31 Works

Data from: Genes, geology, and germs: gut microbiota across a primate hybrid zone are explained by site soil properties, not host species

Laura E. Grieneisen, Marie J. E. Charpentier, Susan C. Alberts, Ran Blekhman, Gideon Bradburd, Jenny Tung & Elizabeth A. Archie
Gut microbiota in geographically isolated host populations are often distinct. These differences have been attributed to between-population differences in host behaviors, environments, genetics, and geographic distance. However, which factors are most important remains unknown. Here we fill this gap for baboons by leveraging information on 13 environmental variables from 14 baboon populations spanning a natural hybrid zone. Sampling across a hybrid zone allowed us to additionally test whether phylosymbiosis (codiversification between hosts and their microbiota)...

Data from: A mitochondrial progesterone receptor increases cardiac beta-oxidation and remodeling

Qunsheng Dai, Creighton E Likes, Anthony L Luz, Lan Mao, Jason S Yeh, Zhengzheng Wei, Maragatha Kuchibhatla, Olga R Ilkayeva, Timothy R Koves & Thomas M Price
Progesterone is primarily a pregnancy related hormone, produced in substantial quantities after ovulation and during gestation. Traditionally known to function via nuclear receptors for transcriptional regulation there is also evidence of non-nuclear action. A previously identified mitochondrial progesterone receptor (PR-M) increases cellular respiration in cell models. In these studies, we demonstrated that expression of PR-M in rat H9c2 cardiomyocytes resulted in a ligand-dependent increase in oxidative cellular respiration and beta-oxidation. Cardiac expression in a TET-On...

Data from: Antagonistic selection and pleiotropy constrain the evolution of plant chemical defenses

Rose A Keith & Thomas Mitchell-Olds
When pleiotropy is present, genetic correlations may constrain the evolution of ecologically important traits. We used a quantitative genetics approach to investigate constraints on the evolution of secondary metabolites in a wild mustard, Boechera stricta. Much of the genetic variation in chemical composition of glucosinolates in B. stricta is controlled by a single locus, BCMA1/3. In a large-scale common garden experiment under natural conditions, we quantified fitness and glucosinolate profile in two leaf types and...

Data from: Species diversification and phylogenetically constrained symbiont switching generated high modularity in the lichen genus Peltigera

Pierre-Luc Chagnon, Nicolas Magain, Jolanta Miadlikowska & Francois Lutzoni
1. Ecological interactions range from purely specialized to extremely generalized in nature. Recent research has showed very high levels of specialization in the cyanolichens involving Peltigera (mycobionts) and their Nostoc photosynthetic partners (cyanobionts). Yet, little is known about the mechanisms contributing to the establishment and maintenance of such high specialization levels. 2. Here, we characterized interactions between Peltigera and Nostoc partners at a global scale, using more than one thousand thalli. We used tools from...

Data from: Categorical colour perception occurs in both signalling and non-signalling colour ranges in a songbird

Matthew N. Zipple, Eleanor M. Caves, Patrick A. Green, Susan Peters, Sonke Johnsen & Stephen Nowicki
Although perception begins when a stimulus is transduced by a sensory neuron, numerous perceptual mechanisms can modify sensory information as it is processed by an animal’s nervous system. One such mechanism is categorical perception, in which 1) continuously-varying stimuli are labelled as belonging to a discrete number of categories and 2) there is enhanced discrimination between stimuli from different categories as compared to equally-different stimuli from within the same category. We have shown previously that...

Data from: Uncovering the genomic signature of ancient introgression between white oak lineages (Quercus)

Andrew A. Crowl, Paul S. Manos, John D. McVay, Alan R. Lemmon, Emily Moriarty Lemmon & Andrew L. Hipp
• Botanists have long recognized interspecific gene flow as a common occurrence within white oaks (Quercus section Quercus). Historical allele exchange, however, has not been fully characterized, and the complex genomic signals resulting from the combination of vertical and horizontal gene transmission may confound phylogenetic inference and obscure our ability to accurately infer the deep evolutionary history of oaks. • Using anchored enrichment, we obtained a phylogenomic dataset consisting of hundreds of single-copy nuclear loci....

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