F. Kjellberg

Publications140
h-index41
Citations5,360
Highly Influential Citations298
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Phylogenetic relationships, historical biogeography and character evolution of fig-pollinating wasps
TLDR
The fig–wasp mutualism exhibits extraordinarily long–term evolutionary stability despite clearly identifiable conflicts of interest between the interactors, which is reflected by the very distinct variations found on the basic mutualistic theme.
Pollination mode in fig wasps: the predictive power of correlated traits
TLDR
It is shown that mode of pollination can confidently be predicted from fig traits only (anther–to–ovule ratio) or from wasp trait only (presence of coxal combs), and that active pollination remains the predominant mode ofpollination in Ficus.
A clonal theory of parasitic protozoa: the population structures of Entamoeba, Giardia, Leishmania, Naegleria, Plasmodium, Trichomonas, and Trypanosoma and their medical and taxonomical consequences.
TLDR
A population genetic analysis of extensive data on biochemical polymorphisms indicates that the two fundamental consequences of sexual reproduction are apparently rare or absent in natural populations of the parasitic protozoa.
An Extreme Case of Plant–Insect Codiversification: Figs and Fig-Pollinating Wasps
TLDR
Biogeographic analyses indicate that the present-day distribution of fig and pollinator lineages is consistent with a Eurasian origin and subsequent dispersal, rather than with Gondwanan vicariance.
Identification and characterization of microsatellite loci in the common fig (Ficus carica L.) and representative species of the genus Ficus
TLDR
Except for one microsatellite locus, the observed heterozygosity was higher than the expected value and gave amplification products in 17 other Ficus species in 86% of the cases.
CONVERGENCE AND COEVOLUTION IN A MUTUALISM: EVIDENCE FROM A MOLECULAR PHYLOGENY OF FICUS
TLDR
Investigation of Ficus life-history trait evolution and fig/fig wasp coadaptation in the context of a well-resolved molecular phylogeny reveals correlations in ostiole shape, stigma morphology, and stamen:ovule ratio that provide evidence for reciprocal adaptations of morphological characters between these mutualistic partners that have interacted over a long evolutionary time.
Are eukaryotic microorganisms clonal or sexual? A population genetics vantage.
TLDR
It is argued that the mode of reproduction of microorganisms in nature can only be decided by population genetic information, and many parasitic protozoa and unicellular fungi have clonal rather than sexual population structures, which has major consequences for medical research and practice.
THE STABILITY OF THE SYMBIOSIS BETWEEN DIOECIOUS FIGS AND THEIR POLLINATORS: A STUDY OF FICUS CARICA L. AND BLASTOPHAGA PSENES L.
TLDR
It is shown that the fruiting phenology of Ficus carica, which stabilizes the symbiosis, is the result of short‐term selective pressures on the male function of the trees, which suggest a possible pathway from monoecy to dioecy in Ficus under seasonal climates.
Gynandromorphs and intersexes: potential to understand the mechanism of sex determination in arthropods
TLDR
Gynandromorphs (i.e., sexual mosaics) are genetically chimeric individuals consisting of male and female tissues, and intersexes are genetically uniform but all or some parts of their tissues have either a sexual phenotype opposite to their genetic sex or an intermediate sexual phenotype.
Laying the foundations for a new classification of Agaonidae (Hymenoptera: Chalcidoidea), a multilocus phylogenetic approach
TLDR
A phylogeny of the Agaonidae, pollinators of Ficus species (Moraceae), is estimated using 4182 nucleotides from six genes, obtained from 101 species representing 19 of the 20 recognized genera, and four outgroups and a new classification is proposed.
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