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Sökning: WFRF:(Kersten Birgit)

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1.
  • 2019
  • Tidskriftsartikel (refereegranskat)
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2.
  • Falk Nilsson, Eva, et al. (författare)
  • 1.2 Cognition and learning.
  • 2002
  • Ingår i: European Journal of Dental Education. - : Wiley. - 1396-5883 .- 1600-0579. ; 6:Suppl 3, s. 27-32
  • Tidskriftsartikel (refereegranskat)abstract
    • This theme is concerned with the relevance and efficacy of educational methods adopted in dental schools while recognizing the influence of geopolitical issues in different countries and regions. Particular emphasis will be given to examples of best practices and innovations. Cognition and learning are dealt with in many different research areas such as education, psychology, cognitive sciences, brain research, neurolinguistics, gender, etc. and comprise the theoretical foundation for the philosophies, principles and methods underlying the dental education system. Educational methods are many and mixed. This group has used existing knowledge, personal experiences and current literature together with some of the material from the DentEd visits.
  •  
3.
  • Müller, Niels A., et al. (författare)
  • A single gene underlies the dynamic evolution of poplar sex determination.
  • 2020
  • Ingår i: Nature Plants. - : Springer Nature. - 2055-0278 .- 2055-026X. ; 6:6, s. 630-637
  • Tidskriftsartikel (refereegranskat)abstract
    • Although hundreds of plant lineages have independently evolved dioecy (that is, separation of the sexes), the underlying genetic basis remains largely elusive. Here we show that diverse poplar species carry partial duplicates of the ARABIDOPSIS RESPONSE REGULATOR 17 (ARR17) orthologue in the male-specific region of the Y chromosome. These duplicates give rise to small RNAs apparently causing male-specific DNA methylation and silencing of the ARR17 gene. CRISPR–Cas9-induced mutations demonstrate that ARR17 functions as a sex switch, triggering female development when on and male development when off. Despite repeated turnover events, including a transition from the XY system to a ZW system, the sex-specific regulation of ARR17 is conserved across the poplar genus and probably beyond. Our data reveal how a single-gene-based mechanism of dioecy can enable highly dynamic sex-linked regions and contribute to maintaining recombination and integrity of sex chromosomes.
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