B
Barbara Keller
Researcher at University of Zurich
Publications - 40
Citations - 2748
Barbara Keller is an academic researcher from University of Zurich. The author has contributed to research in topics: Heterostyly & Daphnia. The author has an hindex of 17, co-authored 36 publications receiving 2311 citations. Previous affiliations of Barbara Keller include Swiss Federal Institute of Aquatic Science and Technology.
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Journal ArticleDOI
Hybridization and speciation
Richard J. Abbott,Dirk C. Albach,Stephen W. Ansell,Jan W. Arntzen,Stuart J. E. Baird,Nicolas Bierne,Janette W. Boughman,Alan Brelsford,C. A. Buerkle,Richard J. A. Buggs,Roger K. Butlin,Ulf Dieckmann,Fabrice Eroukhmanoff,Andrea Grill,Sara Helms Cahan,Jo S. Hermansen,Godfrey M. Hewitt,Alan G. Hudson,Chris D. Jiggins,Julia C. Jones,Barbara Keller,T. Marczewski,James Mallet,Paloma Martínez-Rodríguez,Markus Möst,Sean P. Mullen,Richard A. Nichols,Arne W. Nolte,Christian Parisod,Karin S. Pfennig,Amber M. Rice,Michael G. Ritchie,Burkhardt Seifert,Carole M. Smadja,Rike B. Stelkens,Jacek M. Szymura,Risto Väinölä,Jochen B. W. Wolf,Dietmar Zinner +38 more
TL;DR: A perspective on the context and evolutionary significance of hybridization during speciation is offered, highlighting issues of current interest and debate and suggesting that the Dobzhansky–Muller model of hybrid incompatibilities requires a broader interpretation.
Journal ArticleDOI
Presence versus absence of CYP734A50 underlies the style-length dimorphism in primroses
Cuong Nguyen Huu,Christian Kappel,Barbara Keller,Adrien Sicard,Yumiko Takebayashi,Holger Breuninger,Michael D. Nowak,Michael D. Nowak,Isabel Bäurle,Axel Himmelbach,Michael Burkart,Thomas Ebbing-Lohaus,Hitoshi Sakakibara,Lothar Altschmied,Elena Conti,Michael Lenhard +15 more
TL;DR: This work identifies the Primula CYP734A50 gene, encoding a putative brassinosteroid-degrading enzyme, as the G locus that determines the style-length dimorphism, and sheds light on the evolution of the S-locus as a prime model for a complex plant supergene.
Journal ArticleDOI
Heterostyly promotes disassortative pollination and reduces sexual interference in Darwin's primroses: evidence from experimental studies
TL;DR: The results help to understand how the morphological and physiological components of heterostyly contribute to optimizing pollen transfer and minimizing self- and intra-morph pollination, thus promoting more efficient outcrossing in species with this floral polymorphism.
Journal ArticleDOI
Nonrandom sexual reproduction and diapausing egg production in a Daphnia hybrid species complex
Barbara Keller,Piet Spaak +1 more
TL;DR: It is concluded that hybrid Daphnia have a lower sexual reproductive success than the parental D. galeata, and the genotypic class composition of the diapausing eggs does not reflect the extant pelagic population; therefore, Daphnian diapauses egg banks do not always represent the past lake taxa structure.
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Spatial, environmental and anthropogenic effects on the taxon composition of hybridizing Daphnia.
TL;DR: It is demonstrated that human-mediated habitat disturbance (eutrophication) has facilitated hybrid success and altered the Daphnia taxon composition across lakes and at the same time, specific habitat conditions might provide a refuge from hybridization for native genotypes.