Resource
    ISSN: 0016-6707 , 1573-6857
    URL: Article
    DOI: 10.1007/s10709-003-2711-7
    RVK:
    WA 15000
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2005
    detail.hit.zdb_id: 1478063-X
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    Genetic variation at marker loci and in quantitative traits in natural populations of Arabidopsis Thaliana
    Springer Science and Business Media LLC ; 1997
    In:  Heredity Vol. 79, No. 2 ( 1997-8), p. 144-152
    Details
    In: Heredity, Springer Science and Business Media LLC, Vol. 79, No. 2 ( 1997-8), p. 144-152
    Type of Medium: Online Resource
    ISSN: 0018-067X , 1365-2540
    URL: Article
    DOI: 10.1038/hdy.1997.137
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 1997
    detail.hit.zdb_id: 2006446-9
    detail.hit.zdb_id: 2423-5
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    Review of black carbon emission factors from different anthropogenic sources
    IOP Publishing ; 2023
    In:  Environmental Research Letters Vol. 18, No. 3 ( 2023-03-01), p. 033004-
    Details
    In: Environmental Research Letters, IOP Publishing, Vol. 18, No. 3 ( 2023-03-01), p. 033004-
    Abstract: Particulate black carbon (BC) affects global warming by absorbing the solar radiation, by affecting cloud formation, and by decreasing ground albedo when deposited to snow or ice. BC has also a wide variety of adverse effects on human population health. In this article we reviewed the BC emission factors (EFs) of major anthropogenic sources, i.e. traffic (incl. marine and aviation), residential combustion, and energy production. We included BC EFs measured directly from individual sources and EFs derived from ambient measurements. Each source category was divided into sub-categories to find and demonstrate systematical trends, such as the potential influence of fuel, combustion technologies, and exhaust/flue gas cleaning systems on BC EFs. Our review highlights the importance of society level emission regulation in BC emission mitigation; a clear BC emission reduction was observed in ambient studies for road traffic as well as in direct emission measurements of diesel-powered individual vehicles. However, the BC emissions of gasoline vehicles were observed to be higher for vehicles with direct fuel injection techniques (gasoline direct injection) than for vehicles with port-fueled injection, indicating potentially negative trend in gasoline vehicle fleet BC EFs. In the case of shipping, a relatively clear correlation was seen between the engine size and BC EFs so that the fuel specific BC EFs of the largest engines were the lowest. Regarding the BC EFs from residential combustion, we observed large variation in EFs, indicating that fuel type and quality as well as combustion appliances significantly influence BC EFs. The largest data gaps were in EFs of large-scale energy production which can be seen crucial for estimating global radiative forcing potential of anthropogenic BC emissions. In addition, much more research is needed to improve global coverage of BC EFs. Furthermore, the use of existing data is complicated by different EF calculation methods, different units used in reporting and by variation of results due to different experimental setups and BC measurement methods. In general, the conducted review of BC EFs is seen to significantly improve the accuracy of future emission inventories and the evaluations of the climate, air quality, and health impacts of anthropogenic BC emissions.
    Type of Medium: Online Resource
    ISSN: 1748-9326
    URL: Article
    DOI: 10.1088/1748-9326/acbb1b
    Language: Unknown
    Publisher: IOP Publishing
    Publication Date: 2023
    detail.hit.zdb_id: 2255379-4
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Genetic Basis of Inbreeding Depression in Arabis petraea
    Oxford University Press (OUP) ; 1999
    In:  Evolution Vol. 53, No. 5 ( 1999-10), p. 1354-
    Details
    In: Evolution, Oxford University Press (OUP), Vol. 53, No. 5 ( 1999-10), p. 1354-
    Type of Medium: Online Resource
    ISSN: 0014-3820
    URL: Article
    DOI: 10.2307/2640882
    RVK:
    WA 15000
    Language: Unknown
    Publisher: Oxford University Press (OUP)
    Publication Date: 1999
    detail.hit.zdb_id: 2036375-8
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...