34 Works

Data from: The phylogenetic utility and functional constraint of microRNA flanking sequences

Nathan J. Kenny, Yung Wa Sin, Alexander Hayward, Jordi Paps, Ka Hou Chu & Jerome H. L. Hui
MicroRNAs (miRNAs) have recently risen to prominence as novel factors responsible for post-transcriptional regulation of gene expression. miRNA genes have been posited as highly conserved in the clades in which they exist. Consequently, miRNAs have been used as rare genome change characters to estimate phylogeny by tracking their gain and loss. However, their short length (21–23 bp) has limited their perceived utility in sequenced-based phylogenetic inference. Here, using reference taxa with established phylogenetic relationships, we...

Data from: A novel method to analyze social transmission in chronologically sequenced assemblages, implemented on cultural inheritance of the art of cooking

Sven Isaksson, Alexander Funcke, Ida Envall, Magnus Enquist & Patrik Lindenfors
Here we present an analytical technique for the measurement and evaluation of changes in chronologically sequenced assemblages. To illustrate the method, we studied the cultural evolution of European cooking as revealed in seven cook books dispersed over the past 800 years. We investigated if changes in the set of commonly used ingredients were mainly gradual or subject to fashion fluctuations. Applying our method to the data from the cook books revealed that overall, there is...

Data from: Effect of host plant and immune challenge on the levels of chemosensory and odorant-binding proteins in caterpillar salivary glands

Maria De La Paz Celorio-Mancera, A. Jimmy Ytterberg, Dorothea Rutishauser, Niklas Janz & Roman A. Zubarev
More than half of the proteome from mandibular glands in caterpillars is represented by chemosensory proteins. Based on sequence similarity, these proteins are putative transporters of ligands to gustatory receptors in sensory organs of insects. We sought to determine whether these proteins are inducible by comparing, both qualitatively and quantitatively, the salivary (mandibular and labial) proteomes from caterpillars (Vanessa cardui) reared on different plants and artificial diet containing either bacteria or bacterial cell-walls. We included...

Data from: Arthropod but not bird predation in Ethiopian homegardens is higher in tree-poor than in tree-rich landscapes

Debissa Lemessa, Peter A. Hambäck & Kristoffer Hylander
Bird and arthropod predation is often associated with natural pest control in agricultural landscapes, but the rates of predation may vary with the amount of tree cover or other environmental factors. We examined bird and arthropod predation in three tree-rich and three tree-poor landscapes across southwestern Ethiopia. Within each landscape we selected three tree-rich and three tree-poor homegardens in which we recorded the number of tree species and tree stems within 100 × 100 m...

Data from: Consequences of a demographic bottleneck on genetic structure and variation in the Scandinavian brown bear

Georgios Xenikoudakis, Erik Ersmark, Lisette Waits, Jonas Kindberg, Jon E. Swenson & Love Dalén
The Scandinavian brown bear went through a major decline in population size approximately 100 years ago, due to intense hunting. After being protected, the population subsequently recovered and today numbers in the thousands. The genetic diversity in the contemporary population has been investigated in considerable detail, and it has been shown that the population consists of several subpopulations that display relatively high levels of genetic variation. However, previous studies have been unable to resolve the...

Data from: Do deposit-feeders compete? Isotopic niche analysis of an invasion in a species-poor system

Agnes M. L. Karlson, Elena Gorokhova & Ragnar Elmgren
Successful establishment of invasive species is often related to the existence of vacant niches. Competition occurs when invaders use the same limiting resources as members of the recipient community, which will be reflected in some overlap of their trophic niches. The concept of isotopic niche has been used to study trophic niche partitioning among species. Here, we present a two-year field study comparing isotopic niches of the deposit-feeding community in a naturally species-poor system. The...

Data from: The constrained maximal expression level owing to haploidy shapes gene content on the mammalian X chromosome

Laurence D. Hurst, Avazeh T. Ghanbarian, Alistair R. R. Forrest, Fantom Consortium & Lukasz Huminiecki
X chromosomes are unusual in many regards, not least of which is their nonrandom gene content. The causes of this bias are commonly discussed in the context of sexual antagonism and the avoidance of activity in the male germline. Here, we examine the notion that, at least in some taxa, functionally biased gene content may more profoundly be shaped by limits imposed on gene expression owing to haploid expression of the X chromosome. Notably, if...

Data from: Tolerance to gamma radiation in the tardigrade Hypsibius dujardini from embryo to adult correlate inversely with cellular proliferation

Eliana Beltran-Pardo, K. Ingemar Jönsson, Mats Harms-Ringdahl, Siamak Haghdoost & Andrzej Wojcik
Tardigrades are highly tolerant to desiccation and ionizing radiation but the mechanisms of this tolerance are not well understood. In this paper, we report studies on dose responses of adults and eggs of the tardigrade Hypsibius dujardini exposed to gamma radiation. In adults the LD50/48h for survival was estimated at ~ 4200 Gy, and doses higher than 100 Gy reduced both fertility and hatchability of laid eggs drastically. We also evaluated the effect of radiation...

Data from: Body size response to warming: time of the season matters in a tephritid fly

Xiqiang Xi, Xinwei Wu, Soren Nylin, Shucun Sun & Xinqiang Xi
Whether shrinking body size is a universal response to climate change remains controversial. Moreover, the mechanisms underlying body size shifts are poorly understood. Here, assuming that life history traits evolve to maximize fitness according to life history plasticity theory, we hypothesized that under global warming temperate multivoltine insects should emerge earlier with a smaller body mass in the early growing season, but emerge later with a larger body mass in the late season. We tested...

Registration Year

  • 2015
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Affiliations

  • Stockholm University
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  • Swedish University of Agricultural Sciences
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  • Norwegian University of Life Sciences
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  • University of Helsinki
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  • Karolinska Institute
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